Select the phrases that describe the plasma membrane. a. creates a barrier between the inside and outside of the cell b. provides a rigid structure that allows the cell to hold its shape c. separates the nucleus and the cytosol d. regulates transport of molecules into and out of the cell

The correct phrases that describe the plasma membrane are: a and d.

Explanation:

All cells contain a membrane that separates and protects their chemical components from the extracellular environment. The plasma membrane is the structure that defines the cell. It works as a barrier between the interior of the cell and its environment as it allows the entry and exit of molecules through it. This passage of molecules is a phenomenon called permeability. The cell membrane is characterized by being a dynamic structure, fluidity being one of its most important characteristics.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )