Cell Transport

Front

What is pinocytosis?

Back

Pinocytosis is a type of endocytosis where cells engulf liquids from their surroundings.

Front

What type of transport requires energy to move substances against the concentration gradient?

Back

Active Transport requires energy to move substances against the concentration gradient.

Front

What is the main characteristic of active transport?

Back

Active transport requires energy to move substances from areas of low concentration to areas of high concentration.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of molecules across a space.

Front

Which organelle controls what substances may enter or leave the cell?

Back

The cell membrane controls what substances may enter or leave the cell.

Front

What is osmosis?

Back

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

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is the role of the cell membrane in homeostasis?

Back

The cell membrane helps maintain homeostasis by regulating the entry and exit of substances.

Front

What is the difference between passive and active transport?

Back

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

Front

What is an example of a substance that uses facilitated diffusion?

Back

Glucose is an example of a substance that uses facilitated diffusion to enter cells.