Plant Gas Exchange and Transport Quiz

What is the primary function of stomata in plant leaves?

• To absorb nutrients from the soil

• To facilitate gas exchange

• To transport water throughout the plant

• To store energy

Which gases are primarily exchanged through the stomata?

• Oxygen and nitrogen

• Carbon dioxide and oxygen

• Hydrogen and methane

• Nitrogen and methane

What is the role of the xylem in plants?

• To transport sugars from the leaves to other parts of the plant

• To transport water and minerals from the roots to the leaves

• To store nutrients

• To facilitate gas exchange

What is the main function of phloem in plants?

• To transport water from the roots to the leaves

• To transport sugars and nutrients from the leaves to other parts of the plant

• To provide structural support

• To absorb carbon dioxide

How does temperature affect the rate of gas exchange in leaves?

• Higher temperatures decrease the rate of gas exchange

• Lower temperatures increase the rate of gas exchange

• Higher temperatures increase the rate of gas exchange

• Temperature has no effect on gas exchange

What happens to stomata during the night in most plants?

• They open to allow gas exchange

• They close to conserve water

• They remain unchanged

• They release stored nutrients

Which of the following best describes the process of transpiration?

• The movement of sugars through the phloem

• The loss of water vapour from the aerial parts of the plant

• The absorption of nutrients from the soil

• The exchange of gases through the stomata

Which part of the plant is primarily responsible for the uptake of water and minerals?

• Leaves

• Stems

• Roots

• Flowers

Which of the following structures in plants is primarily responsible for photosynthesis?

• Roots

• Flowers

• Stems

• Leaves

What role do guard cells play in the functioning of stomata?

• They absorb nutrients from the soil

• They open and close the stomata

• They store energy for the plant

• They transport water to the leaves