CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

ETC

Which stateme...

Question

Which statement describes the functioning of photosystem II?

A

Light energy excites electrons in the electron transport chain in a photosynthetic unit.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

The excitation is passed along to a molecule of P700 chlorophyll in the photosynthetic unit.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

The P680 chlorophyll donates a pair of protons to NADPH, which is thus converted to NADP+

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

The electron vacancies in P680 are filled by electrons derived from water.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
The electron vacancies in P680 are filled by electrons derived from water.

When light falls in photosystem II, electrons get excited and are transported through an electron transport chain to photosystem I. Water is split, oxygen is released and electrons are transferred to photosystem II.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Z-scheme shows the non-cyclic electron flow of light reaction in oxygenic photosynthetic organisms. According to the Z-scheme, choose the correct statement(s) :
I.

P_{680}^{+}

P_{680}

molecule that lost its electron. It has the maximum reduction potential.
II.

P_{680}^{*}

P_{680}

molecule after absorption of the light energy. It has the lowest reduction potential
III. Final electron acceptor of PS I is Fe-S centre
IV. Flow of high energy electron in the electron transport chain creates a pH difference between the chloroplast stroma and thylakoid lumen

Q. Z-scheme shows the non-cyclic electron flow of light reaction in oxygenic photosynthetic organisms. According to the Z-scheme, choose the correct statement(s) :
I.

P_{680}^{+}

P_{680}

molecule that lost its electron. It has the maximum reduction potential.
II.

P_{680}^{*}

P_{680}

molecule after absorption of the light energy. It has the lowest reduction potential
III. Final electron acceptor of PS I is Fe-S centre
IV. Flow of high energy electron in the electron transport chain creates a pH difference between the chloroplast stroma and thylakoid lumen

Q. Electrons from excited chlorophyll molecule of photosystem- II are accepted first by

Q. Electrons from excited chlorophyll molecule of photosystem II are accepted first by

Electrons from an excited chlorophyll molecule of photosystem II are accepted first by

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Light Dependent Reactions

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon