Cell Transport Review #2

Front

What is osmosis?

Back

The diffusion of water across a semi-permeable membrane.

Front

What does active transport require?

Back

Energy.

Front

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

Back

Certain things can enter while others cannot.

Front

In a hypotonic solution, which way will water move?

Back

Water will move into the cell.

Front

If the concentration of sugar is higher inside the cell, what direction will water flow?

Back

Into the cell.

Front

What is diffusion?

Back

The movement of particles from an area of higher concentration to an area of lower concentration.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport does.

Front

What is a semi-permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is equilibrium in the context of cell transport?

Back

A state where the concentration of substances is equal on both sides of the membrane.

Front

What role do transport proteins play in cell membranes?

Back

They help move substances across the membrane that cannot pass through the lipid bilayer.