Cell Transport

Front

In passive transport, substances move across the cell membrane ________ the concentration gradient.

Back

DOWN

Front

What macromolecule is embedded into the lipid bilayer and helps to transport molecules?

Back

Protein

Front

The movement of materials that requires energy is called...

Back

active transport

Front

The movement of materials that does NOT require energy is called...

Back

passive transport

Front

Which describes a hypertonic environment?

Back

Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell.

Front

What is the primary function of the cell membrane?

Back

To regulate what enters and exits the cell.

Front

Define osmosis.

Back

The diffusion of water across a selectively permeable membrane.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to the inside of the cell, causing the cell to swell.

Front

What is the role of transport proteins in the cell membrane?

Back

To facilitate the movement of substances across the membrane.

Front

What is diffusion?

Back

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