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Biological Molecules

Life itself builds upon biological molecules: Carbohydrates, proteins and lipids (fats).

Types of Cells

Cells are the basic unit of all lifeforms. There are many different types of cells with many different functions.

Inside Cells

Cells are made up of many different structures with very specific functions.

Membranes and Transport

The nature of cell membranes and transport processes allow the cell to control the movement of substances in and out, for life to function.

Cellular Respiration

Respiration inside cells is a chemical reaction that occur all the time to transfer energy from nutrients into Adenosine Triphosphate (ATP).

Studying Cells

Microscopes have allowed us to magnify the view of very small cell structures that we otherwise would not be able to see.

Stem Cells

Stem cells allow for organisms to grow and develop cells of different types.


Enzymes are typically proteins that speed up chemical reactions within cells.

Cell Division

Cells divide in order to grow and develop, which is part of the cell cycle.