Photosystems

What supplies the electron that is lost in PS II?

• oxygen

• water

• glucose

• rubisco

Tags

NGSS.HS-LS1-5

What supplies the electrons that are lost in photosystem I (PSI)?

• the electrons from PS II

• water

• glucose

• oxygen

Tags

NGSS.HS-LS1-5

What is the purpose of splitting water in PS2 of the light dependent reaction?

• Provides e- for PS2 and H+ for the thylakoid space

• To produce Oxygen for animals

• There is no purpose

Water is split during

• photosystem 1 of the light dependent reaction

• photosystem 2 of the light dependent reaction

• calvin cycle

• cell respiration

What does light do when it strikes the chlorophyll molecules of photosystems I and II?

• Light causes glucose to be synthesized directly inside the chlorophyll molecules of the photosystems.

• Light causes electrons to get excited (gain energy) and travel down the electron transport chain embedded in the thylakoid membrane.

• Light causes the conversion of water into carbon dioxide, oxygen, and electrons.

• Light directly causes carbon dioxide to attach to RuBP during the carbon fixation stage of the Calvin Cycle.

Tags

NGSS.HS-LS1-5

What are the two products of the light reactions that are needed for the calvin cycle?

• NAD and NADPH

• NADP + and Glucose

• NADPH and ATP

• Oxygen and NADPH

Tags

NGSS.HS-LS1-5

Choose the statement that best describes light reaction.

• It converts CO2 to sugar molecule

• It converts light energy to chemical energy of ATP and NADPH

• It takes place in the stroma

Tags

NGSS.HS-LS1-5

What is the function of NADP+?

• It absorbs light

• It is an electron carrier

• It is a light-reflecting pigment

• It acts as long-term energy storage

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

• hydrolysis

• photolysis

• glycolysis

• nicolysis

clusters of chlorophyll and proteins in the thylakoid membrane

• light-dependent reaction

• pigments

• photosystems

• chloroplasts

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5