Dr. Pucko Exam 3 Review

Light reactions occur

A) In the thylakoid membrane

B) In the cytoplasm

C) On the surface of chloroplasts

D) None of the above

A) In the thylakoid membrane

If a molecule loses H, it is said to be

A) An oxidizing agent

B) A reducing agent

C) Oxidized

D) Reduced

C) Oxidized

Which is NOT a reactant of photosynthesis?

A) Carbon dioxide

B) Light

C) Water

D) Oxygen

D) Oxygen

What is the role of the Calvin Cycle?

A) Converting light energy into chemical energy

B) Converting CO2 and sugar into chemical energy

C) Converting light energy into sugar

D) Converting CO2 and chemical energy into sugar

D) Converting CO2 and chemical energy into sugar

How many molecules of carbon dioxide do two molecules of glucose produce?

A) 3

B) 6

C) 12

D) Not enough information provided

C) 12

Carbon is more oxidized in

A) Carbon dioxide

B) Glucose

C) O2

D) Both A and C

A) Carbon dioxide

Carbon is more reduced in

A) Carbon dioxide

B) Glucose

C) O2

D) Both A and B

B) Glucose

The Calvin Cycle takes place in the

A) Lumen

B) Stroma

C) Cytoplasm

D) Cell Membrane

B) Stroma

Why does Chlorophyll donate electrons to NADP+?

NADP+ needs its energy replenished after coming back from the Calvin Cycle

Which is a product of photosynthesis?

A) CO2

B) Glucose

C) Oxygen

D) Both B and C

D) Both B and C

Which occurs first?

A) Photosystem I

B) Photosystem II

C) Both A and B

D) Neither A nor B

B) Photosystem II

Light Reactions produce _____ and _____ to be used in the Calvin Cycle

ATP and NADPH

The Calvin Cycle produces _____ and _____ to be used in Light Reactions

ADP and NADP

What is the role of ATP-synthase?

To continuously convert ADP to ATP

How does ATP-synthase convert ADP to ATP?

H+ ions flow across passively creating a concentration gradient as H+ ions flow from high to low concentration