Nicotinamide adenine dinucleotide is an example of:
Correct answer: A. Coenzymes
- A. Coenzymes
- B. Holoenzymes
- C. None of these
- D. Both of these
Explanation
A coenzyme is defined as an organic molecule that binds to the active sites of certain enzymes to assist in the catalysis of a reaction. NAD is the most important coenzyme as well as cofactor in a eukaryotic cell. Not surprisingly, NAD and the closely related NADP are the two most abundant cofactors in eukaryotic cell.
Last updated
About Enzymes as Biocatalysts
Enzymes are protein or RNA biocatalysts that lower activation energy without being consumed, and their active sites bind specific substrates. The topic covers the lock and key and induced fit models, effects of temperature, pH and substrate concentration, cofactors, enzyme specificity, and competitive versus non-competitive inhibition.
Practise Macromolecules
299 free Macromolecules MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A coenzyme differs from a cofactor in that a coenzyme is
A competitive inhibitor reduces the rate of an enzyme catalysed reaction by
An enzyme has its specificity due to________________?
An enzyme lowers the activation energy of a reaction by
An enzyme used to decompose the lipids into fatty acids in our alimentary canal is