Enzymes are biological catalysts, and the vast majority of enzymes are proteins. However, not all proteins function as enzymes. Proteins perform a wide variety of functions in living organisms, including structural support (e.g., collagen, keratin), transport (e.g., haemoglobin), defence (antibodies), movement (actin, myosin), and signaling (hormones like insulin). Only a subset of proteins possesses enzymatic activity. There are also some non-protein enzymes, such as ribozymes (RNA molecules).
Which one of the following statements is NOT correct ?
Asked in UPSC NDA 1 2017 · Topic: Vitamins and Nutrition (Carbohydrates: Types, Sources, Functions, Deficiency/Excess Disorders)
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