Cell Membrane & Cell Transport Test Bell B

Front

What happens to a plant cell when placed in a solution with a lower concentration of solute than its own?

Back

The plant cell will swell due to osmosis, as water moves into the cell.

Front

What is the primary function of the cell membrane?

Back

The cell membrane serves as a protective outer layer that controls what enters and leaves the cell.

Front

What term describes a solution that has a higher concentration of solute compared to the inside of a cell?

Back

Hypertonic.

Front

What term describes solutions that have the same solute concentration?

Back

Isotonic.

Front

What type of transport moves substances from an area of low concentration to an area of high concentration?

Back

Active transport.

Front

What is osmosis?

Back

Osmosis is the movement of water across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solute compared to the inside of a cell, causing the cell to swell.

Front

What role do transport proteins play in the cell membrane?

Back

Transport proteins facilitate the movement of substances across the cell membrane, either passively or actively.

Front

What is the significance of the fluid mosaic model of the cell membrane?

Back

The fluid mosaic model describes the cell membrane as a dynamic structure with various proteins embedded in or associated with a flexible lipid bilayer.