Light Dependent

What is the process where the energy in light is used to break up a molecule of water?

• hydrolysis

• photolysis

• glycolysis

• nicolysis

When electrons in the reaction-center chlorophyll become so excited; they escape to a nearby __________.

• primary electron acceptor molecule

• secondary electron acceptor molecule

• chloroplast

• cellular membrane

Tags

NGSS.HS-LS1-5

What are the products of the light-dependent reaction?

• Glucose

• ATP and NADPH

• Water and Oxygen

Which molecule absorbs the energy of a photon in photosynthesis?

• ATP

• glucose

• chlorophyll

• water

Tags

NGSS.HS-LS1-5

After the excited electrons are captured by the primary electron acceptor, water is split in a process known as what?

• photosynthesis

• photolysis

• chemiosmosis

• electron transport chain

After the electron from photosystem I is transferred to the primary electron acceptor, it is passed along the electron transport chain by the carrier

• Plastoquinone

• Plantacyanin

• Cytochrome complex

• Ferredoxin

Through the NADP+ reductase, the electrons' energy are transferred from ferredoxin to NADP+, the NADP+ required energy from how many electrons so that it can be reduced into NADPH?

• 1

• 2

• 3

• 0

Plants produce oxygen when they photosynthesize. Where does the oxygen come from?

• splitting water molecules

• ATP synthesis

• the electron transport chain

• chlorophyll

The thylakoid membrane becomes damaged, causing the inside of the thylakoid to mix with the stroma.

Which of the following processes is likely to be most affected by this damage?

• The reduction of NADP+ to NADPH

• Sunlight absorption by the chloroplasts

• The movement of electrons from photosystem II (PSII) to photosystem I (PSI)

• ATP synthesis

Tags

NGSS.HS-LS1-5

What role do electrons play in the formation of NADPH?

• Electrons from PS I cause the reduction of NADPH to NADP+

• Electrons from PSII cause the reduction of NADP+ to NADPH.

• Electrons from PS I cause the reduction of NADP+ to NADPH.

• Electrons are gained causing the oxidation of NADP+NADP+.