Referring to Figure 10.3, oxygen would inhibit the CO2 fixation reactions in

(image of C4 plant)

Cell II only

Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?

The light reactions provide ATP and NADPH to the Calvin cycle, and the cycle returns ADP, Pi, and NADP+ to the light reactions.

Name a product of the Calvin cycle.

Sugar

For the following questions, compare the light reactions with the Calvin cycle of photosynthesis in plants: produces NADPH

ligt reactions alone

What are the products of the light reactions that are subsequently used by the Calvin cycle?

ATP and NADPH

Synthesis of ATP by the chemiosmotic mechanism occurs during

both photosynthesis and respiration

________ reactions of photosynthesis generate NADPH and ATP to carry solar energy.

The light-dependent reactions

The conversion of light energy into chemical energy occurs in a ________ inside chloroplasts.

photosystem

Which of the following statements best describes the relationship between photosynthesis and respiration?

Respiration is the reversal of the biochemical pathways of photosynthesis.

In any ecosystem, terrestrial or aquatic, what group(s) is (are) always necessary?

autotrophs

CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they

fix CO2 into organic acids during the night.

What are the products of the light reactions that are subsequently used by the Calvin cycle?

ATP and NADPH

The sugar that results from three "turns" of the Calvin cycle is glyceraldehyde-3-phosphate (G3P). Which of the following is a consequence of this?

NOT G3P is easier for a plant to store.

Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?

The light reactions provide ATP and NADPH to the Calvin cycle, and the cycle returns ADP, Pi, and NADP+ to the light reactions.

In autotrophic bacteria, where are the enzymes located that can carry on organic synthesis?

along the inner surface of the plasma membrane

Plastids are storage organelles. A chloroplast is a type of plastid. What does a chloroplast store?

chlorophyll

Synthesis of ATP by the chemiosmotic mechanism occurs during

both photosynthesis and respiration

The chemical reactions of photosynthesis occur in which cellular organelle?

Cholorplasts

Some bacteria are photosynthetic. Part of the definition of a prokaryote is that they have no membrane-bound organelles, including chloroplasts. Explain how bacteria carry out photosynthesis without chloroplasts.

they still have thylakoids, they are just not compartmentalized into chloroplasts

Which group includes photosynthetic members?

bacteria, plants, and protists

The light reactions of photosynthesis ultimately convert low-energy molecules of ________ into high-energy molecules of ________.

NOT NADP+; NADPH and NOT "neither of these are correct"

What is the role of light in photosynthesis?

it energizes electrons

Carotenoids are often found in foods that are considered to have antioxidant properties in human nutrition. What related function do they have in plants?

They dissipate excessive light energy.

Organize the following steps of the light reaction in order.

NOT Absorb sunlight, produce high-energy electron carriers, split water, produce oxygen

Which of the following sequences correctly represents the flow of electrons during photosynthesis?

H2O → NADPH → Calvin cycle

Reduction of NADP+ occurs during

photosynthesis.

What is the role of chloroplasts in animals?

None, as animals do not have chloroplasts

During a process called photoact, ________ give up an electron as a part of the light-dependent reactions.

chlorophylls

Which of the following does not occur during the Calvin cycle?

release of oxygen

What is the primary function of the Calvin cycle?

synthesize simple sugars from carbon dioxide

Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?

ATP and NADPH

How is photosynthesis similar in C4 and CAM plants?

In both cases, rubisco is not used to fix carbon initially.