Question

Which of the following statements is absolutely correct?
A) All proteins are enzymes
B) All enzymes are proteins
C) Most enzymes are proteins
D) None of the above

Answer 1

Hint: We know that biochemical reactions are catalysed by enzymes, which are biological polymers. Living organisms produce biological polymers naturally. Carbohydrates, lipids, proteins, and nucleic acids are the four basic types of biological macromolecules. These polymers are made up of various monomers and have a variety of purposes.

Complete answer:
In general, let us understand the meaning of the two key terms ‘enzymes’ and ‘proteins’. Enzymes are compounds that work as catalytic stimulants in living things, controlling the pace at which chemical reactions occur and the enzymes are not affected by the process. Proteins serve a wide range of roles inside species, including catalyzing metabolic events, DNA replication, transporting chemicals and so on.

Now we can check each option to see which option expresses the right statement that explains the relationship between enzymes and proteins:
A) All proteins are enzymes: The majority of enzymes are catalytic proteins that are essential for the maintenance of different life processes, but not all proteins act as enzymes. Enzyme active sites have a distinct shape and a functional group for reactant molecule binding. Hence the substrate group is the molecule that binds with the enzyme to form a very stable enzyme or substrate complex. That is, all proteins are not enzymes.

B) All enzymes are proteins: Enzymes are biological catalysts that speed up reactions by creating a second pathway for the reaction to take place. They are protein molecules that come in a variety of shapes and sizes, each serving as a catalyst for various reactions. But there are certain enzymes, including ribozymes, that are not proteins. Hence, all enzymes are not proteins.

C) Most enzymes are proteins: Proteins make up the majority of enzymes. Non-protein components or metallic elements can be bound to certain enzymes in order for them to act. Ribozyme is a kind of enzyme, not a protein.

D) None of the above: By considering the first three options, there is no scope for option D).

Hence, the correct answer is option (C) "Most enzymes are proteins."

Note: Proteins do most of the activities that are required for the structure, function, and regulation of the body’s tissues and organs. Enzymes play an increasingly important role in medicine. The enzyme thrombin is employed to market the healing of wounds. Other enzymes are wont to diagnose certain sorts of disease.