BioInteractive Photosystems I and II

Question 1

What is the primary electron donor in Photosystem II?

Accepted Answer

Water

Answer

NADPH

Answer

Plastocyanin

Answer

Ferredoxin

Question 2

What is the designation of the reaction center chlorophyll in Photosystem II?

Accepted Answer

P680

Answer

P700

Answer

P650

Answer

P720

Question 3

What is the designation of the reaction center chlorophyll in Photosystem I?

Accepted Answer

P700

Answer

P680

Answer

P650

Answer

P730

Question 4

In what order do electrons flow through the two photosystems during non-cyclic electron flow?

Accepted Answer

PSII → PSI

Answer

PSI → PSII

Answer

PSI → PSII → PSI

Answer

PSII → PSII → PSI

Question 5

Which photosystem contains the oxygen-evolving complex that splits water?

Accepted Answer

Photosystem II

Answer

Photosystem I

Answer

Both photosystems equally

Answer

Neither photosystem

Question 6

Where are both Photosystem I and Photosystem II located within the chloroplast?

Accepted Answer

Thylakoid membrane

Answer

Outer envelope membrane

Answer

Stroma

Answer

Inner envelope membrane

Question 7

What is the primary function of the antenna complex (light-harvesting complex) in photosystems?

Accepted Answer

Capture light energy and transfer it to the reaction center

Answer

Split water molecules

Answer

Produce ATP via chemiosmosis

Answer

Synthesize NADPH directly