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Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
inositol phospholipid
Glossaries - Biology glossary

lipid present at small concentrations in the plasma membrane that is converted into a second messenger; it has inositol (a carbohydrate) as its hydrophilic head group

inositol triphosphate (IP3)
Glossaries - Biology glossary

cleavage product of PIP2 that is used for signaling within the cell

insectivorous plant
Glossaries - Biology glossary

plant that has specialized leaves to attract and digest insects

inspiratory capacity (IC)
Glossaries - Biology glossary

tidal volume plus inspiratory reserve volume

inspiratory reserve volume (IRV)
Glossaries - Biology glossary

amount of additional air that can be inspired after a normal inhalation

insulin
Glossaries - Biology glossary

hormone produced by the beta cells of the pancreas in response to high blood glucose levels; functions to lower blood glucose levels

insulin-like growth factor (IGF)
Glossaries - Biology glossary

growth-promoting protein produced by the liver

integral protein
Glossaries - Biology glossary

protein integrated into the membrane structure that interacts extensively with the membrane lipids' hydrocarbon chains and often spans the membrane

integument
Glossaries - Biology glossary

layer of sporophyte tissue that surrounds the megasporangium, and later, the embryo

intercalary meristem
Glossaries - Biology glossary

meristematic tissue located at nodes and the bases of leaf blades; found only in monocots

intercellular signaling
Glossaries - Biology glossary

communication between a cell

intercostal muscle
Glossaries - Biology glossary

muscle connected to the rib cage that contracts upon inspiration

interferon
Glossaries - Biology glossary

cytokine that inhibits viral replication and modulates the immune response

interkinesis
Glossaries - Biology glossary

(also, interphase II) brief period of rest between meiosis I and meiosis II

interlobar artery
Glossaries - Biology glossary

artery that branches from the segmental artery and travels in between the renal lobes