12 Questions
What is the primary function of catabolic pathways in metabolic processes?
To release energy by breaking down complex molecules
Which type of energy is available for release in a chemical reaction?
Chemical energy
What is the consequence of a loss in the flow of energy in an organism?
Death
What determines whether a reaction is spontaneous or not?
The free energy change
What is the result of energy transformation according to the second law of thermodynamics?
Increased entropy (disorder) of the universe
What is the definition of metabolism in an organism?
All of the chemical reactions in an organism
What is the primary role of enzymes in chemical reactions?
To lower the activation energy of a reaction without altering ∆G
Which type of inhibitor binds to the active site of an enzyme, preventing the binding of the substrate?
Competitive inhibitor
What is the characteristic of an endergonic reaction?
It consumes energy from the surroundings
What is the effect of increasing the concentration of an enzyme on a reaction?
It increases the rate of the reaction
What is the purpose of the allosteric site on an enzyme?
To bind noncompetitive inhibitors and regulate enzyme activity
Which process is an example of an exergonic reaction?
Cellular respiration
Test your knowledge on cellular energetics, including energy, laws, and functions of cellular respiration and photosynthesis. This quiz also covers enzymes, metabolism, and metabolic pathways.
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