Glossary of terms used on this site
Glossary of biology.
Glossaries
Term | Main definition |
---|---|
G-protein | Glossaries - Biology glossary a membrane protein activated by the hormone first messenger to activate formation of cyclic AMP |
G-protein-linked receptor | Glossaries - Biology glossary cell-surface receptor that activates membrane-bound G-proteins to transmit a signal from the receptor to nearby membrane components |
gall | Glossaries - Biology glossary appearance of a plant tumor |
gallbladder | Glossaries - Biology glossary |
gametangium | Glossaries - Biology glossary structure on the gametophyte in which gametes are produced |
gametic barrier | Glossaries - Biology glossary prezygotic barrier occurring when closely related individuals of different species mate, but differences in their gamete cells (eggs and sperm) prevent fertilization from taking place |
gametophyte | Glossaries - Biology glossary a multicellular haploid life-cycle stage that produces gametes |
gametophyte | Glossaries - Biology glossary multicellular stage of the plant that gives rise to haploid gametes or spores |
gap junction | Glossaries - Biology glossary |
gastric inhibitory peptide | Glossaries - Biology glossary hormone secreted by the small intestine in the presence of fatty acids and sugars; it also inhibits acid production and peristalsis in order to slow down the rate at which food enters the small intestine |
gastric phase | Glossaries - Biology glossary |
gastrin | Glossaries - Biology glossary hormone which stimulates hydrochloric acid secretion in the stomach |
gastrodermis | Glossaries - Biology glossary inner layer (from endoderm) that lines the digestive cavity |
gastrovascular cavity | Glossaries - Biology glossary opening that serves as both a mouth and an anus, which is termed an incomplete digestive system |
gastrovascular cavity | Glossaries - Biology glossary digestive system consisting of a single opening |