NEET Biology NEET PYQ-Enzyme

  • question_answer
                Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these: [AIPMT (S) 2005]

    A) enhance oxidative metabolism

    B) are conjugated proteins

    C) are exclusively synthesized in the body of a living organism as at present

    D) help in regulating metabolism

    Correct Answer: D

    Solution :

    [D] Enzymes, vitamins and hormones are classified into a single category of biological chemical because all these help in regulation of metabolism. Enzyme is a proteinaceous catalyst produced by a cell and responsible for the high rate and specificity of one or more intercellular or intracellular biochemical reactions. Vitamin is an organic substance which generally synthesized by plants (exception vitamin-D). Absence of a vitamin from the diet for sufficient time gives symptoms of a resulting deficiency disease. Hormones are chemical messengers which on secretion bring about a specific and adaptive physiological response.


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