Biology glossary

Glossary of biology.

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Glossaries

Term Main definition
thymus
Glossaries - Biology glossary

gland located behind the sternum that produces thymosin hormones that contribute to the development of the immune system

thyroglobulin
Glossaries - Biology glossary

glycoprotein found in the thyroid that is converted into thyroid hormone

thyroid gland
Glossaries - Biology glossary

endocrine gland located in the neck that produces thyroid hormones thyroxine and triiodothyronine

thyroid-stimulating hormone (TSH)
Glossaries - Biology glossary

hormone produced by the anterior pituitary that controls the release of T3 and T4 from the thyroid gland

thyroxine (tetraiodothyronine, T4)
Glossaries - Biology glossary

thyroid hormone containing 4 iodines that controls the basal metabolic rate

Ti plasmid
Glossaries - Biology glossary

plasmid system derived from Agrobacterium tumifaciens that scientists have used to introduce foreign DNA into plant cells

tibia
Glossaries - Biology glossary

(also, shinbone) large bone of the leg that is located directly below the knee

tidal volume (TV)
Glossaries - Biology glossary

amount of air that is inspired and expired during normal breathing

tight junction
Glossaries - Biology glossary

protein adherence that creates a firm seal between two adjacent animal cells

tonicity
Glossaries - Biology glossary

amount of solute in a solution

topoisomerase
Glossaries - Biology glossary

enzyme that causes underwinding or overwinding of DNA when DNA replication is taking place

torpor
Glossaries - Biology glossary

decrease in activity and metabolism that allows an animal to survive adverse conditions

total lung capacity (TLC)
Glossaries - Biology glossary

sum of the residual volume, expiratory reserve volume, tidal volume, and inspiratory reserve volume

trabecula
Glossaries - Biology glossary

tiny plate that makes up spongy bone and gives it strength

trabeculae
Glossaries - Biology glossary

lamellae that are arranged as rods or plates

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