Search Results for: beta
Beta-blocker
Definition noun, plural: beta-blockers A drug that blocks the action of endogenous catecholamines on beta-adrenergic... Read More
Beta barrel
Definition noun, plural: beta barrels A large β-sheet that twists and coils to form a closed structure where the first... Read More
Beta-amylase
'Definition noun, plural: beta-amylases A form of amylase found in bacteria, molds, yeasts, and the seeds of plants that... Read More
Genetic Mutations
Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More
Genetic Control – On and Off Genes
Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More
Nonsense mutation
A nonsense mutation is the type of point mutation that renders the translation process useless by coding for a stop/nonsense... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Intrinsic sympathomimetic activity
Definition noun The property of a drug that produces partial agonist effect at the receptor similar to the cholinergic... Read More
Saccharide
Saccharide Definition What is a saccharide molecule? A saccharide is the unit structure of carbohydrates. In biochemistry,... Read More
Energy coupling
What is Energy Coupling? Work, whether it be physical or biological, requires energy to be expended. In biological... Read More
Hexosaminidase A
Definition noun A hydrolytic enzyme implicated in the breakdown of ganglioside producing... Read More
Islets of Langerhans
Definition Cell clusters in the pancreas that form the endocrine part of that organ; secrete insulin and other hormones.... Read More
Microfilament
Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... Read More
Metabolism
Metabolism Definition What is metabolism in the body? Metabolism encompasses the various biochemical processes, reactions,... Read More
Glycolysis
What is Glycolysis and Why is it Important? Glycolysis is a metabolic pathway by which the 6-carbon molecule of glucose is... Read More
Microtubule
Microtubule Definition noun plural: microtubules mi·cro·tu·bule, mī'krō-tū'byūl A cytoplasmic tubule made up of... Read More
Gene Action – Operon Hypothesis
Reviewed by: Mary Anne Clark, Ph.D. Some genes are switched on or off depending on environmental conditions. The... Read More
Lysosomal enzyme
Definition noun plural: lysosomal enzymes ly·so·somal en·zyme, ˈlaɪsəˌsoʊm əl ˈɛnzaɪm (biochemistry) Any of... Read More
Streptococcus
Definition noun, plural: streptococci (1) A genus of bacteria characterized by being coccus, Gram-positive, and occurring in... Read More
Regulation of Organic Metabolism, Growth and Energy Balance
Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More
Chlorophyta
Chlorophyta Definition Chlorophyta is a taxonomic group (a phylum) comprised of green algae that live in marine habitats.... Read More
Gamma-amylase
'Definition noun, plural: gamma-amylases A form of amylase that cleaves the last alpha-1,4-glycosidic linkages at the... Read More
Cytoskeleton
Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More
Sickle cell anaemia
Definition noun A hereditary blood disorder resulting in anaemia due to a mutation in the allele coding for the beta chain... Read More
Gamma hemolysis
Definition noun Nonhemolytic bacterial colony on blood agar plates. Supplement The hemolytic reactions of streptococci on... Read More
Hemoglobinopathy
Definition noun, plural: hemoglobinopathies A genetic disorder resulting in an abnormal globin structure in the hemoglobin... Read More
Oligosaccharide
Carbohydrates are organic compounds consisting of carbon, hydrogen, and oxygen, usually in the ratio of 1:2:1. They are one... Read More
Glycoprotein
Definition noun, plural: glycoproteins Any of the conjugated proteins, characterized by having one or more... Read More
Cellular respiration
Cellular Respiration Definition What is cellular respiration in simple terms? Cellular respiration can be defined simply as... Read More
Dehydration reaction
What is dehydration synthesis? A dehydration reaction is a form of biochemical reaction wherein a water molecule is lost or... Read More