Which biomolecules are responsible for catalysing biochemical reactions?

Correct option is B

The correct answer is (b) Enzymes
Explanation:
• Enzymes act as biological catalysts, accelerating biochemical reactions inside living organisms.
• They speed up metabolic processes without being consumed in the reaction.
• Most enzymes are proteins with highly specific active sites for substrates.
• They are involved in digestion, cellular respiration, DNA replication, and other essential life processes.

Information Booster:
• Enzyme activity depends on pH, temperature, and substrate concentration.
• Examples: amylase, pepsin, lipase, DNA polymerase, catalase.
Additional Knowledge:
Polysaccharides (Option a)
. Complex carbohydrates used for energy storage or structural functions, not catalysts.
Nucleotides (Option c)
. Monomers of DNA and RNA; not responsible for catalysis (except rare ribozymes).
Phospholipids (Option d)
. Major components of cell membranes; no catalytic role.