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WorksheetsPHOTOSYNTHESIS 2
Total questions: 10
Worksheet time: 3mins
Main products of the Calvin Cycle
Oxygen, NADP+, ADP
Glucose, CO2, ADP
ADP, NADP+, Glucose
ATP, NADPH, Oxygen
CAM and C4 Plants each prevent Photorespiration by...
Storing CO2 in a form that can be used during times their stomata are closed.
Keeping their stomata open at all times to prevent low CO2 levels.
A special carrier protein that prevents the entrance of Oxygen into leaves.
Altering (alosteric inhibition) the enzyme RUBISCO to prevent photorespiration.
Why photorespiration occurs when the concentration of O2 is higher than the concentration CO2?
Rubisco has higher affinity to O2
Rubisco has higher affinity to CO2
CO2 act as competitive inhibitor
CO2 can bind to Rubisco
What is the similarity between CAM pathway and C3 pathway?
Both occur in mesophyll cells
Both occur in bundle sheath cells
Both occur in during day time
Both occur in during night time
Why photorespiration is wasteful?
Phosphoglycolate breakdown into CO2 without producing organic molecule.
Phosphoglycolate is a high energy molecule
Photorespiration increase the production of Glyceraldehyde-3-phosphate by 40%
Why malate is stored in vacuole in CAM plant?
To be decarboxylated during the day
To prevent decrease in pH in cytoplasm
To be decarboxylated during night
To be transported to bundle sheath cell
