Disease

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Cellular Respiration

The metabolic processes that produce energy by converting glucose and oxygen into carbon dioxide and water.

Monomer

A small molecule that can join together with other small molecules to form a polymer.

Polymer

A large molecule made up of repeating units (monomers) connected by covalent bonds.

Ecosystem

A biological community of interacting organisms and their physical environment.

Homeostasis

The ability of an organism to maintain stable internal conditions despite changes in the external environment.

Mutation

A change in the DNA sequence that can lead to changes in the structure and function of proteins.

Natural Selection

The process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

Photosystem

A complex of proteins and pigments that plays a critical role in the light-dependent reactions of photosynthesis.

Enzyme

A biological catalyst that speeds up the rate of a chemical reaction without being consumed in the process.