AP Biologyeasymcq1 pt

A cell is experiencing stress due to a lack of essential nutrients. Based on the data, which of the following is a primary mechanism by which the cell responds to this stress?

A.D) The cell decreases protein synthesis and increases degradation to conserve energy and resources.

B.C) The cell upregulates the expression of genes involved in stress response, such as HIF-1α.

C.B) The cell activates the p53 protein, which halts cell cycle progression and promotes DNA repair.

D.A) The cell undergoes apoptosis to eliminate damaged cells and maintain tissue homeostasis.

Explanation

Core Concept

When a cell is experiencing stress due to a lack of essential nutrients, it will activate pathways that conserve energy and resources. This includes decreasing protein synthesis and increasing degradation to prevent unnecessary energy expenditure. (Concept: Cell Communication) The primary reason this is true is that the cell must balance its energy demands with its available resources to survive.

A cell is experiencing stress due to a lack of essential nutrients. Based on the data, which of the following is a primary mechanism by which the cell responds to this stress?

Explanation

Core Concept

Correct Answer