An enzyme is a protein that acts as a catalyst in living organisms.

True

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False

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Solution

The correct option is A True
A substance that increases the speed of a reaction, but itself does not take part in the chemical reaction.
An enzyme is a substance that acts as a catalyst in living organisms. They are actually proteins.
An enzyme is a protein that acts as a catalyst in living organisms.
Example: Protease is an enzyme that helps in the breakdown of protein.
Hence, the given statement is true.

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Similar questions

Q. Name the following :
(a) The process in plants which converts light energy into chemical energy.
(b) Organisms that cannot prepare their own food.
(c) Organisms that can prepare their own food.
(d) The cell organelle where photosynthesis occurs.
(e) The cells which surround a stomatal pore.
(f) An enzyme secreted by gastric glands in stomach which acts on proteins.

Name the following :
(a) The process in plants which converts light energy.
(b) Organisms that cannot prepare their own food.
(c) Organisms that can prepare their own food.
(d) The cell organelle where photosynthesis occurs.
(e) The cells which surround a stomatal pore.
(f) An enzyme secreted by gastric glands in stomach which acts on proteins.

Q. Non-proteinaceous enzyme that acts as a catalyst for the formation of peptide bond is
OR
"All enzymes are proteins." This statement is now modified because an apparent exception to this biological truth is

Which organic molecule other than proteins acts like a catalyst?

Q. Regarding the assertion and reason, select the correct option.
Assertion [A]: Proteins are very important biomolecules in a living organism.
Reason [R]: Proteins make up the enzymes responsible for almost all the chemical reactions in an organism.

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