AP Biology Unit 2: Cell Structure and Function Exam Review

Front

What is the thin, flexible barrier that surrounds all cells?

Back

Cell membrane

Front

What is the process called when water diffuses through the cell membrane along its own concentration gradient?

Back

Osmosis

Front

What type of transport is exocytosis classified as?

Back

Active Transport

Front

What regulates what enters and leaves the cell and also protects and supports the cell?

Back

Cell membrane

Front

What is a major cause of the size limits for certain types of cells?

Back

The need for sufficient surface area to support the cell's metabolic needs.

Front

What is the primary function of the cell membrane?

Back

To regulate the movement of substances in and out of the cell.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What is the role of the Golgi apparatus in a cell?

Back

To modify, sort, and package proteins and lipids for secretion or delivery to other organelles.

Front

What is the function of the endoplasmic reticulum (ER)?

Back

To synthesize proteins (rough ER) and lipids (smooth ER) and transport them within the cell.

Front

What is the significance of surface area to volume ratio in cells?

Back

A higher surface area to volume ratio allows for more efficient exchange of materials with the environment.