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Respiration is the process by which the body creates energy by breaking down nutrients. This can either happen in the presence of oxygen, or without it. The key difference between the two processes are...
Similarities:
Both have a nucleus
Both have cytoplasm
Both have a cell membrane
Both contain mitochondria
Both con...
DNA is the molecule within cells that contains genetic information, in the form of a sequence of bases that form a code that makes up a protein. DNA is a polymer, meaning that it is a macromolecule (la...
The first step of urine formation is ultrafiltration. Blood passes through a network of capillaries in the kidney called the glomerulus. It is filtered into the Bowman’s capsule (the f...
An enzyme is a protein catalyst.
A catalyst is a substance which alters the rate of a chemical reaction. (So it can speed up a chemical reaction).
The key...
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