BIO 172 Quiz 13 Questions with All
Correct Answers
When does a cell switch from cellular respiration to fermentation? - Answer-When
electron acceptors required by the electron transport chain are not available.
The pigment molecules responsible for photosynthesis are located in the - Answer-
thylakoid membrane
Why is NADH considered to have reducing power? - Answer-It donates electrons to
components of the electron transport chain.
What is a difference in the energy carriers used in plants vs animals? - Answer-Plants
use NADPH and NADH while animals only use NADH.
When rubisco binds oxygen as a substrate, a wasteful process occurs called - Answer-
photorespiration
During the light reactions of photosynthesis, in what chloroplast location (s) are are ATP
and NADPH synthesized? - Answer-Both are synthesized in the stroma.
Which of the following is not directly necessary to run the Calvin cycle?
ATP
CO2
NADPH
Oxygen - Answer-Oxygen
Which of the following does not occur during the light reactions of photosynthesis?
Electron transport
Photophosphorylation
Chemiosmosis
Carbon fixation - Answer-Carbon fixation
Which of the following statements about the electron transport chain (ETC) is true?
As electrons move through the ETC, they are moving from a high free energy state to a
lower free energy state.
All statements about the ETC are true.
Correct Answers
When does a cell switch from cellular respiration to fermentation? - Answer-When
electron acceptors required by the electron transport chain are not available.
The pigment molecules responsible for photosynthesis are located in the - Answer-
thylakoid membrane
Why is NADH considered to have reducing power? - Answer-It donates electrons to
components of the electron transport chain.
What is a difference in the energy carriers used in plants vs animals? - Answer-Plants
use NADPH and NADH while animals only use NADH.
When rubisco binds oxygen as a substrate, a wasteful process occurs called - Answer-
photorespiration
During the light reactions of photosynthesis, in what chloroplast location (s) are are ATP
and NADPH synthesized? - Answer-Both are synthesized in the stroma.
Which of the following is not directly necessary to run the Calvin cycle?
ATP
CO2
NADPH
Oxygen - Answer-Oxygen
Which of the following does not occur during the light reactions of photosynthesis?
Electron transport
Photophosphorylation
Chemiosmosis
Carbon fixation - Answer-Carbon fixation
Which of the following statements about the electron transport chain (ETC) is true?
As electrons move through the ETC, they are moving from a high free energy state to a
lower free energy state.
All statements about the ETC are true.
