Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
capillary
Glossaries - Biology glossary

smallest blood vessel that allows the passage of individual blood cells and the site of diffusion of oxygen and nutrient exchange

capillary action
Glossaries - Biology glossary

occurs because water molecules are attracted to charges on the inner surfaces of narrow tubular structures such as glass tubes, drawing the water molecules to the tubes' sides

capillary bed
Glossaries - Biology glossary

large number of capillaries that converge to take blood to a particular organ or tissue

capsid
Glossaries - Biology glossary

protein coating of the viral core

capsomere
Glossaries - Biology glossary

protein subunit that makes up the capsid

capsule
Glossaries - Biology glossary

external structure that enables a prokaryote to attach to surfaces and protects it from dehydration

capsule
Glossaries - Biology glossary

case of the sporangium in mosses

captacula
Glossaries - Biology glossary

tentacle-like projection that is present in tusks shells to catch prey

carbaminohemoglobin
Glossaries - Biology glossary

molecule that forms when carbon dioxide binds to hemoglobin

carbohydrate
Glossaries - Biology glossary

biological macromolecule in which the ratio of carbon to hydrogen and to oxygen is 1:2:1; carbohydrates serve as energy sources and structural support in cells and form the a cellular exoskeleton of arthropods.

carbon fixation
Glossaries - Biology glossary

process of converting inorganic CO2 gas into organic compounds

carbonic anhydrase (CA)
Glossaries - Biology glossary

enzyme that catalyzes carbon dioxide and water into carbonic acid

carboxypeptidase
Glossaries - Biology glossary

protease that breaks down peptides to single amino acids; secreted by the brush border of the small intestine

cardiac cycle
Glossaries - Biology glossary

filling and emptying the heart of blood by electrical signals that cause the heart muscles to contract and relax

cardiac muscle tissue
Glossaries - Biology glossary

muscle tissue found only in the heart; cardiac contractions pump blood throughout the body and maintain blood pressure

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