Cell Membrane & Transport

Front

What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy by the cell.

Front

Does Passive Transport require cell energy?

Back

No, passive transport does NOT require cell energy.

Front

What is Active Transport?

Back

Active transport is the movement of substances across a cell membrane using energy, typically in the form of ATP.

Front

What is the main difference between Active and Passive Transport?

Back

Active transport uses ATP (energy) while passive transport does not require energy.

Front

What does it mean for a cell membrane to be selectively permeable?

Back

It means that certain substances can enter or leave the cell while others cannot.

Front

What happens to a cell in a Hypotonic solution?

Back

A cell in a hypotonic solution will swell as water enters the cell.

Front

What is a Hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes outside the cell than inside, causing water to leave the cell.

Front

What is an Isotonic solution?

Back

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

Front

What occurs during Osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is the role of transport proteins in Active Transport?

Back

Transport proteins help move substances across the cell membrane against their concentration gradient using energy.