1: Which molecule associated with photorespiration is toxic to plant cells?? A:

Question

1: Which molecule associated with photorespiration is toxic to plant cells??

A: phosphoglycolate

B: glycolate

C: rubisco

D: 3PGA

2: The primary purpose of the light-dependent reactions is to ____.

A: Transfer electrons to the primary electron acceptors

B: provide electron and energy for the light independent

C: generate O2, gas

D: make ADP in cyclic photophosphorylation

E: produce sugars such as glucose

3: In the light-dependent reactions of photosynthesis, an excited electron from photosystem II is passed along an electron transport chain to ____.

A: oxygen

B: water

C: photosystem I

D: NAD+

E: NADH

4: Where does photosynthesis take place in cyanobacteria?

A: plasma membrane

B: mitochondria

C: chloroplast

D: cytosol

E: golgi bodies

5: Photosynthesis must provide a source of electrons and H+ because ____.

A: atmospheric CO2, must be oxidized by adding electrons

B: hydrogen ions and electrons are converted into oxygen gas

C: hydrogen ions and electrons react to produce hydrogen gas

D; hydrogen atoms are added to oxygen to form water

E: CO2, must be reduced to produce gas

6:   If a plant synthesized a molecule of sugar that has 12 carbons, how many turns of the Calvin cycle would be needed?

A: 2

B: 24

C: 6

D: 3

E: 12

Explanation / Answer

1. A.phosphoglycolate

2. B. provide electron and energy for light independent.

3. C. PS-1

4. D. hydrogen atoms are added to oxygen to form water

6. E. 12

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