SCIENCE
BOTANY
Question
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Three of the following statements about enzymes are correct and one is wrong. Which one is wrong?
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Enzymes require optimum pH for maximal activity.
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Enzymes are denatured at high temperature but in certain exceptional organisms they are effective even at temperature 800-900C.
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Enzymes are highly specific.
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Most enzymes are proteins but some are lipids.
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Explanation:
Detailed explanation-1: -Enzymes are major proteins and some exist in RNA form, which are known as the catalytic RNAs or ribozymes, but no enzymes exist in lipid form.
Detailed explanation-2: -(iii) Enzymes speed up reactions by lowering activation energy.
Detailed explanation-3: -which of the following is true of enzymes?-Enzyme function is influenced by physical and chemical environment factors such as pH and temperature.-Enzymes may require a nonprotein cofactor or ion for catalysis to take place.-Enzymes increase the rate of chemical reaction by lowering activation energy barriers.
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