Unit 3: Cells Flashcard 2 Pulse Check - 24

Front

What is the process called when molecules move from an area of higher concentration to an area of lower concentration?

Back

Diffusion

Front

In a side view of a cell, which side of the cell membrane is a hypertonic solution if side A has a higher concentration of solutes than side B?

Back

Side A

Front

What is a barrier that surrounds a cell or organelle and allows the passage of some materials across it?

Back

Semi-permeable membrane

Front

What type of solution has a lower concentration of solutes, resulting in the movement of water towards it in osmosis?

Back

Hypotonic solution

Front

What is the process called when molecules move across a semi-permeable membrane with the help of transport proteins?

Back

Facilitated diffusion

Front

What is the term for a solution that has the same concentration of solutes as another solution?

Back

Isotonic solution

Front

What is the main function of a semi-permeable membrane in a cell?

Back

To regulate the movement of substances in and out of the cell.

Front

What is the difference between active transport and passive transport?

Back

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

Front

What happens to a cell placed in a hypertonic solution?

Back

The cell will lose water and shrink.

Front

What is osmosis?

Back

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