Cell Organelles

Front

What are vacuoles?

Back

Vacuoles are storage organelles in cells that store and package food, waste, and other substances.

Front

What is the function of the cell membrane?

Back

The cell membrane protects the cell and regulates what substances enter and leave the cell; it is mainly composed of lipids.

Front

What is the nucleus?

Back

The nucleus is the control center of the cell that directs all activities and contains the cell's genetic material.

Front

What is cytoplasm?

Back

Cytoplasm is the jellylike substance that fills the space between the cell membrane, organelles, and the nucleus.

Front

What are ribosomes?

Back

Ribosomes are small organelles that function as factories to make proteins; they can be found attached to the endoplasmic reticulum or floating in the cytoplasm.

Front

What is the role of Golgi bodies?

Back

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

Front

What is the function of mitochondria?

Back

Mitochondria are known as the powerhouse of the cell; they generate energy in the form of ATP through cellular respiration.

Front

What is the cell wall?

Back

The cell wall is a rigid outer layer found in plant cells that provides structure and protection.

Front

What is the endoplasmic reticulum (E.R.)?

Back

The endoplasmic reticulum is a network of membranes involved in protein and lipid synthesis; it comes in two forms: rough (with ribosomes) and smooth (without ribosomes).

Front

What is the nuclear envelope?

Back

The nuclear envelope is a double membrane that surrounds the nucleus and controls the movement of substances in and out of the nucleus.