Photosynthesis and Light Reactions Quiz

What is the primary function of chloroplasts in plant cells?

• To facilitate photosynthesis

• To transport water and nutrients

• To conduct cellular respiration

• To store energy in the form of glucose

Which molecule is reduced to form NADPH during the light reactions?

• Oxygen

• NADP+

• Carbon dioxide

• ATP

What is the role of chlorophyll in photosynthesis?

• To split water molecules

• To produce glucose

• To transport electrons

• To absorb light energy

What happens to electrons in chlorophyll when they are excited by light?

• They move to a higher energy level

• They are absorbed by water

• They are used to form glucose

• They are converted into ATP

Which photosystem is involved first in the non-cyclic electron flow?

• Photosystem I

• Neither photosystem

• Photosystem II

• Both photosystems simultaneously

What is the main purpose of the electron transport chain in photosynthesis?

• To generate oxygen

• To create an electrochemical gradient

• To produce glucose

• To absorb light energy

How is ATP synthesized during the light reactions?

• By reducing NADP+

• Via chemiosmosis

• Through the Calvin cycle

• By splitting water molecules

What is the Z scheme in photosynthesis?

• A pathway for glucose synthesis

• A model for electron flow

• A type of chlorophyll molecule

• A method of ATP production

What is the final electron acceptor in the light reactions?

• Oxygen

• NADP+

• Water

• ATP

What is produced as a waste product during the light reactions?

• Glucose

• Carbon dioxide

• NADPH

• Oxygen