Unit 1: Cells, Tissues, Organs, and Systems

Front

What is the Cell Theory?

Back

The Cell Theory states that all living things are composed of cells, all cells come from pre-existing cells, and the cell is the basic unit of life.

Front

What are unicellular organisms?

Back

Unicellular organisms are composed of only one cell, such as bacteria, protists, and some fungi.

Front

What are multicellular organisms?

Back

Multicellular organisms are composed of many specialized cells, such as plants, animals, and some fungi.

Front

What is the function of the nucleus?

Back

The nucleus controls the activities of the cell and is considered the control center or brain of the cell.

Front

What do chromosomes contain?

Back

Chromosomes contain the genetic material of the cell, strands of DNA, and are located inside the nucleus.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of materials (nutrients and waste) in and out of the cell.

Front

What is cytoplasm?

Back

Cytoplasm is a watery fluid that allows materials to be transported in the cell and stores materials.

Front

What is the function of a vacuole?

Back

A vacuole is filled with fluid and stores water and nutrients such as sugar and minerals.

Front

What is a flagellum?

Back

A flagellum is a 'tail' that allows cells to move, found on some cells, and means 'little whip.'

Front

What are cilia?

Back

Cilia are 'tiny hairs' that allow cells to move, found on some cells, and means 'eyelash.'