AGENDA ABSENT TUE 1/15 week-2 HONORS TOPIC: REV photo basics / PRE-LAB OBJ : 4-6 DO NOW: WRITE the chemical equation for PHOTOSYNTHESIS EXT: DUE DATE: DW: 8.2 PRELAB [including VIDEO walk through]?? ------------------------------------------------------------------------------- -REV/COMPLETE 8.2 APP NTS -8.2 PRELAB HANDOUTS to PICK-UP: -8.2 LAB TURN IN to ABS box: - SEMINAR : - BEFORE SCHOOL/RAVEN-50: DW- 8.2 APP NTS EXIT: CIRCLE LEVEL of UNDERSTANDING [see slide]
TUE 1/15 week-2 TOPIC: REV photo basics / PRE-LAB OBJ : 4-6 AGENDA ABSENT DO NOW: WRITE the chemical equation for PHOTOSYNTHESIS EXT: DUE DATE: DW: NONE ------------------------------------------------------------------------------- -REV/COMPLETE 8.2 APP NTS -8.2 PRELAB HANDOUTS to PICK-UP: -8.2 LAB TURN IN to ABS box: - SEMINAR : - BEFORE SCHOOL/RAVEN-50: DW- 8.2 APP NTS EXIT: CIRCLE LEVEL of UNDERSTANDING [see slide]
UNIT OBJECTIVES 8.2 PHOTOSYNTHESIS 4- IDENTIFY the components of the chemical formula for photosynthesis [molecules/reactants/products] 5- SUMMARIZE the function of the chloroplast during the two phases of photosynthesis 6- DESCRIBE and DIAGRAM the process of photosynthesis on the cellular & organismal levels
TUE PEER # Write this in RED PEN 8.2 APP NTS RED X in BOX DW GRADE: 2 1.5 1 0
DW -GRADE RUBRIC
RED PEN out & ready 8.2 APP NT REVIEW
OVERVIEW OF PHOTOSYNTHESIS LIST organisms that carry out photosynthesis -photoautotrophs LIST the organelle where photosynthesis takes place -chloroplast thylakoid stroma IDENTIFY the chemical equation for photosynthesis: 6CO 2 6H 2 O 6O 2 C 6 H 12 O 6 + + [REACTANTS] light [PRODUCTS] IDENTIFY the energy form used during photosynthesis chemcial light IDENTIFY the energy form produced during photosynthesis chemcial light
8.2 APP NTS
IMPORTANT STRUCTURES -INTERNAL STRUCTURE: leaf tissue CHLOROPLAST
IMPORTANT STRUCTURES- CHLOROPLAST CHLOROPLAST -located in the cell of leaves -found in the middle layer
IMPORTANT STRUCTURES- CHLOROPLAST THYLAKOIDS - coins -phase I GRANUM- stack of coins STROMA- space -phase II INNER/OUTER MEMBRANE -phospholipid bilayer -carbs transported across membrane
DRAW
IMPORTANT STRUCTURES- SURFACE STOMATAopenings in leaf allow exchange of water/gases GUARD CELLSopen & close stomata by changing shape Photosynthesis Animation Open Closed
IMPORTANT STRUCTURES- PIGMENTS PIGMENTS -light absorbing colored molecules -found in thylakoids of chloroplast CHLOROPHYLL -major light absorbing pigment in plants -gathers sunlight -absorbs light in all wavelengths [violet-blue] -EXCEPT GREEN / Reflects GREEN
IMPORTANT STRUCTURES- PIGMENTS PIGMENTS -light absorbing colored molecules -found in thylakoids of chloroplast CHLOROPHYLL -major light absorbing pigment in plants -gathers sunlight -absorbs light in all wavelengths [violet-blue] -EXCEPT GREEN / Reflects GREEN
FACTORS THAT AFFECT THE RATE OF PHOTOSYNTHESIS 1-TEMPERATURE Ex-molecule move quickly/speed up -temp 35 destroy enzyme/rate 2-LIGHT INTENSITY Ex-reach max rate 3-CO 2 CONCENTRATION Ex-increase 4-WATER Ex-shortage slows/stomata close -rate of gas exchange 5-MINERALS Ex-Mg/N chlorophyll
PHASE I- PHASE ONE: LIGHT REACTIONS light-dependent NAME: Light reactions OCCURS IN: thylakoids STARTS WITH: light energy / H 2 O / [ADP/NADP+] PRODUCES: -O 2 [wastes] -ATP / NADPH [energy storing molecules]
ETC
PHASE ONE: LIGHT REACTIONS -sunlight splits water molecules-h 2 O -excites electrons ~ e - gain ENERGY -releases oxygen gas- O 2 [waste product] -H + (protons) needed to make food [glucose] PHOTOSYSTEM II ELECTRON CARRIER- -accepts/transports high energy e - -convert ADP and NADP + energy carriers ATP and NADPH PHOTOSYSTEM I
PHASE TWO: CALVIN CYCLE PHASE 2-light-independent NAME: CALVIN CYCLE OCCURS IN: stroma STARTS WITH: CO 2 ATP [energy] PRODUCES: NADPH [high energy electrons] -GLUCOSE [6 carbon sugar] -ADP / NADP + [return to light-dependent phase] The Calvin Cycle
PHASE ONE/PHASE TWO IMPORTANCE -O 2 -GLUCOSE
EXIT CIRCLE-level of understanding of today s objective Q s / clarifications- EXIT- REFLECT & COMPLETE OBJ 4-6