Photosynthesis Chemistry and Energy

What are the main components required for photosynthesis?

• Hydrogen, carbon, and electrons

• Oxygen, glucose, and sunlight

• Carbon dioxide, water, and sunlight

• Nitrogen, phosphorus, and potassium

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

What is the primary pigment involved in absorbing sunlight for photosynthesis?

• Xanthophyll

• Chlorophyll

• Anthocyanin

• Carotene

Tags

NGSS.HS-LS1-5

What is the first complex in the light-dependent reactions of photosynthesis?

• ATP synthase

• Cytochrome complex

• Photosystem II

• Photosystem I

What molecule is split to replenish the lost electron in photosystem II?

• Carbon dioxide

• Oxygen

• Water

• Glucose

Tags

NGSS.HS-LS1-5

What is the byproduct of water splitting in photosystem II?

• Carbon dioxide

• Glucose

• ATP

• Oxygen

What is the main purpose of the Calvin Cycle?

• To generate ATP and NADPH

• To fix carbon dioxide into organic molecules

• To produce oxygen

• To split water molecules

Tags

NGSS.HS-LS2-5

Which enzyme is responsible for fixing CO2 in the Calvin Cycle?

• RUBISCO

• NADP+ reductase

• Cytochrome complex

• ATP synthase

Tags

NGSS.HS-LS2-5

What does RUBISCO often mistakenly bind to, creating a toxic byproduct?

• Glucose

• Carbon dioxide

• Oxygen

• Water

What is the ultimate product of the Calvin Cycle?

• Oxygen

• Glucose

• Glyceraldehyde 3-phosphate (G3P)

• Ribulose bisphosphate (RUBP)

Tags

NGSS.HS-LS2-5

How many molecules of ATP and NADPH are needed to regenerate RUBP in the Calvin Cycle?

• 9 ATP and 6 NADPH

• 6 ATP and 6 NADPH

• 5 ATP and 3 NADPH

• 3 ATP and 2 NADPH