Cell Transport

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in large molecules or particles by engulfing them in a membrane. This process requires energy.

Front

What role does the cell membrane play in a cell?

Back

The cell membrane acts as a barrier and a gatekeeper, controlling what enters and exits the cell to maintain homeostasis.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to flow into the cell and potentially making it swell.

Front

What is simple diffusion?

Back

Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy.

Front

What is an 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 is exocytosis?

Back

Exocytosis is the process by which cells expel large molecules or particles by vesicles fusing with the cell membrane, releasing their contents outside the cell.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is osmosis?

Back

Osmosis is the diffusion 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 function of vacuoles in cells?

Back

Vacuoles are storage organelles that hold various substances, including nutrients, waste products, and water, helping to maintain cell structure.

Front

What is the difference between passive and active transport?

Back

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