Photosynthesis

What is the primary pigment involved in photosynthesis?

• melanin

• chlorophyll

• hemoglobin

• carbon dioxide

Where does the light-dependent reaction take place in the chloroplast?

• Nucleus

• Thylakoid membrane

• Stroma

• Cell wall

What are the two main products of the light-dependent reaction?

• Glucose and Oxygen

• Chlorophyll and Sunlight

• ATP and NADPH

• Carbon Dioxide and Water

What is the primary function of the Calvin cycle?

• To convert oxygen into sugar using the energy from sunlight

• To convert nitrogen into sugar using the energy from sunlight

• To convert carbon dioxide into sugar using the energy from sunlight

• To convert water into sugar using the energy from sunlight

What gas is used as a substrate in the Calvin cycle?

• hydrogen

• carbon dioxide

• nitrogen

• oxygen

What is the role of ATP and NADPH in the Calvin cycle?

• Store sunlight

• Provide energy and reducing power

• Produce carbon dioxide

• Convert water into glucose

What is the overall chemical equation for photosynthesis?

• 6CO2 + 6H2O + light energy → C6H12O6 + 6O2

• 2CO2 + 2H2O + light energy → C3H6O3 + 2O2

• 4CO2 + 4H2O + light energy → C4H8O4 + 4O2

• 8CO2 + 8H2O + light energy → C8H16O8 + 8O2

What are the two stages of photosynthesis?

• Light-dependent reactions and light-independent reactions (Calvin cycle)

• Dark-dependent reactions and dark-independent reactions

• Water-dependent reactions and water-independent reactions

• Oxygen-dependent reactions and oxygen-independent reactions

What is the role of water in the light-dependent reaction?

• Water provides electrons to replace those lost in photosystem II.

• Water acts as a catalyst to speed up the reaction

• Water produces glucose as a byproduct

• Water absorbs light energy to initiate the reaction

How does the structure of a chloroplast support its function in photosynthesis?

• The thylakoid membranes and stroma provide separate spaces for the light-dependent and light-independent reactions of photosynthesis to occur.

• The thylakoid membranes and stroma are not involved in photosynthesis

• The chloroplast structure inhibits the process of photosynthesis

• The chloroplast structure has no impact on photosynthesis