Cell Transport

Front

What is Active Transport?

Back

Active Transport is the movement of solutes against the concentration gradient, requiring energy (ATP) to pump substances across a membrane.

Front

What is Passive Transport?

Back

Passive Transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of high water concentration to an area of low water concentration.

Front

How does water move during Osmosis?

Back

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

Front

What role does the cell membrane play in homeostasis?

Back

The cell membrane controls what substances may enter or leave the cell, helping to maintain homeostasis.

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 gradient.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of substances during transport.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What is the function of transport proteins?

Back

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

Front

What is the significance of the selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass while blocking others, crucial for maintaining cellular homeostasis.