Biology Cell Unit Review

Front

What is osmosis and how does it affect cell size?

Back

Osmosis is the movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. If water moves out of the cell, the cell will shrink.

Front

What is the function of the nucleolus in a cell?

Back

The nucleolus is an organelle found inside the nucleus that produces ribosomes.

Front

What is one job that proteins do NOT have in the body?

Back

Storing genetic information.

Front

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

Back

The Golgi apparatus is responsible for packaging and shipping proteins and lipids within the cell.

Front

What are carbohydrates and why are they important for living organisms?

Back

Carbohydrates are organic compounds that serve as the main source of energy for living things.

Front

Define diffusion in the context of cellular processes.

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, which can occur across cell membranes.

Front

What is the structure and function of the cell membrane?

Back

The cell membrane is a phospholipid bilayer that protects the cell and regulates the movement of substances in and out of the cell.

Front

What are the main differences between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and various organelles.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

Explain the significance of ATP in cellular processes.

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells, providing energy for various biochemical reactions.