chapter 6 quiz Flashcards
Which of the following statements best describes the cellular process of catabolism?
break down of polymers into monomers
In addition to its critical role in cellular metabolism, ATP may also be described as which of the following?
an RNA nucleotide
Which of the following statements best describes the induced fit model of enzyme activity?
The binding of substrate changes the conformation of the active site to bind substrate more tightly.
Inhibition of an enzyme in a biosynthetic pathway by the end product of that pathway is an example of which of the following types of inhibition?
feedback
In most exergonic reactions, before products can be formed, the reactants must first overcome a thermodynamic barrier known which of the following?
activation energy of the reaction
Which of the following statements best describes a function of enzymes?
Enzymes increase the rate of a reaction by lowering the activation energy barrier.
Which of the following is an example of an anabolic pathway?
a set of reactions that combine monomers into larger, more energy-rich polymers
Which of the following statements best describes a common feature of catabolic pathways?
They usually release energy as they degrade polymers to monomers.
Which term below best describes a chemical reaction that has a positive ΔG?
endergonic
Which of the following statements is true for all exergonic reactions?
The reaction proceeds with a net release of free energy.
