Cell Membrane Review

Front

In passive transport, the concentration gradient goes from..

Back

High to low.

Front

The ability of the cell (plasma) membrane to control what substances can pass through is referred to as

Back

Semi-permeable.

Front

What is the name for a molecule that has a polar head region and a hydrophobic tail region?

Back

Amphipathic.

Front

Osmosis is the diffusion of __________.

Back

Water.

Front

A type of active transport that brings particles into a cell when the cell membrane encloses a particle to make a vesicle is called

Back

Endocytosis.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

Define diffusion.

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What does it mean for a membrane to be selectively permeable?

Back

It allows certain substances to pass while blocking others.

Front

What is the role of cholesterol in the cell membrane?

Back

To maintain fluidity and stability of the membrane.

Front

What are the two main types of transport across the cell membrane?

Back

Passive transport and active transport.