Guard Cells Do Which of the Following

question 29

Multiple Choice

Guard cells do which of the following?

• A) protect the endodermis
• B) accumulate K⁺ and close the stomata
• C) contain chloroplasts that import K⁺ directly into the cells
• D) guard against mineral loss through the stomata
• E) help balance the photosynthesis-transpiration compromise

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Definitions:

Investment

The act of allocating resources, usually money, with the expectation of generating an income or profit.

Government Expenditures

The total amount spent by the government for its operations, public services, and social welfare programs.

Aggregate Spending

The total spending on goods and services in an economy at a given overall price level and in a given time period.

Marginal Propensity

The ratio of change in an economic variable, such as consumption or saving, to a change in another, like income.