324 Cell Membrane and Transport Kanya Flashcard

Front

What is the function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What happens to a slug when salt is poured on it?

Back

Water will move out of the slug's cells and the cells will shrink.

Front

During osmosis, which way do water molecules move when a cell is in a hypertonic solution?

Back

Out of the cell, so the cell shrinks.

Front

What does it mean when the concentration of particles inside a cell is the same as outside?

Back

The cell is in equilibrium.

Front

What is the term for cell membrane transport that occurs without energy?

Back

Passive transport.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.

Front

Define osmosis.

Back

The diffusion of water molecules across a selectively permeable membrane.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to another solution.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to another solution.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a cell membrane via specific transmembrane proteins.