Cell Transport---Legacy

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur via passive or active mechanisms.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to move out of the cell and leading to cell shrinkage.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell and leading to cell swelling.

Front

Define isotonic solution.

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell as water enters due to osmosis.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will shrink as water leaves the cell due to osmosis.

Front

What role do carbohydrates play in the cell membrane?

Back

Carbohydrates in the cell membrane help cells identify one another and facilitate cell recognition.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the significance of the cell membrane's selective permeability?

Back

Selective permeability allows the cell to maintain homeostasis by controlling what enters and exits the cell.

Front

Explain the process of active transport.

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to move molecules from low to high concentration.