Unit 2 Cells & Cell Systems Review

Front

What is a cell wall?

Back

A rigid outer layer found in plant cells that provides structure and support, not present in animal cells.

Front

What is the main difference between prokaryotes and eukaryotes?

Back

Prokaryotes do not have a nucleus, while eukaryotes do.

Front

What is a transport or channel protein?

Back

A type of protein that helps move substances across a cell membrane.

Front

What is diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is active transport?

Back

The movement of molecules across a cell membrane using energy, against their concentration gradient.

Front

What is endocytosis?

Back

The process by which a cell engulfs material from the outside environment.

Front

What is the sodium-potassium pump?

Back

A type of active transport that moves sodium out of the cell and potassium into the cell.

Front

What is the function of mitochondria?

Back

Mitochondria are the powerhouse of the cell, generating energy through cellular respiration.

Front

What are membrane-bound organelles?

Back

Organelles that are enclosed by membranes, found in eukaryotic cells.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.