Photosynthesis

What is the main function of chloroplasts in a leaf?

• a) Storage of water

• b) Production of oxygen

• c) Absorption of sunlight

• d) Regulation of temperature

Which part of the chloroplast is responsible for the light-dependent reactions of photosynthesis?

• a) Stroma

• b) Thylakoids

• c) Granum

• d) Stomata

What is the primary function of stomata in a leaf?

• d) Protection against predators

• c) Exchange of gases

• b) Release of oxygen

• a) Absorption of water

Where does the Calvin cycle of photosynthesis take place within the chloroplast?

• a) Stroma

• c) Granum

• d) Stomata

• b) Thylakoids

What is the main function of the thylakoid membrane in a chloroplast?

• a) Storage of glucose

• b) Absorption of carbon dioxide

• c) Production of ATP

• d) Regulation of water content

Which part of the chloroplast contains the chlorophyll pigment?

• d) Stomata

• a) Stroma

• b) Thylakoids

• c) Granum

How does the carbon cycle relate to the process of photosynthesis?

• d) Photosynthesis converts carbon dioxide into water

• c) Photosynthesis has no impact on the carbon cycle

• b) Photosynthesis removes carbon dioxide from the atmosphere

• a) Photosynthesis releases carbon dioxide into the atmosphere

What environmental factor can affect the rate of photosynthesis by limiting the availability of carbon dioxide?

• c) Humidity

• b) Temperature

• a) Light intensity

• d) Water availability

How does an increase in light intensity affect the rate of photosynthesis?

• c) Has no effect on the rate of photosynthesis

• d) Stops the process of photosynthesis

• a) Increases the rate of photosynthesis

• b) Decreases the rate of photosynthesis

What effect does a decrease in temperature have on the rate of photosynthesis?

• c) Has no effect on the rate of photosynthesis

• b) Decreases the rate of photosynthesis

• a) Increases the rate of photosynthesis

• d) Stops the process of photosynthesis