Stomata Open When Guard Cells

question 79

Multiple Choice

Stomata open when guard cells

• A)sense an increase in CO2 in the air spaces of the leaf.
• B)open because of a decrease in turgor pressure.
• C)become more turgid because of an addition of K+, followed by the osmotic entry of water.
• D)close aquaporins, preventing uptake of water.
• E)accumulate water by active transport.

---

Definitions:

Business Operations

All the activities involved in the day-to-day running of a business that directly relate to its producing and delivering its products or services.