B2 transpiration and stomata

Question 1

What is transpiration?

Answer 1

Transpiration is the process by which water vapor is lost from the plant’s surface, primarily through small openings called stomata.

Question 2

True or False: Stomata are found on the upper surface of leaves only.

Answer 2

False: Stomata can be found on both the upper and lower surfaces of leaves.

Question 3

Fill in the blank: The primary function of stomata is to allow the exchange of ______ and ______.

Answer 3

gases; water vapor

Question 4

What factors can affect the rate of transpiration?

Answer 4

Factors include temperature, humidity, wind speed, and light intensity.

Question 5

Multiple Choice: Which of the following is NOT a function of stomata? A) Gas exchange B) Water retention C) Transpiration D) Photosynthesis

Answer 5

B) Water retention

Question 6

What is the role of guard cells in relation to stomata?

Answer 6

Guard cells control the opening and closing of stomata to regulate gas exchange and water loss.

Question 7

True or False: Transpiration is an active process that requires energy.

Answer 7

False: Transpiration is a passive process driven by evaporation.

Question 8

Short Answer: Why is transpiration important for plants?

Answer 8

Transpiration helps in nutrient uptake, cooling the plant, and maintaining turgor pressure.

Question 9

Fill in the blank: The loss of water vapor through stomata is influenced by ______ and ______.

Answer 9

environmental conditions; plant water status

Question 10

Multiple Choice: Which of the following conditions would likely increase the rate of transpiration? A) High humidity B) Low temperature C) High wind speed D) Low light intensity

Answer 10

C) High wind speed