NEET2013BotanyBiomolecules (B)Actual
Which of the following statements about enzymes is wrong?
Options
- AEnzymes are denatured at high temperatures.
- BEnzymes are mostly proteins but some are lipids also.
- CEnzymes are highly specific.
- DEnzymes require optimum pH and temperature for maximum activity.
Correct answer
B. Enzymes are mostly proteins but some are lipids also.
Step-by-step solution
Chemically, enzymes are generally globular proteins. Enzymes are catalysts that breakdown or synthesize more complex chemical compounds. They speed up the rate of chemical reactions because they lower the energy of activation, the energy that must be supplied in order for molecules to react with one another. Anything that an enzyme normally combines with is called a substrate. Enzymes are very efficient. Enzymes are only present in small amounts in the cell since they are not altered during their reactions. and the