Question

Three of the following statements about enzymes are correct and one is wrong. Which one of the following is wrong?

• A. Enzymes require optimum pH for maximal activity.
• B. Enzymes are denatured at high temperature but in certain exceptional organisms they are effective even at temperatures 80-90${}^o$C.
• C. Enzymes are highly specific.
• D. Most enzymes are proteins but some are lipids.

Answer 1

The correct option is D Most enzymes are proteins but some are lipids.

Enzymes are the biological catalyst which catalyzes biological reactions within a narrow range of temperature and pH. Certain thermophiles have enzymes which remain functional even at very high temperatures. Most of the enzymes are proteins in nature but a few enzymes are RNA in nature. They are called as catalytic RNAs or ribozymes.