1. An exergonic reaction is one that _______. An exergonic reaction is one that
ID: 148108 • Letter: 1
Question
1. An exergonic reaction is one that _______.
An exergonic reaction is one that
Releases energy that is available to do work.
Requires an input of energy.
is at equilibrium.
is not spontaneous.
2.
Enzymes accelerate the rate of reactions by______.
Lowering the activation energy.
Lower the Gibbs free energy.
Lowering the energy of the reactants.
Increasing the energy of the products.
3.
Glycolysis is an example of a __________.
anabolic reaction
photosynthetic reaction
synergistic reaction
catabolic reaction
4.
Glucose is a ________.
protein
lipid
nucleic acid
carbohydrate
Releases energy that is available to do work.
Requires an input of energy.
is at equilibrium.
is not spontaneous.
2.
Enzymes accelerate the rate of reactions by______.
Lowering the activation energy.
Lower the Gibbs free energy.
Lowering the energy of the reactants.
Increasing the energy of the products.
3.
Glycolysis is an example of a __________.
anabolic reaction
photosynthetic reaction
synergistic reaction
catabolic reaction
4.
Glucose is a ________.
protein
lipid
nucleic acid
carbohydrate
Explanation / Answer
1. An exergonic reaction is that releases energy that is available to do work. Exer- indicates outwards and ender indicates inwards. Hence, endergonic reaction uses or requires energy to do work. When you mix two compounds heat is produced, this is an exergonic reaction.
2. Enzymes accelerate the reactions by lowering the activation energy. Activation energy is minimum amount of (threshold) energy that the reactants should possess to carryout the reaction. The enzymes are biological catalysts, thus they help the reactants to choose a way with low threshold energy.
3. Glycolysis is an example of catabolic or degradation reaction of glucose.
lysis= degradation. It is an aerobic reaction using oxygen. Glucose is lysed finally into pyruvic acid. Glycolytic pathway is used for the formation of 8 molecules ATP.
4. Glucose is a carbohydrate. C,H,O are present in C6H12O6. It is generally hydrate of carbon with H and O in the ratio 2:1. On classification of saccharides (sugar substances), it is a monosaccharide.
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