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Ch.3 Cell Metabolism

Stanfield Cell Metabolism

QuestionAnswer
When glucose is oxidized in cells, oxygen reacts with _______. Hydrogen to form H20
Illustration of substrate-level phosphorylation where "P"=Phosphate and "X"=metabolic intermediate. X-P+ADP--X+ADP
An example of hydrolysis lactose + H20 -- glucose + galactose
Organic (includes carbon atoms) molecules that synthesize triglycerides protein, carbs and lipids
Enzymes increase the rate of a catalyzed reaction by________ decreasing the ACTIVATION energy
In the reaction: NAD+ +AH2--(enzyme)--NADH + H+ + A, NAD+ receives electrons from AH2. Which substance goes oxidation? AH2
Carried out by enzymes in the cytosol Glycolysis
Where is CO2 generated? The Linking Step and the Kreb's Cycle
The removal of a hydrogen atom from a molecule is an example of oxidation or reduction? Oxidation
The forward rate of a reaction can be increased by increasing concentrations of the reactant or product? Reactant
For a reaction to happen spontaneously in the forward direction, the energy change must be positive or negative? Negative
Liver & muscle cells are able to store glucose in the form of branched-chain molecules called ______________. Glycogen
Allosteric regulation involves the attachment of a modulator molecule to an enzyme by means of a COVALENT bond. T/F False
Glycogenolysis is an example of catabolic reaction. T/F True
The conversion of noncarbohydrate precursors into glucose is called ___________. Gluconeogenesis
When ATP is synthesized using energy released in glucose oxidation, most of the ATP is synthesized by oxidative phosphorylation. T/F True
When a substrate molecule binds to an enzyme, it binds to a particular location known as the active or regulatory site? Active
Unless a substance is an essential nutrient, it is not necessary for proper cellular function. T/F False
An enzyme catalyzes a reaction at the lowest or highest possible rate when it is 100% saturated? Highest
Conversion of pyruvate to lactate occurs under aerobic or anaerobic conditions? Anaerobic
Created by: n2biology
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