Which Element Is Correctly Matched with Its Major Function in Plants

question 20

Multiple Choice

Which element is correctly matched with its major function in plants?

• A) phosphorus − alters membrane permeability
• B) sulfur − essential part of chlorophyll
• C) potassium − opens and closes stomata
• D) carbon − maintains turgidity of cells
• E) calcium − involved in nitrogen-fixation

---

Definitions:

Civil Rights

Legal provisions and protections relating to personal liberty and the right to participate in civic life without discrimination or repression.

Republican Party

A major political party in the United States, also known as the GOP (Grand Old Party), traditionally advocating for conservatism and fiscal policies.

Congressional Reconstruction

The period from 1867 to 1877 during which the U.S. Congress controlled the Reconstruction of the Southern States following the American Civil War, emphasizing civil rights and voting rights for freedmen.