Guard Cells Do Which of the Following

question 107

Multiple Choice

Guard cells do which of the following?

• A)protect the endodermis
• B)accumulate K⁺ in order to close the stomata
• C)contain chloroplasts that import K⁺ directly into the cells
• D)help balance the photosynthesis-transpiration compromise

---

Definitions:

Permafrost

A layer of soil or rock beneath the Earth's surface that remains frozen for two or more consecutive years, primarily found in polar regions.

Carbon Stores

refer to reservoirs, both natural and artificial, that accumulate and hold carbon-containing chemical compounds for an indefinite period.

Overturn

The process of mixing in a stratified fluid, where warmer, less dense material moves upwards and cooler, denser material sinks.

Temperate Zone

A climate zone located between the tropic and polar regions of Earth, characterized by moderate temperatures.