L5: Photosynthesis

Which pigment is primarily responsible for absorbing light during photosynthesis?

• Carotenoids

• Chlorophyll

• Xanthophyll

• Anthocyanin

Tags

NGSS.HS-LS1-5

What is the main product of the Calvin Cycle?

• Oxygen

• Glucose

• ATP

• NADPH

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which factor does NOT directly affect the rate of photosynthesis?

• Light intensity

• Carbon dioxide concentration

• Soil type

• Temperature

What role does water play in photosynthesis?

• It is a source of carbon

• It is a source of electrons and protons

• It absorbs light energy

• It acts as a catalyst

How does high temperature generally affect the rate of photosynthesis?

• Increases it indefinitely

• Decreases it indefinitely

• Increases it up to a point, then decreases it

• Has no effect

Which molecule is regenerated in the Calvin Cycle to allow the cycle to continue?

• RuBP (Ribulose bisphosphate)

• ATP

• NADPH

• Glucose

What is photorespiration?

• The process of converting light energy into chemical energy

• The process of fixing carbon dioxide into organic molecules

• The process where oxygen is consumed and carbon dioxide is released

• The process of water splitting

Which of the following is NOT a condition necessary for optimal plant growth?

• Adequate light

• Sufficient water

• High levels of oxygen

• Proper nutrient availability

What is the primary function of chlorophyll in photosynthesis?

• To absorb carbon dioxide

• To absorb light energy

• To produce ATP

• To release oxygen

Tags

NGSS.HS-LS1-5

Which stage of photosynthesis involves the splitting of water molecules?

• Calvin Cycle

• Light-dependent reactions

• Photorespiration

• Glycolysis