LIGHT DEPENDENT REACTION

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Biology

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12th Grade

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Medium

WC LIM

Used 11+ times

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7 Slides • 14 Questions

Multiple Choice

The light dependent reactions occur on the ________ while the Calvin cycle occurs in the ________.

stroma of chloroplast; thylakoid membranes

thylakoid; stroma of chloroplast

thylakoid membranes; stroma of chloroplast

cytoplasm; thylakoid membrane

Multiple Choice

The primary pigment in the Photosystem I is

P680

P700

P600

P780

Multiple Choice

Electrons are excited by energy absorbed by __

water

oxygen

proteins in the reaction center

chlorophyll and accessory pigments

Multiple Choice

Electrons are excited in what molecule of the reaction center?

Electron transport chain

Primary electron acceptor

Chlorophyll a

Accessory pigments

Multiple Choice

What causes electron deficiency in the reaction centre of Photosystem II?

The excitation of electron at the reaction centre.

The formation of NADPH.

The split of water molecules.

The transfer of electron to the Photosystem I.

Multiple Choice

What supplies the electron that is lost in PSII?

Water

Plastoquinone

Plastocyanin

Ferredoxin

Multiple Choice

During non-cyclic photophosphorylation, what supplies the electron that is lost in PS I?

Water

PS II

PS I

Ferredoxin

Multiple Choice

ATP is created during the light reactions of photosynthesis in a manner that is similar to cellular respiration. How is this accomplished?

by the creation of a water molecule by joining protons and electrons.

by a proton concentration gradient and ATP synthase.

by the splitting of a water molecule and movement of electrons through ATP synthase.

by the energy derived from photosystems I and II.

Multiple Choice

Cytochrome complex is a proton pump that pump proton from __ into __.

thylakoid space; stroma of chloroplast

stroma of chloroplast; thylakoid space

thylakoid membrane; stroma of chloroplast

stroma of chloroplast; thylakoid membrane

Multiple Choice

Hydrogen ions diffuse from __ into __ by __ via ATP synthase.

thylakoid space; stroma of chloroplast; chemiosmosis

stroma of chloroplast; thylakoid space; chemiosmosis

thylakoid membrane; stroma of chloroplast; proton pump

stroma of chloroplast; thylakoid membrane; proton pump

Multiple Choice

During non-cyclic photophosphorylation, what supplies the electron that is lost in PS I?

Water

PSII

PSI

Plastocyanin

Multiple Choice

Cyclic photophosphorylation results in the formation of

ATP only

ATP and NADPH

NADPH

ATP, NADPH and oxygen

Multiple Choice

What are the products of light dependent reaction in photosynthesis?

ATP, carbon dioxide and water.

ATP, NADP⁺ and oxygen.

ATP, NADPH and oxygen.

ATP, carbon dioxide and glucose.

Multiple Choice

Which of the following processes are involved in the light dependent reactions?

I. Carbon fixation.

II. Chemiosmosis.

III. Reduction of NADP⁺.

IV. Regeneration of RuBP.

I only

I and III only

II and III only

I, II, III and IV

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