Questions
21
In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
Answer: the stroma to the thylakoid space
22
Which of the following does not occur during the Calvin cycle?
Answer: release of oxygen
23
How is photosynthesis similar in C4 and CAM plants?
Answer: In both cases, rubisco is not used to fix carbon initially
24
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
Answer: H2O → NADPH → Calvin cycle
25
Why are C4 plants able to photosynthesize with no apparent photorespiration?
Answer: They use PEP carboxylase to initially fix CO2
26
In metabolic processes of cell respiration and photosynthesis, prosthetic groups such as heme and iron -sulfur complexes are encountered. What do they do?
Answer: both oxidize and reduce during electron transport
27
Conversion of pyruvic acid into ethyl alcohol is facilitated by the enzymes:
Answer: carboxylase and dehygrogenase
28
The final acceptor of electrons in the electron transport chain is
Answer: Oxygen
29
Classification of organisms as oxygenic or anoxygenic during photosynthesis is based on ______
Answer: The generation of oxygen
30
Name the mechanism which prevents photo-oxidative damage in plants?
Answer: Photoprotection
31
What is the location of photosynthetic pigment in an oxygenic photosynthetic organism?
Answer: Thylakoid membranes
32
Which of the following is an anoxygenic photosynthetic organism?
Answer: Green and Purple photosynthetic organism
33
Which of these features are not of chlorophyll?
Answer: It is water-soluble pigment
36
Name the pigment which is responsible for absorption of light in plants?
Answer: Chlorophyll
37
In bacteria name the colour of light which is responsible for photosynthesis?
Answer: Red
