Unit 2 Review Cells and Viruses

Front

What is the cell theory?

Back

The cell theory states that: 1) All living organisms are made up of cells, 2) Cells are the basic unit of life, and 3) All cells arise from pre-existing cells.

Front

What is a prokaryote?

Back

A prokaryote is a type of cell that does not have a nucleus or other membrane-bound organelles. Examples include bacteria.

Front

What is a eukaryote?

Back

A eukaryote is a type of cell that has a nucleus and membrane-bound organelles. Examples include plant and animal cells.

Front

What is a virus?

Back

A virus is a tiny non-living particle that invades and multiplies inside a living cell.

Front

What is an organ system?

Back

An organ system is a group of organs that work together to perform complex functions in an organism.

Front

What are organelles?

Back

Organelles are specialized structures within a cell that perform specific functions, such as mitochondria for energy production.

Front

What is the function of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, providing protection and support.

Front

What is the difference between plant and animal cells?

Back

Plant cells have a cell wall, chloroplasts, and large vacuoles, while animal cells do not.

Front

What is the role of ribosomes?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.