CPEMembTransport2020

Front

What happens to a cell in a hypotonic solution?

Back

A cell will grow.

Front

How can a cell take in more sodium if the sodium concentration inside is greater than outside?

Back

Active transport.

Front

What is the function of cholesterol in a plasma membrane?

Back

To control the effect of temperature changes.

Front

What is simple diffusion?

Back

It goes directly through the phospholipid bilayer.

Front

Which part of a phospholipid is hydrophilic?

Back

The phosphate 'head'.

Front

Define hypotonic solution.

Back

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

Front

What is active transport?

Back

The movement of molecules across a membrane using energy, against their concentration gradient.

Front

What is the role of the phospholipid bilayer in cell membranes?

Back

It acts as a barrier to protect the cell and regulate what enters and exits.

Front

Explain the term 'osmosis'.

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport does.