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Bio 2083 Exam 3
Terms in this set (13)
How does a cell extract energy and reducing power from its environment?
How does a cell synthesize the building blocks of its macromolecules and then the macromolecules themselves?
___ break down proteins into small peptides and amino acids
Proteases and peptidases
Digestive proeases and peptidases are first synthesized as inactive precursor forms called
proenzymes or zymogens
____ cleaves trypsinogen to form active trypsin.
α-Amylase initiates digestion by cleaving
α-1,4 glycosidic bonds
Other enzymes that complete digestion of carbohydrates
maltase, α-glucosidase, and α-dextrinase
___ secreted by the pancreas, convert the triacylglycerols into 2 fatty acids and monoacylglycerol.
In the intestine, triacylglycerols are reformed from free fatty acids and monoacylglycerol and packaged into lipoprotein particles called
The ability to maintain adequate but not excessive energy stores
5 energy principles
Molecules are degraded or synthesized stepwise in a series of reactions termed metabolic pathways.
ATP is the energy currency of life.
ATP can be formed by the oxidation of carbon fuels.
Although many reactions occur inside a cell, there are a limited number of reaction types involving particular intermediates that are common to all metabolic pathways.
Metabolic pathways are highly regulated.
Metabolic pathways can be divided into two types
Catabolic pathways combust carbon fuels to synthesize ATP.
Anabolic pathways use ATP and reducing power to synthesize large biomolecules.
can function anabolically or catabolically.
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