Photosynthesis and the Light Reactions

Where do the light reactions occur in the chloroplast?

• Stroma

• Thylakoid Disks

• Cell wall

• Cytoplasm

Tags

NGSS.HS-LS1-5

What are the primary actions in photosystem II (choose all that apply)

• Absorb light energy

• Produce ATP

• Splits water to form oxygen, hydrogen and electrons

• Energize electrons

• Produce Carbon Dioxide

Tags

NGSS.HS-LS1-5

What are the primary functions of photosystem I ?

• Absorb light energy

• Produce ATP

• Split water into hydrogen, oxygen and electrons

• Energize electrons

• Produce CO₂

Tags

NGSS.HS-LS1-5

What are the roles of the electron transport chain between Photosystem II and Photosystem I in the light reactions?

• Produce a Hydrogen Ion (Proton) Gradient

• Split water

• Transfer electrons

• Absorb light energy

What are the roles of the electron transport chain a the end of Photosystem I in the light reactions?

• Produce a Hydrogen Ion (Proton) Gradient

• Split water

• Transfer electrons

• Produce ATP

• Form NADPH from NADP

What are the main products of the light reactions?

• Oxygen

• Glucose

• NADPH

• ADP

• ATP

Tags

NGSS.HS-LS1-5

What are the main materials used the light reactions?

• Oxygen

• Glucose

• Water

• Sunlight

• ATP

Tags

NGSS.HS-LS1-5

What is the function of ATP Synthase enzyme in the light reactions?

• Absorb light energy

• Produce ATP from ADP

• Split water

• Transfer electrons

What happens to the energized electrons from photosystem I?

• They move to photosystem III

• They move to photosystem II

• They split water

• They reduce NADP+ to form NADPH

What is produced by the light reactions that is important for animals?

• Oxygen

• Glucose

• NADPH

• ADP

• All of these are important

Tags

NGSS.HS-LS1-5