AP Biology Photosynthesis Part 3.

Slides:

Advertisements

Similar presentations

Chapter 10: Photosynthesis

Advertisements

Alternative mechanisms of carbon fixation in plants C4 and CAM pathway.

C4 Photosynthesis Improving upon photosynthetic efficiency.

 Allow for the entry of CO 2 and exit of water vapor (transpiration).  On sunny, hot, dry days, guard cells close to preserve water, but this poses.

Photorespiration AP BIO. Review Stomates need to be OPEN for gas exchange to occur in the leaf However, open stomates can lead to dehydration due to transpiration.

Photosynthesis: Variations on the Theme

Lecture Oct 10, 2005 Photosynthesis II. Calvin Cycle.

The Calvin Cycle & Alternative Carbon fixers

AP Biology Photosynthesis: Variations on the Theme.

C 3, C 4 and CAM plants. Alternative Methods of Carbon Fixation Rubisco – the double agent! Normally rubisco adds CO 2 to RuBP but when O 2 is very plentiful.

PHOTOSYNTHESIS. Calvin Cycle Carbon Fixation (light independent rxn). Carbon Fixation (light independent rxn). C 3 plants (80% of plants on earth). Occurs.

Ch. 10 Diagrams Photosynthesis. (a) Plants (b)Multicellular alga (c)Unicellular protists (d) Cyanobacteria (e)Purple sulfur bacteria 10  m 1  m 40 

Calvin Cycle and Photorespiration. Calvin Cycle Where does the Calvin Cycle occur? In the stroma What goes into the Calvin Cycle? ATP, NADPH, Carbon Dioxide.

Alternative Pathways in Photosynthesis. Figure A review of photosynthesis.

Alternate Mechanisms of Carbon Fixation Also Known As… Why can’t they just leave good enough alone. Let’s cut them all down.

Organisms capture and store free energy for use in biological processes Calvin Cycle.

Alternative Methods of Carbon Fixation Photorespiration & C 3 Plants Photorespiration & C 3 Plants C 4 Photosynthesis & Plants C 4 Photosynthesis & Plants.

AP Biology Remember what plants need…  Photosynthesis  light reactions  light H2OH2O  Calvin cycle  CO 2 What structures have plants evolved to.

AP Biology Photosynthesis: Variations on the Theme.

Absorption of water and minerals Water and minerals enter the plant through the epidermis of the root, through the cortex, and into the stele (vascular.

Fig Wavelength of light (nm) (b) Action spectrum (a) Absorption spectra (c) Engelmann’s experiment Aerobic bacteria RESULTS Rate of photosynthesis.

Chp Photosynthesis. LE 10-2 Plants Unicellular protist Multicellular algaeCyanobacteria Purple sulfur bacteria 10 µm 1.5 µm 40 µm.

AP Biology Photosynthesis: Variations on the Theme.

© 2014 Pearson Education, Inc. Chapter Opener 7-1.

AP Biology Photosynthesis: Variations on the Theme.

Other Types of Photosynthesis C 4 Photosynthesis and CAM Photosynthesis.

LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert.

Photosynthesis, Environment & Adaptation C3 vs. C4 vs. CAM Photosynthesis.

Alternative Mechanisms of Carbon Fixation (5.4). RuBisCO RuBisCO is the most abundant protein on Earth catalyzes the first reaction of the Calvin cycle.

PACKET #31 CHAPTER #10 Photorespiration. Introduction Plants that use the Calvin Cycle to fix carbon, in the molecule sugar, are called C 3 plants. During.

PhotosynthesisPhotosynthesisPhotosynthesisPhotosynthesis.

AP Biology Photosynthesis Part 3.

Photosynthesis and Plants  6CO 2 + 6H 2 O + sunlight C 6 H 12 O 6 + 6O 2  Epidermis with cuticle  palisade mesophyll – parenchymal cells – primary sites.

C4 Photosynthesis AP Biology Unit 4 Review: C3 Photosynthesis During “regular” photosynthesis, CO 2 is trapped into a 3-carbon compound by Rubisco 

Photosynthesis Part 5 Page 118.

NOTES: CH 10, part 3 – Calvin Cycle (10.3) & Alternative Mechanisms of C-Fixation (10.4)

Ch 10 Calvin Cycle, Photorespiration, C3/C4/CAM plants.

Review Calvin Cycle begins with adding a CO2 to RuBP This reaction is catalyzed by the an enzyme. Can you name it?

Fig Light Reactions: Photosystem II Electron transport chain Photosystem I Electron transport chain CO 2 NADP + ADP P i + RuBP 3-Phosphoglycerate.

School of Sciences, Lautoka Campus BIO509 Lecture 25: Photorespiration

Chapter 10: Photosynthesis

Photosystems Photosystem (fig 10.12) = rxn center surrounded by several light-harvesting complexes Light-harvesting complex = pigment molecules bound to.

Rate of Photosynthesis in Response to Differing Percentages of Atmospheric Oxygen.

Photosynthesis Part 2 The Calvin Cycle.

Variations of Photosynthesis

ADAPTIONS TO TEMPERATURE AND DROUGHT

Concept 10.3: The Calvin cycle uses the chemical energy of ATP and NADPH to reduce CO2 to sugar The Calvin cycle, like the citric acid cycle, regenerates.

Light Reaction Review:

C4 Photosynthesis AP Biology Unit 4.

Photosynthesis: Calvin Cycle

Alternative Methods of Carbon Fixation

Alternatives in carbon fixation Page

Calvin Cycle, C4 and CAM Plants

Leaves and Photosynthesis

The Calvin Cycle Anabolic reaction (builds sugar)

AP Biology Photosynthesis Part 3.

Today: -Photosynthesis! -Lunch -Lab 3.

A2E Today: 1. Introduction to Photosynthesis 2. Lunch 3. Guest Speaker (noon; Green Room)

Alternative Pathways & Photosynthesis Ms. Day AP Biology

AP Biology Photosynthesis Part 3.

AP Biology Photosynthesis Part 3.

Cyclic Electron Flow Cyclic electron flow uses only photosystem I and produces ATP, but not NADPH Cyclic electron flow generates surplus ATP, satisfying.

You Try! With your group, draw the stages of Photosynthesis, adding as much detail as you can without consulting your notes/text.

LE 10-3 Leaf cross section Vein Mesophyll Stomata CO2 O2

Fig Figure 10.1 How can sunlight, seen here as a spectrum of colors in a rainbow, power the synthesis of organic substances?

The Calvin-Benson Cycle.

AP Biology Photosynthesis Part 3.

AP Biology Photosynthesis Part 3.

Alternative Methods of Carbon Fixation

Chapter 10 Photosynthesis.

Presentation transcript:

AP Biology Photosynthesis Part 3

Photosynthesis Light Reaction

Photosynthesis Calvin Cycle

Calvin Cycle step 1

Calvin Cycle step 2

Calvin Cycle step 3

C4 Plants and Photorespiration Mesophyll cell Mesophyll cell CO2 Photosynthetic cells of C4 plant leaf PEP carboxylase Bundle- sheath cell The C4 pathway Oxaloacetate (4 C) PEP (3 C) Vein (vascular tissue) ADP Malate (4 C) ATP C4 leaf anatomy Pyruvate (3 C) Bundle- sheath cell Stoma CO2 CALVIN CYCLE Sugar Vascular tissue

CAM Plants and Photorespiration Sugarcane Pineapple C4 CAM CO2 CO2 Mesophyll cell CO2 incorporated into four-carbon organic acids (carbon fixation) Night Organic acid Organic acid Bundle- sheath cell CO2 CO2 Day Organic acids release CO2 to Calvin cycle CALVIN CYCLE CALVIN CYCLE Sugar Sugar Spatial separation of steps Temporal separation of steps

Stomata of Leaves & Transpiration