Proteins That Are Involved in the Regulation of the Cell

question 24

Multiple Choice

Proteins that are involved in the regulation of the cell cycle and that show fluctuations in concentration during the cell cycle are called ________.

• A) ATPases
• B) kinetochores
• C) kinases
• D) estrogen receptors
• E) cyclins

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Definitions:

Plasma Membrane

A semipermeable lipid bilayer that surrounds the cytoplasm of cells, controlling the movement of substances in and out of the cell.

Membrane Potential

A difference in electric charge between the two sides of a membrane.

Membranes

Thin layers of tissue that cover surfaces, lines cavities, and separates or connects spaces or organs in a living organism.

Compartments

Distinct sections within spaces or structures, typically used to separate or organize different functions or components.