From Wikibooks, open books for an open world
- Autotroph: an organism which can make its own energy
- Cell: Fundamental structural unit of all living things
- Eukaryote: an organism with a nucleus
- Exoenzyme: an enzyme used to break down organic molecules outside the body
- Heterotroph: an organism which can not make its own energy
- Hydrocarbon: an organic compound that contains carbon and hydrogen only.
- Lipid: fatty acid esters which form the basis of cell membranes
- Nucleus: Membrane-bound organelle which contains the chromosomes
- Prokaryote: an organism with no nucleus
- Haploid: A cell with a single set of chromosomes (23 in humans), in humans this is usually in gametes. This is commonly represented by n.
- Diploid: A cell with two sets of chromosomes (46 in humans). This is commonly represented by 2n.