choose the correct answer 1) The Second Law of Thermodynamics simply states that Group of answer...

choose the correct answer

The Second Law of Thermodynamics simply states that

Group of answer choices

disorder (or entropy) in the universe is continually increasing.

energy can be recycled through the universe.

energy can be created but not destroyed.

energy cannot be created or destroyed, just changed from one form to another.

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The non-protein components that aid in enzyme functioning are called

Group of answer choices

macromolecules

cofactors

reactants

substrates

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Enzymes are very specific in their choices of substrates because each different enzyme has an active site that

Group of answer choices

has a certain unique amino acid to fit each substrate.

depends on unusual amino acids not common in proteins.

is shaped to fit a certain substrate molecule.

passes electrons from one part of the substrate to another.

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Solutions

Expert Solution

1. a, entropy of the universe is continuously increasing.

Explanation : The second law of thermodynamics state that the entropy of an isolated system always increases and it can never decrease. Meaning , an isolated system always evolve towards a state if thermal equilibrium i.e. Towards maximum entropy. So the entropy of universe (isolated system) increases over time and never decreases.

2. b, cofactor.

Explanation : An inactive enzyme is known as apoenzyme. When a coenzyme or a cofactor binds to the apoenzyme, active holoenzyme is formed. Coenzymes are organic substances whereas cofactors are inorganic in nature.

3. c, is shaped to fit certain substrate molecule

Explanation : Each enzyme is very particular about the type of substrate it binds to. This is because of the specific shape of the active site present on the enzyme. There is a model called " lock and key" model that explains it. The model states that only a particular key can open a particular lock. Just like that, a particular substrate can bind to a particular shaped active site of enzyme.

gladiator answered 1 year ago

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