Cell Transport

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 happens to a red blood cell in distilled water?

Back

Water molecules will move into the red blood cell, causing it to swell.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the solute concentration is lower outside the cell than inside, leading to water entering the cell.

Front

What is phagocytosis?

Back

Phagocytosis is the process by which a cell engulfs solid particles, often referred to as 'cell eating'.

Front

What occurs when a red blood cell is placed in a hypotonic solution?

Back

The red blood cell will swell and may burst due to the influx of water.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

How does water move during osmosis?

Back

Water moves from an area of low solute concentration to an area of high solute concentration.

Front

What is the effect of a hypertonic solution on a cell?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

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 require energy and moves substances along their concentration gradient.

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates the movement of substances in and out of the cell, maintaining homeostasis.