Photosynthesis

What are the roles of ATP and NADPH in photosynthesis?

• 1. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce sugars.

• 1. ATP and NADPH are forms of chemical energy produced from the light independent reactions, to be used in the light dependent reactions that produce sugars.

• 1. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce proteins.

• 1. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that use sugars as reactants.

In which compartment of the plant cell do the light-independent reactions of photosynthesis take place?

• 1. mesophyll

• 1. outer membrane

• 1. stroma

• 1. thylakoid

What is a part of grana?

• 1. the Calvin cycle

• 1. the inner membrane

• 1. stroma

• 1. thylakoids

What are two major products of photosynthesis?

• 1. chlorophyll and oxygen

• 1. oxygen and carbon dioxide

• 1. sugars/carbohydrates and oxygen

• 1. sugars/carbohydrates and carbon dioxide

Which color spectrum of the light does plants use for photosynthesis? Select all that applies

• blue

• green

• red

• white

• yellow

What is the function of carotenoids in photosynthesis?

• 1. They supplement chlorophyll absorption.

• 1. They are visible in the fall during leaf color changes.

• 1. They absorb excess energy and dissipate it as heat.

• 1. They limit chlorophyll absorption.

Which of the following structures is not a component of a photosystem?

• antenna molecule

• primary electron acceptor

• reaction center

• mobile electron carrier

Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place?

• 1. CO₂

• 1. RuBisCO

• 1. RuBP

• 1. 3-PGA

Which order of molecular conversions is correct for the Calvin cycle?

• 1. RuBP+G3P→3-PGA→sugar

• 1. RuBisCO→CO2→RuBP→G3P

• 1. RuBP+CO2→[RuBisCO]3-PGA→G3P

• 1. CO2→3-PGA→RuBP→G3P

Which statement correctly describes carbon fixation?

• 1. the conversion of CO2 into an organic compound

• 1. the use of RuBisCO to form 3-PGA

• 1. the production of carbohydrate molecules from G3P

• 1. the use of ATP and NADPH to reduce CO2