Biology 101 Chapter 7 Quiz

What are organisms called that produce their own food through photosynthesis?

• Heterotrophs

• Decomposers

• Autotrophs

• Carnivores

Which of the following is a byproduct of photosynthesis?

• Carbon dioxide

• Water

• Oxygen

• Nitrogen

What is the role of chloroplasts in flowering plants?

• They absorb water from the soil.

• They carry out photosynthesis.

• They transport nutrients.

• They store energy.

Where does carbon dioxide enter the leaf?

• Through the roots

• Through the stem

• Through the stomata

• Through the petals

What is produced in the stroma during photosynthesis?

• Oxygen

• Water

• Sugar (C6H12O6)

• Carbon dioxide

What do light reactions require to occur?

• Darkness

• Water only

• Solar Energy

• Soil nutrients

What is the main function of the Calvin cycle reactions?

• To produce oxygen

• To produce carbohydrates

• To absorb sunlight

• To release energy

What is the role of pigments in plants?

• They absorb all wavelengths of light.

• They reflect all wavelengths of light.

• They absorb certain wavelengths of light.

• They transmit all wavelengths of light.

What color does chlorophyll primarily reflect?

• Red

• Blue

• Green

• Yellow

Which accessory pigments absorb light in the violet-blue-green range?

• Chlorophyll a

• Chlorophyll b

• Carotenoids

• Xanthophylls