contestada

How many statements are true:
A) With regards to cyclic electron flow, no water is oxidised and no oxygen evolution occur
B) Cyclic electron transport occur predominantly in the membrane of grana thylakoid.
C) Cytochrome b6/f complexes present only in grana thylakoid
D) Oxygen evolving complex are associated with PS1

(1) One
(2) Two
(3) Three
(4) Four

Respuesta :

atruong50

Answer:

(3) Three

Explanation:

Let's evaluate the statements, shall we?

A) With regards to cyclic electron flow, no water is oxidized, and no oxygen evolution occurs.

- True. In cyclic electron flow, only photosystem I (PSI) is involved, and there is no production of NADPH or oxygen evolution.

B) Cyclic electron transport occurs predominantly in the membrane of grana thylakoid.

- True. Cyclic electron flow mainly occurs in the thylakoid membrane of the chloroplasts, particularly in the grana where the photosystems are located.

C) Cytochrome b6/f complexes are present only in grana thylakoid.

- False. While cytochrome b6/f complexes are essential components of the electron transport chain in photosynthesis, they are found in both grana and stroma thylakoid membranes.

D) Oxygen-evolving complex is associated with PSII.

- True. The oxygen-evolving complex is part of photosystem II (PSII) and is responsible for the oxidation of water molecules during the light-dependent reactions of photosynthesis.

Based on the given content, the number of true statements are:

- A) True

- B) True

- C) False

- D) True

Hope this helped! :)

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