Question

What changes take place in the guard cells that cause the opening of stomata?

• A. Water enters the guard cells and they shrink
• B. Water comes out of the guard cells and they shrink
• C. Water enters the guard cells and they swell
• D. Water comes out of the guard cells and they swell

Answer 1

Answer:

C. Water enters the guard cells and they swell

• When water enters the guard cells, they swell and cause the opening of stomata.

• When water enters the guard cells, they swell and become turgid, causing the stomata to open.

• When water exits the guard cells, they become flaccid, and this reduction in pressure causes the stomata to close.