AP - Photosynthesis

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

• CO2 and glucose

• H2O and O2

• electrons and H+

• ATP and NADPH

Where does the Calvin cycle take place?

• stroma of the chloroplast

• thylakoid membrane

• outer membrane of the chloroplast

• interior of the thylakoid membrane

When oxygen is released as a result of photosynthesis, it is a direct by-product of

• reducing NADP+

• splitting water molecules

• chemiosmosis

• electron transfer in photosystem II and I

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

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

Which of the following statements about the relationship between photosynthesis and cellular respiration is true?

• cellular respiration is anabolic and photosynthesis is catabolic.

• In photosynthesis the biochemical pathways of cellular respiration occurs in the ribosomes.

• Cellular respiration occurs only in animals and photosynthesis occurs only in plants.

• Cellular respiration is catabolic and photosynthesis is anabolic.

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

In photosynthetic cells, synthesis of ATP by chemiosmosis occurs during

• photosynthesis only

• cellular respiration only

• both photosynthesis and cellular respiration

• photophosphorylation only