HB BIO CH 7 Passive and Active Transport

Front

What is the difference in the concentration of solutes between the inside and outside of the cell called?

Back

Concentration gradient.

Front

What substance is commonly transported directly through the cell membrane?

Back

Oxygen.

Front

In which type of solution will water move into a cell?

Back

Hypotonic solution.

Front

What do active transport cellular pumps require?

Back

ATP, integral proteins, and are important for nerve function.

Front

What type of solution are the cells in Block B if they are in a hypotonic solution?

Back

Hypotonic.

Front

Define passive transport.

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the role of ATP in active transport?

Back

ATP provides the energy needed for the transport of substances against their concentration gradient.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to the inside of the cell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.