1.Which of the following statements about chloroplasts is FALSE? a.The thylakoid

Question

1.Which of the following statements about chloroplasts is FALSE?

a.The thylakoid membrane is permeable to protons.

b.The thylakoid membrane contains the photosynthetic electron transport components.

c.Protons are pumped from the stroma into the thylakoid space.

d.ATP is synthesized in the stroma.

e.Chloroplasts divide to form new chloroplasts.

2.Glycolysis has to “prime” the substrate glucose before it can subsequently extract energy from the pathway. What is the compound it uses to do this?

a.NADH.     b. NAD+.       c. GTP.            d. ADP.           e. ATP

Explanation / Answer

Answer:

1). a.The thylakoid membrane is permeable to protons.

Explanation:

The thylakoid membrane is permeable to protons hence protons are pumped through ATPsynthase enzyme.

The thylakoid membrane of the chloroplast pumps protons from the stroma into the thylakoid space (interior of the thylakoid), which functions as the H+ reservoir. All electron-transport processes occur in the thylakoid membrane to make ATP, H+is pumped into the thylakoid space, and a backflow of H+ through an ATP synthase then produces the ATP in the chloroplast stroma. Chloroplasts divide to form new chloroplasts.

2). e. ATP

Explanation:

This phase requires an investment of 2ATP moles to activate (or prime) the glucose mole and prepare it for its cleavage into two 3- carbon pieces

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