Unit 2.2 The Cell

Front

What is osmosis?

Back

The movement of water molecules from an area of high concentration to an area of low concentration across a semipermeable membrane.

Front

What happens to a cell when water moves out of it during osmosis?

Back

The cell shrinks.

Front

What is the function of the Rough Endoplasmic Reticulum (RER)?

Back

To process the proteins made by the ribosomes.

Front

What is the role of ATP in cells?

Back

ATP provides energy for various cellular processes.

Front

Which bond of the ATP molecule is broken to release energy?

Back

The bond labeled A.

Front

What is the cell theory?

Back

The cell theory states that all living organisms are made of one or more cells, cells are the basic unit of structure and function in living things, and all cells come from pre-existing cells.

Front

Which statement is NOT part of the cell theory?

Back

All cells contain a nucleus.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is facilitated diffusion?

Back

A process that allows substances to cross membranes with the assistance of special proteins.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.