etAP Photosynthesis Diagrams 10.13.25

Which of the following events occurs in the light reactions of photosynthesis?

• NADP+ is produced
• ATP is consumed to yield ADP
• carbon dioxide is fixed in organic molecules
• light is absorbed and funneled to reaction-center chlorophyll a

Tags

NGSS.HS-LS1-5

Which of the following is directly associated with Photosystem I?

• harvesting light energy to make ATP
• receiving electrons from the thylakoid membrane ETC
• generation of molecular oxygen
• extraction of hydrogen electrons from the splitting of water

What is the primary function of cyclic electron flow?

• to produce additional NADPH
• to produce additional ATP
• to produce additional oxygen
• to produce additional carbon dioxide

In a plant cell, where are ATP synthase complexes located?

• thylakoid membranes only
• inner mitochondrial membranes only
• thylakoid membrane and inner mitochondrial membranes
• thylakoid membrane and plasma membranes

Where are the molecules of the electron transport chain associated with photophosphorylation located in plant cells?

• thylakoid membanes of chloroplasts
• stroma of chloroplasts
• matrix of mitochondria
• outer membrane of chloroplasts

What is the primary function of the Calvin cycle?

• regenerate ATP for use in the light reactions of photosynthesis
• produce carbon dioxide for use in the light reactions of photosynthesis
• produce oxygen by oxidizing water
• produce simple sugars from carbon dioxide

Tags

NGSS.HS-LS1-6

Where do the enzymatic reactions of the Calvin cycle take place?

• stroma of the chloroplast
• thylakoid membranes
• matrix of the mitochondria
• thylakoid space

In C3 photosynthesis, the reactions that require ATP take place in

• the light reactions alone
• the calvin cycle only
• both the light reactions and the calvin cycle
• the citric acid cycle

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 Calvin cycle returns ADP, ℗i, and NADP+ to the light reactions.
• The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.
• The light reactions supply the Calvin cycle with CO2 to produce sugars, and the Calvin cycle supplies the light reactions with sugars to produce ATP.
• The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP.

In chemiosmosis in mitochondria, protons flow from the intermembrane space into the matrix, whereas in chemiosmosis in chloroplasts, protons flow from

• stroma into the cytosol
• stroma to the thylakoid space
• thylakoid space to the stroma
• intermembrane space to the stroma