Cell Transport and Homeostasis Review

Front

What forms the two layers of the cell membrane?

Back

Phospholipids.

Front

Which term means 'water-fearing'?

Back

Hydrophobic.

Front

What is the maintenance of an organism’s internal environment called?

Back

Homeostasis.

Front

What does it mean that the cell membrane is selectively permeable?

Back

Certain things can enter while others cannot.

Front

What type of solution is a cell in if it is in a hypotonic environment?

Back

The cell is in a solution with a lower concentration of solutes compared to the inside of the cell.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and leaves.

Front

Define osmosis.

Back

The movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is a hypertonic solution?

Back

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

Front

What does it mean for a solution to be isotonic?

Back

The concentration of solutes is equal inside and outside the cell.