Happy Thursday 3/13/2014 D3: Please have your ID ON Today, we begin the CELLS unit K W L : What do you already KNOW about cells? (dig around in your brain for those memories!) What do you WANT to know about cells? (really, what interests YOU?!) We ll fill in the L (learned) later!
Chapter 4: Cell Structure and Function
AWWWWwww, CELL!
4.1: History of Cell Biology
Cell: So, what s a cell?
Who? When? What? Hooke
Who? When? What? Hooke 1665 Light microscope Leeuwenhoek Cork drawings cells
Who? When? What? Hooke 1665 Light microscope Cork drawings cells Lueewenhoek 1673 1 st : living cells MADE microscopes Spirogyra!! Schleiden
Who? When? What? Hooke 1665 Light microscope Cork drawings cells Lueewenhoek 1673 1 st : living cells MADE microscopes Spirogyra!! Schleiden 1838 ALL PLANTS made of cells Schwann
Who? When? What? Hooke 1665 Light microscope Cork drawings cells Lueewenhoek 1673 1 st : living cells MADE microscopes Spirogyra!! Schleiden 1838 ALL PLANTS made of cells Schwann 1839 ALL ANIMALS made of cells Virchow
Who? When? What? Hooke 1665 Light microscope Cork drawings cells Lueewenhoek 1673 1 st : living cells MADE microscopes Spirogyra!! Schleiden 1838 ALL PLANTS made of cells Schwann 1839 ALL ANIMALS made of cells Virchow 1900 All cells come from pre-existing cells
Cell Theory HOW much work goes into making a theory???
Cell Theory
Developments in Cell Biology All due to invention of the...
Remember those characteristics of LIFE? 1. organized parts 2. obtain energy from surroundings 3. perform chem. Reactions (metabolism) 4. change over time (evolution); common history all are related 5. respond to environment 6. reproduce 7. homeostasis
p. 71 #1-6, 8
REVIEW What is a Cell? The smallest thing that can perform life processes Who was the first person to look at LIVING cells? Anton van Lueewenhoek Who was first to look at Dead Cells? Robert Hooke
REVIEW What is the cell theory? All plants are made of cells, animals, all cells come from cells What part did Schleiden plan in developing the Cell Theory? all plants are made of cells Schwann? all animals are made of cells Virchow? all cells come from cells
Calculating Magnification!!! A biologist s looking at a cell in the microscope & it s magnified 40 times. The cell in the photo is 2 mm in diameter What s the TRUE diameter of the cell in micrometers (um)? =2mm/40 = 0.05mm 0.05mm x (1000um/1mm) = 50 um
Yogurt! Mmmm! Observing Bacteria Cultures in Yogurt! Objective: Observe yogurt under a microscope and sketch your observations. SAFETY: Microscope handling, glassware safety, chemical safety
4.2: Intro to Cells
What the CELL?!
Cell Diversity Form follows Function!
Cell Shape Why the differences?
Cell Size Giraffe nerves...2 meters long Human egg cell.... But MOST are LIMITED BY:
SA : Vol
Small Objects have HIGHER SA: Vol = a good thing!!
Finishing up 4-2: Intro to Cells http://www.hancockwildlife.org/i ndex.php?topic=white-rock- Eagle1#CloseUp
3 Basic Parts of a Cell
3 Basic Parts of a Cell
Video: Write down cooooooool things you observe!
Two Basic Types of Cells
Prokaryotes vs. Eukaryotes http://my.hrw.com/sh2/sh07_10/student/flash/visual_concepts/60052.htm
Organization of Cells Colonies True Multicellularity Heirarchy:
Heirarchy of Organization
REVIEW What are the three basic parts of all cells? Plasma membrane, cytoplasm, Control Center What is the factor that limits cell size? Ratio b/w volume and surface area. Explain how the volume to surface area ratio limits cell size. If the vol. is too great the insufficient surface area cannot move materials efficiently across the cell membrane. Differences between pro & eukaryotic cells??
Prokaryotic Cell
Eukaryotic Cell
p. 76
Biobucks Due! Have your green sheet out & any items you re turning in today.
4-3: Cell Organelles & Features
What cell type has lots of organelles?? Has lots of membrane systems & membrane-bound organelles, too!
Plasma Membrane
Plasma Membrane
Plasma (cell) Membrane Structures: Functions:
Plasma Membrane Model!! Build a model of the plasma membrane with your partner
http://my.hrw.com/sh2/sh07_10/student/flash/visual_concepts/60058.htm
NUCLEUS Structures: Functions:
Mitochondrion (-ia, plural) Structures: Functions:
Ribosomes Structures: Functions:
p. 85 #1-2
E.R. Endoplasmic Reticulum Structures: Functions:
Golgi Apparatus Structures: Functions:
VESICLES Structures: Functions:
1. 2. 3. 4. 5.
p. 85 #3-6
Cytoskeleton Structures: Functions: Structures: Functions: Structures: Functions:
Cilia Flagella
Centrioles
Tour of a Virtual Cell: http://my.hrw.com/sh2/sh07_10/student/flash/virtual_investigations/hx/hxcsf_vi.html
p. 85 #1-6
Quiz Today! Turn in Vocab (4.1-4.3) & Study Guide
4-4: Plant Cells
PLANT CELL http://my.hrw.com/sh2/sh07_10/student/flash/visual_concepts/60069.htm
3 Features Unique to PLANT CELLS: 1. Structure: Function:
3 Features Unique to PLANT CELLS: 2. Structure: Function:
3 Features Unique to PLANT CELLS: 3. 3 types of plastids Structure: a. Function: b. c.
Comparing!
p. 90 #1, 4, 5, 7 Ch 4 Review & Vocab WILL be collected WEDNESDAY!!!!
1. 2. 3. 15. 4. 5. 6. 7. 8. 14. 13. 12. 9. 11. 10.
Ch 4 Review: #1-3,5-14,16-21,25,26,27