Resource acquisition and transport in vascular plants
|
|
- Jacob Ryan
- 5 years ago
- Views:
Transcription
1 Resource acquisition and transport in vascular plants Overview of what a plant does Chapter 36 CO 2 O 2 O 2 and and CO 2 CO 2 O 2 Sugar Light Shoots are optimized to capture light and reduce water loss Large leaves in tropical forests Small leaves in dry environments Alternate phyllotaxy limits overlapping of leaves in lower light environment and O 2 CO 2 Opposite phyllotaxy may be advantageous in high light environments 1
2 Leaf orientation optimizes light conditions Roots are optimized to absorb and anchor Taproot systems anchor tall plants More branching in areas of high resources Less branching in roots of self Mycorrhizae enhance root absorption Substances move through the apoplast and/or the symplast Movement of substances across cell membranes Proton pumps set chemiosmotic gradient, which is then used for cotransport Ion channels open in response to chemicals, pressure or voltage The trade-off for a plant having a low aboveground surface-area-to-volume ratio would be A. low water loss but high respiration rate. B. low water loss but reduced photosynthetic capacity. C. low water loss but increased vulnerability to herbivory. D. low water loss but decreased water absorption capacity. low water loss but high r... low water loss but reduc.. low water loss but incre... low water loss but decre... The most important determinant of evolutionary pressure affecting leaf shape and size is A. light availability. B. soil nutrient levels. C. water availability. D.average yearly temperature fluctuations. light availability. soil nutrient levels. water availability. average yearly temperat... 2
3 A root tip encountering a patch of soil rich in nitrogen is most likely to A. stop growing. B. grow faster. C. form lateral branches. D.increase production of root hairs. The generation of an electrochemical proton (H+) gradient across membranes allows for A. passive uptake of water. B. accumulation of ions against their concentration gradient. C. long-distance transport of salts and amino acids. D. increased enzymatic activity on membranes. stop growing. grow faster. form lateral branches. increase production of r... passive uptake of water. accumulation of ions aga... long-distance transport o... increased enzymatic activ... Water moves by osmosis Water potential drives direction of water movement Water moves from areas of higher water potential to areas of lower water potential Water potential is designated as ψ and is measured in Mpa Water potential is determined by solute concentration and physical pressure Ψ = ψs + ψp The addition of solutes decreases water potential Turgor pressure and wilting Bulk flow Plasmolysis For long distances, plants rely on bulk flow for transport Bulk flow is movement of liquid in response to a pressure gradient Bulk flow is independent of solute concentration 3
4 Moving water and into the xylem Movement of water and in the xylem move by bulk flow driven by transpiration Is water pushed into the plant or pulled to the top? There is some pushing of water by root pressure due to pumping of into xylem, but pressure is small Guttation Cohesion-tension hypothesis explains how transpiration pulls water up Briefly, transpiration causes the pull with negative water potential (pressure), then cohesion transmits the pull along the entire plant Cohesion is the attractive force between each water molecule Adhesion helps move water as well Adhesion is the attractive force between the water molecule and the xylem wall Transpirational pull goes from the stomata, through the xylem, through the roots, all the way into the soil solution Loss of cohesion and subsequent air bubbles cause cavitation 4
5 Stomata balance need for CO2 for respiration with water loss through transpiration 95% of water loss is through stomata Stomatal density controlled by genetics and by environment Desert plants have less stomata than forest plants Stomatal density has decreased since 1927 due to increases in CO2 Control of stomatal opening and closing Triggers to stomatal opening/closing Turgid guard cells open stomatal opening Triggered by opening of K+ channels In the morning Blue-light receptors CO2 depletion Internal circadian clock Due to environmental stresses Wind High temperature ABA produced in response to water deficiency, which then causes stomatal closing Adaptations in xerophytes CAM photosynthesis Translocation is movement of photosynthetic product Phloem sap moves sugars from source to sink Phloem sap also contains amino acids, hormones and 5
6 Sugar is loaded into phloem usually through active transport Phloem movement is bulk flow by positive pressure Using aphids to study phloem sap Water can enter roots through two pathways, apoplastic and symplastic routes. How do these pathways differ? A. The apoplastic route is for water and the symplastic route is for nutrients. B. The apoplastic route is for nutrients and the symplastic route is for water. C. The apoplastic route does not involve transport across a cell membrane but the symplastic route does. D. The apoplastic route is used in xylem and the symplastic route in phloem. The apoplastic route is f.. The apoplastic route is fo... The apoplastic route doe... The apoplastic route is us.. Which of the following best describes bulk flow in the xylem of a tall tree? A. Pressure flow B. Diffusion and osmosis C. Capillary action D.Cohesion and tension Pressure flow Diffusion and osmosis Capillary action Cohesion and tension In vascular plants, how is the sucroserich phloem sap transported? A. From the roots to the leaves B. From the leaves to the roots C. From sucrose source to sucrose sink D.Only diffuses locally From the roots to the leaves From the leaves to the roots From sucrose source to s... Only diffuses locally 6
7 Sugar maples are tapped for their sugar-rich sap in the early spring. This sap is transported in and is moving from the. A. xylem; leaves B. xylem; roots C. phloem; leaves D.phloem; roots xylem; leaves xylem; roots phloem; leaves phloem; roots 7
AP Biology Chapter 36
Chapter 36 Chapter 36 Transport in Plants 2006-2007 Transport in plants - Overview H2O & minerals transport in xylem transpiration evaporation, adhesion & cohesion negative pressure Sugars transport in
More informationNOTES: CH 36 - Transport in Plants
NOTES: CH 36 - Transport in Plants Recall that transport across the cell membrane of plant cells occurs by: -diffusion -facilitated diffusion -osmosis (diffusion of water) -active transport (done by transport
More informationChapter 36~ Transport in Plants
Chapter 36~ Transport in Plants Structural Features Used for Resource Acquistion Roots and stems to do transport of resources Diffusion, active transport, and bulk flow Work in vascular plants to transport
More informationAP Biology. Transport in plants. Chapter 36. Transport in Plants. Transport in plants. Transport in plants. Transport in plants. Transport in plants
Chapter 36. Transport in Plants evaporation, adhesion & cohesion negative pressure evaporation, adhesion & cohesion negative pressure transport in phloem bulk flow Calvin cycle in leaves loads sucrose
More informationCh. 36 Transport in Vascular Plants
Ch. 36 Transport in Vascular Plants Feb 4 1:32 PM 1 Essential Question: How does a tall tree get the water from its roots to the top of the tree? Feb 4 1:38 PM 2 Shoot architecture and Light Capture: Phyllotaxy
More informationTransport in Plants (Ch. 23.5)
Transport in Plants (Ch. 23.5) Transport in plants H 2 O & minerals transport in xylem Transpiration Adhesion, cohesion & Evaporation Sugars transport in phloem bulk flow Gas exchange photosynthesis CO
More informationTransport in Plants Notes AP Biology Mrs. Laux 3 levels of transport occur in plants: 1. Uptake of water and solutes by individual cells -for
3 levels of transport occur in plants: 1. Uptake of water and solutes by individual cells -for photosynthesis and respiration -ex: absorption of H 2 O /minerals by root hairs 2. Short distance cell-to-cell
More informationChapter 36: Transport in Vascular Plants - Pathways for Survival
Chapter 36: Transport in Vascular Plants - Pathways for Survival For vascular plants, the evolutionary journey onto land involved differentiation into roots and shoots Vascular tissue transports nutrients
More informationCHAPTER TRANSPORT
CHAPTER 2 2.4 TRANSPORT Uptake of CO2 FOCUS: Uptake and transport of water and mineral salts Transport of organic substances Physical forces drive the transport of materials in plants over a range of distances
More informationTransport in Plants AP Biology
Transport in Plants 2006-2007 Water & mineral absorption Water absorption from soil osmosis aquaporins Mineral absorption active transport proton pumps active transport of H + aquaporin root hair proton
More informationQuestion 1: What are the factors affecting the rate of diffusion? Diffusion is the passive movement of substances from a region of higher concentration to a region of lower concentration. Diffusion of
More informationChapter 35 Regulation and Transport in Plants
Chapter 35 Regulation and Remember what plants need Photosynthesis light reactions Calvin cycle light sun H 2 O ground CO 2 air What structures have plants evolved to supply these needs? Interdependent
More informationOrgans and leaf structure
Organs and leaf structure Different types of tissues are arranged together to form organs. Structure: 2 parts (Petiole and Leaf Blade) Thin flat blade, large surface area Leaves contain all 3 types of
More informationMovement of water and solutes in plants Chapter 4 and 30
Movement of water and solutes in plants Chapter 4 and 30 Molecular Movement Diffusion Molecules or ions moving in the opposite direction = movement against a diffusion gradient. Rates of diffusion are
More informationTransport in Plants. Transport in plants. Transport across Membranes. Water potential 10/9/2016
Transport in Plants Transport in plants How is a plant able to move water and nutrients from roots to the rest of the plant body? Especially tall trees? Sequoia can be over 300 feet tall! Transport across
More informationPlant Transport and Nutrition
Plant Transport and Nutrition Chapter 36: Transport in Plants H 2 O & Minerals o Transport in xylem o Transpiration Evaporation, adhesion & cohesion Negative pressure. Sugars o Transport in phloem. o Bulk
More informationChapter 36. Transport in Vascular Plants
Chapter 36 Transport in Vascular Plants Overview: Pathways for Survival For vascular plants The evolutionary journey onto land involved the differentiation of the plant body into roots and shoots Vascular
More informationCHAPTER 32 TRANSPORT IN PLANTS OUTLINE OBJECTIVES
CHAPTER 32 TRANSPORT IN PLANTS OUTLINE I. The traffic of water and solutes occurs on cellular, organ, and whole-plant levels: an overview of transport in plants A. Transport at the Cellular Level B. Short
More informationBiology 1030 Winter 2009
Meeting Tissue Needs II Chapter 36 (738-755) Chapter 37 (756-770) Cellular Currency Plants harvest solar energy Photosynthesis Produces sugars Proteins, nucleic acids, lipids? H 2 O CO 2 Plants cells still
More informationChapter 29 Active Reading Guide Resource Acquisition, Nutrition, and Transport in Vascular Plants
Name: AP Biology Mr. Croft Chapter 29 Active Reading Guide Resource Acquisition, Nutrition, and Transport in Vascular Plants Section 1 1. Competition for light, water, and nutrients is intense among the
More informationCBSE Quick Revision Notes (Class-11 Biology) CHAPTER-11 TRANSPORT IN PLANTS
CBSE Quick Revision Notes (Class-11 Biology) CHAPTER-11 TRANSPORT IN PLANTS Plant transport various substance like gases, minerals, water, hormones, photosynthetes and organic solutes to short distance
More informationCASE STUDY WATER ABSORPTION AND TRANSPORT IN PLANTS
CASE STUDY WATER ABSORPTION AND TRANSPORT IN PLANTS Presentation of the problem: We need a pump to uplift water to a tank. The requirement of a pump is to pull water against the gravity. Look at the human
More informationResource Acquisition and Transport in Vascular Plants
Chapter 36 Resource Acquisition and Transport in Vascular Plants PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley
More informationResource Acquisition and Transport in Vascular Plants
Chapter 36 Resource Acquisition and Transport in Vascular Plants PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley
More informationIntroduction to Plant Transport
Introduction to Plant Transport The algal ancestors of plants were completely immersed in water and dissolved minerals. The adaptation to land involved the differentiation of the plant body into roots,
More informationPLANT SCIENCE. 9.2 Transport in Angiospermophytes
PLANT SCIENCE 9.2 Transport in Angiospermophytes Support of terrestrial plants Support of terrestrial plants comes through: Thickened cellulose in cell walls Turgor pressure of cells Lignified xylem Xylem
More informationOCR (A) Biology A-level
OCR (A) Biology A-level Topic 3.3: Transport in plants Notes Plants require a transport system to ensure that all the cells of a plant receive a sufficient amount of nutrients. This is achieved through
More informationPlease sit next to a partner. you are an A or a B
Please sit next to a partner you are an A or a B Plants Transport in Vascular Plants Transport Overview Vascular tissue transports nutrients throughout a plant Such transport may occur over long distances
More informationTransport in Vascular Plants
Chapter 36 Transport in Vascular Plants PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece Lectures by Chris Romero Vascular tissue Transports nutrients throughout a plant; such
More informationIntroduction to Plant Transport
Introduction to Plant Transport The algal ancestors of plants were completely immersed in water and dissolved minerals. The adaptation to land involved the differentiation of the plant body into roots,
More informationWater and Food Transportation
Water and Food Transportation Sugars in a Plant Sugar Form Location in Plant Organ Function of Sugar form Glucose Leaf Energy (made in photosynthesis summer, used in cellular respiration for growth-spring)
More informationChapter 12 & 13 Transport, Soil and Mineral Nutrition
Chapter 12 & 13 Transport, Soil and Mineral Nutrition Topics Methods of transport Xylem transport Phloem transport Soils properties and nutrient absorption Macro and micro essential nutrient elements Too
More informationTransport of substances in plants
Transport of substances in plants We have already looked at why many organisms need transport systems with special reference to surface area and volume. The larger the volume : surface area ratio, the
More informationBio 102 Chapter 32 Transport in Plants
Bio 102 Chapter 32 Transport in Plants 2006-2007 Passive Water & Mineral Absorption Water absorption from soil OSMOSIS = transport of WATER across cell membrane WATER POTENTIAL determines direction of
More informationin angiosperms 10/29/08 Roots take up water via roots Large surface area is needed Roots branch and have root hairs Cortex structure also helps uptake
in angiosperms A. Root System Roots take up water via roots Large surface area is needed Roots branch and have root hairs Cortex structure also helps uptake 1 B. Minerals Nitrogen (NO 3-,NH 4+ ) Potassium
More informationNutrition and Transport in Plants Chapter 26. Outline
Nutrition and Transport in Plants Chapter 26 Outline Essential Inorganic Nutrients Soil Formation Soil Profiles Soil Erosion Mineral Uptake Transport Mechanisms Water Organic Nutrients 1 2 Plant Nutrition
More informationIntroduction to Plant Transport
Introduction to Plant Transport The algal ancestors of plants were completely immersed in water and dissolved minerals. What would be the advantages to living on the land? What would be the problems? This
More informationTransport, Storage and Gas Exchange in Flowering Plants
Sixth Year Biology Transport, Storage and Gas Exchange in Flowering Plants Miss Rochford In this topic: Uptake and transport of: Water and minerals Carbon dioxide Gas exchange Transport of photosynthesis
More informationChapter 36 Transport in Vascular Plants Lecture Outline
Overview: Pathways for Survival Chapter 36 Transport in Vascular Plants Lecture Outline The algal ancestors of plants obtained water, minerals and CO2 from the water in which they were completely immersed.
More informationBio Factsheet. Transport in Plants. Number 342
Number 342 Transport in Plants This Factsheet: Explains why plants need a transport system Describes what plants transport Describes the tissues which carry out transport Outlines the position of the xylem
More informationCompartments and Transport. Three Major Pathways of Transport. Absorp+on of Water and Minerals by Root Cells. Bulk flow
Plasmodesmata Channels connec+ng neighboring cells Cell membrane and cytosol are con+nuous from cell to cell Symplast Cytoplasmic con+nuum Apoplast Compartments and Transport Through plasmodesmata con+nuum
More informationWater Acquisition and Transport - Whole Plants. 3 possible pathways for water movement across the soil-plant-atmosphere continuum
Water transport across the entire soil-plant-atmosphere continuum Water Acquisition and Transport - Whole Plants 3 possible pathways for water movement across the soil-plant-atmosphere continuum Apoplast
More information3. Describe the role played by protein pumps during active transport in plants.
CLASS XI BIOLOGY Transport in Plants 1. What are the factors affecting the rate of diffusion? Answer: Factors affecting the rate of diffusion: 1. Gradient of Concentration 2. Permeability of membrane 3.
More information35 Transport in Plants
Transport in Plants 35 Transport in Plants 35.1 How Do Plants Take Up Water and Solutes? 35.2 How Are Water and Minerals Transported in the Xylem? 35.3 How Do Stomata Control the Loss of Water and the
More informationC MPETENC EN I C ES LECT EC UR U E R
LECTURE 7: SUGAR TRANSPORT COMPETENCIES Students, after mastering the materials of Plant Physiology course, should be able to: 1. To explain the pathway of sugar transport in plants 2. To explain the mechanism
More informationof water unless it is moving via the symplast Water moves into the xylem for transport up the plant Water that does not cross the
Uptake of water The through Casparian Strip blocks root epidermis by passage osmosis of water unless it is moving via the symplast Water moves into the xylem for transport up the plant Water that does
More information2014 Pearson Education, Inc. 1
1 CO 2 O 2 Light Sugar O 2 and minerals CO 2 2 Buds 42 29 21 34 13 26 5 18 10 31 23 8 15 28 16 2 24 Shoot apical meristem 7 3 20 1 mm 32 11 19 12 6 4 1 25 17 14 9 40 27 22 3 Cell wall Apoplastic route
More informationPlant Organs. Roots & Stems
Plant Organs Roots & Stems I. Roots A. F(x)s = grow underground 1. Absorb water & nutrients from soil 2. Anchor plant in the soil 3. Make hormones important for growth & development I. Roots B. Structure
More informationPlant Nutrition and Transport. Chapter 29
Plant Nutrition and Transport Chapter 29 Overview: Underground Plants The success of plants depends on their ability to gather and conserve resources from their environment. The transport of materials
More informationUnit B: Cells and Systems
Unit B: Cells and Systems Topic 4: Fluid Movement in Cells The Cell Membrane A cell membrane allows some to enter or leave the cell, while stopping other substances. It is a selectively membrane. (A permeable
More informationRecap. Waxy layer which protects the plant & conserves water. Contains chloroplasts: Specialized for light absorption.
Recap Contains chloroplasts: Specialized for light absorption Waxy layer which protects the plant & conserves water mesophyll Layer contains air spaces: Specialized for gas exchange Vascular Tissue Exchange
More informationDescribe plant meristems. Where are they located? perpetually embryonic cells found at tips of roots and shoots (apical vs.
Which conditions have the higher rate of transpiration? Light or dark: Humid or dry: Breezy or still air: Hot or warm: light (need CO 2 for photosyn.) dry (lower H 2 O potential out) breezy (greater evaporation)
More informationHomework for Monday: Correct potometer questions Complete transport in plants worksheet
Transport in plants Homework for Monday: Correct potometer questions Complete transport in plants worksheet Transpiration the loss of water from a plant through evaporation Did you know? A 15m maple tree
More informationSynoptic Biology: Water Potential
Number 225 Synoptic Biology: Water Potential This Factsheet reviews the very wide range of exam questions that test your understanding of water potential. Osmosis: the diffusion of water through a partially
More informationChapter C3: Multicellular Organisms Plants
Chapter C3: Multicellular Organisms Plants Multicellular Organisms Multicellular organisms have specialized cells of many different types that allow them to grow to a larger size than single-celled organisms.
More information[transport] in plants
[transport] in plants learningobjectives Identify the main parts of the transport system in plants xylem and phloem. Explain the structural adaptation of the xylem (ie lumen, lignin and dead cells) Explain
More informationBiology 2 Chapter 21 Review
Biology 2 Chapter 21 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is not a tissue system of vascular plants? a. vascular
More informationPlant Form & Function Chs 36 &37
Plant Form & Function Chs 36 &37 Focus on Angiosperms Most (97%) angiosperms are in two clades: 05 March 2009 ECOL 182R UofA K. E. Bonine Video 35.2 1 Monocots: one cotyledon Eudicots: two cotyledons Otherclades
More informationChapter 21: Plant Structure & Function
Chapter 21: Plant Structure & Function Chapter 21: Plant Structure & Function All organisms must: Take in certain materials, e.g. O 2, food, drink Eliminate other materials, e.g. CO 2, waste products Chapter
More informationWater Relations in Viticulture BRIANNA HOGE AND JIM KAMAS
Water Relations in Viticulture BRIANNA HOGE AND JIM KAMAS Overview Introduction Important Concepts for Understanding water Movement through Vines Osmosis Water Potential Cell Expansion and the Acid Growth
More informationExchanging Materials in Plants
Exchanging Materials in Plants 1 of 23 Boardworks Ltd 2012 2 of 23 Boardworks Ltd 2012 3 of 23 Boardworks Ltd 2012 All living things need to exchange materials Plants need to obtain certain materials for
More informationTransport in Plant (IGCSE Biology Syllabus )
Transport in Plant (IGCSE Biology Syllabus 2016-2018) Plants have transport systems to move food, water and minerals around. These systems use continuous tubes called xylem and phloem: - Xylem vessels
More information2014 Pearson Education, Inc. 1. Light. Sugar O 2 H 2 O. and minerals CO Pearson Education, Inc.
1 CO 2 O 2 Light ugar O 2 and minerals CO 2 2 Buds 34 42 29 26 31 18 21 13 5 10 23 8 15 28 16 24 hoot apical meristem 2 7 3 20 32 11 19 12 6 4 1 25 17 14 9 40 27 22 1 mm 3 Cell wall Apoplastic route Cytosol
More informationTwo major categories. BIOLOGY 189 Fundamentals of Life Sciences. Spring 2004 Plant Structure and Function. Plant Structure and Function
BIOLOGY 189 Fundamentals of Life Sciences Spring 2004 Plant Structure and Function 18 16 14 12 10 8 6 Examination #1 Class Average: 33/60 for 55% 4 Chapters 31-32 32 2 0 6 10 15 20 25 30 35 40 45 50 55
More informationChapter 30: Plant Nutrition & Transport
Chapter 30: Plant Nutrition & Transport Carnivorous Plants Capture animals to supplement their nutrient intake Venus flytrap lures insects with sugary bait; closes on victim Cobra lily lures insects down
More informationPreview from Notesale.co.uk Page 20 of 34
Page 20 of 34 (i) The role of haemoglobin in transporting oxygen and carbon dioxide To include the reversible binding of oxygen molecules, carbonic anhydrase, haemoglobinic acid, HCO3- and the chloride
More informationDNA or RNA metabolism (1%) Signal transduction (2%) Development (2%) Other cellular processes (17%)
Fig. 35-24 Other metabolism (18%) DNA or RNA metabolism (1%) Signal transduction (2%) Development (2%) Unknown (24%) Energy pathways (3%) Cell division and organization (3%) Transport (4%) Transcription
More informationTransportation in Plants
Transportation in Plants Bell Ringer - 5 Min Why do you need transportation in living organisms? Explain your answer with a suitable example. Water movement through plants How does water move through a
More informationIB Bio: Plant Biology. Topic 9
IB Bio: Plant Biology Topic 9 9.1: Transport in xylem How and why does water move up a plant? How do plants conserve water? 9.2: Transport in phloem How and why and where does food move in a plant? 9.3:
More informationBRAINSTORM ACTIVITY What do we depend on plants for?
SBI3U1 BRAINSTORM ACTIVITY What do we depend on plants for? STOP! THINK! PAIR! SHARE! With your partner, brainstorm 5 significant uses of plants. Write them down. Now share your ideas with the rest of
More informationARIF ULLAH ITHS
SUMMARY Feature of xylem and phloem and their role. Distribution of xylem and phloem (vascular bundles) in stem and root of dicotyledonous plants. Transport of water from the root to the atmosphere through
More informationTRANSPORT OF MATERIALS IN PLANTS
TRANSPORT OF MATERIALS IN PLANTS Plants require adequate supply of CO2, O2, mineral salts and water for normal growth. Lower plants like algae move materials in and out of their bodies by diffusion and
More informationEarth Has a Rich Diversity of Plants. Plant Structure, Nutrition, and Transport. Angiosperms: Monocots and Dicots. Angiosperms: Dicots
Plant Structure, Nutrition, and Transport Earth Has a Rich Diversity of Plants There are over 280,000 different plant species organized into four major groups: bryophytes (mosses), seedless vascular plants,
More informationTranspiration. Interesting Fact:
Transpiration Transpiration is a process that involves loss of water vapour through the stomata of plants. Transpiration is thought to be a 'necessary cost or evil' to allow the plant to absorb water from
More informationAP Biology Transpiration and Stomata
AP Biology Transpiration and Stomata Living things must exchange matter with the environment to survive, Example: Gas Exchange in Plants photosynthesis cellular respiration 1. During which hours does a
More informationAbsorption of Water by Plants
Absorption of Water by Plants Absorption of water by cells and roots Availability of Water in the Soil Soil is the major source of water for plants. The plants absorb water through root hairs from the
More informationBIOLOGY PLANT WATER RELATIONS
BIOLOGY PLANT WATER RELATIONS PLANT WATER RELATIONS Fundamental concepts Absorption of water Ascent of sap Transpiration Guttation Translocation of organic solutes FUNDAMENTAL CONCEPTS Passive transport:
More informationABSORPTION OF WATER MODE OF WATER ABSORPTION ACTIVE AND PASSIVE ABSORPTION AND FACTORS AFFECTING ABSORPTION.
ABSORPTION OF WATER MODE OF WATER ABSORPTION ACTIVE AND PASSIVE ABSORPTION AND FACTORS AFFECTING ABSORPTION. PRELUDE OF WATER POTENTIAL Most organisms are comprised of at least 70% or more water. Some
More informationHow do trees like the California redwoods and the aspens of Alberta get water and minerals from their roots to their leaves way up at the top?
Transport in Plants Have you visited or at least heard about the giant California redwoods? These amazing trees can grow up to 100 m tall! In Alberta, even the trees in the central and north central regions
More informationBIOL 221 Concepts of Botany Water Relations, Osmosis and Transpiration:
BIOL 221 Concepts of Botany Topic 12: Water Relations, Osmosis and Transpiration: A. Water Relations Water plays a critical role in plants. Water is the universal solvent that allows biochemical reactions
More informationBiology 102 Environmental Biology Plants/Agriculture Unit Page 1 of 5
Biology 102 Environmental Biology Plants/Agriculture Unit Page 1 of 5 Based on Mader, Sylvia S. 1996. Biology - 5th Ed. WCB and Cox, G.W. 1997. Conservation Biology - 2nd ed. WCB and Levine, J.S. and K.R.
More informationStomata and water fluxes through plants
Stomata and water fluxes through plants Bill Davies The Lancaster Environment Centre, UK Summary Stomata and responses to the environment Conductance, a function of frequency and aperture Measuring/estimating
More informationThe three principal organs of seed plants are roots, stems, and leaves.
23 1 Specialized Tissues in Plants Seed Plant Structure The three principal organs of seed plants are roots, stems, and leaves. 1 of 34 23 1 Specialized Tissues in Plants Seed Plant Structure Roots: absorb
More informationMovement across the Cell Membrane. AP Biology
Movement across the Cell Membrane The diffusion of solutes across a synthetic membrane Molecules of dye WATER Membrane (cross section) Net diffusion Net diffusion Equilibrium (a) Diffusion of one solute
More informationProgetto cofinanziato dal programma LIFE+ Department of Agricultural Engineering and Agronomy - University of Naples Federico II
Water in Plants Progetto cofinanziato dal programma LIFE+ Stefania De Pascale Stefania De Pascale Department of Agricultural Engineering and Agronomy - University of Naples Federico II Why do plants need
More information1. Transpiration may be defined as the loss of water vapour by diffusion from a plant to its environment.
1. Transpiration may be defined as the loss of water vapour by diffusion from a plant to its environment. The diagram below shows apparatus that can be used to estimate transpiration rates of a leafy shoot.
More informationChapter 23 Notes Roots Stems Leaves
Chapter 23 Notes Roots Stems Leaves I. Specialized tissue in plants - effective way to ensure the plant s survival A. Seed plant structure 1. Roots - a. Absorbs water and dissolves nutrients b. anchors
More informationthebiotutor. AS Biology OCR. Unit F211: Cells, Exchange & Transport. Module 2.3 Transport in Plants. Answers.
thebiotutor AS Biology OCR Unit F211: Cells, Exchange & Transport Module 2.3 Transport in Plants Answers Andy Todd 2013 1 1. (i) transports water (up plant); ACCEPT alternative wording for transport e.g.
More informationBIOL 221 Concepts of Botany Spring Water Relations, Osmosis and Transpiration
BIOL 221 Concepts of Botany Spring 2008 Topic 07: Water Relations, Osmosis and Transpiration A. Water Relations Water plays a critical role in plants. Water is the universal solvent that allows biochemical
More informationPlant Structure and Function
Plant Structure and Function A Meridian Biology AP Study Guide by John Ho and Tim Qi Plant Terms Growth: Growth Types Type Location Description Primary Primary Vertical growth (up-down), dominant direction
More informationStems and Transport in Vascular Plants. Herbaceous Stems. Herbaceous Dicot Stem 3/12/2012. Chapter 34. Basic Tissues in Herbaceous Stems.
Bud scale Terminal bud Stems and Transport in Plants One year's growth Terminal bud scale scars Axillary bud Leaf scar Node Internode Node Chapter 34 Lenticels Terminal bud scale scars Bundle scars A Woody
More informationWATER RELATIONS OF PLANTS
WATER RELATIONS OF PLANTS 1) The path of water from soil in to the xylem of the root is a) Soil root hair endodermis cortex pericycle xylem b) Soil root hair cortex endodermis pericycle Proto xylem meta
More informationSave My Exams! The Home of Revision For more awesome GCSE and A level resources, visit us at Transport in plants
Transport in plants Question Paper 1 Level A Level Subject Biology Exam Board OCR Topic Exchange and transport Sub-Topic Transport in plants Booklet Question Paper 1 Time Allowed: 75 minutes Score: / 62
More informationMULTIPLE CHOICE QUESTIONS
54 BIOLOGY, EXEMPLAR PROBLEMS CHAPTER 11 TRANSPORT IN PLANTS MULTIPLE CHOICE QUESTIONS 1. Which of the following statements does not apply to reverse osmosis? a. it is used for water purification. b. In
More information2018 Version. Photosynthesis Junior Science
2018 Version Photosynthesis Junior Science 1 Plants fill the role of Producers in a community Plants are special because they have leaves and are able to produce their own food by the process of photosynthesis
More informationTransport of Water and Solutes in Plants
Transport of Water and Solutes in Plants Bởi: OpenStaxCollege The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant. The
More informationTranslocation 11/30/2010. Translocation is the transport of products of photosynthesis, mainly sugars, from mature leaves to areas of growth and
Translocation Translocation is the transport of products of photosynthesis, mainly sugars, from mature leaves to areas of growth and storage. Phloem is the tissue through which translocation occurs. Sieve
More informationPage 1. Gross Anatomy of a typical plant (Angiosperm = Flowering Plant): Gross Anatomy of a typical plant (Angiosperm = Flowering Plant):
Chapter 43: Plant Form and Function Gross Anatomy of a typical plant (Angiosperm = Flowering Plant): Root System Anchor plant Absorb water / nutrients Store surplus sugars Transport materials from / to
More informationB2 Quick Revision Questions. B2 for AQA GCSE examination 2018 onwards
B2 Quick Revision Questions Question 1 Which raw materials are used in photosynthesis and what are the products of the reaction? Answer 1 Carbon dioxide Water Glucose Oxygen Question 2 What type of reaction
More informationTREES. Functions, structure, physiology
TREES Functions, structure, physiology Trees in Agroecosystems - 1 Microclimate effects lower soil temperature alter soil moisture reduce temperature fluctuations Maintain or increase soil fertility biological
More information