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Enzymes and Metabolism

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Questions and Answers

Which term refers to the sum of all the chemical reactions going on in a cell?

Metabolism (correct)

Reactions

Catalysts

Enzymes

What is the main function of enzymes in biochemical reactions?

To lower the need of activation energy

To be consumed in the reaction

To be highly specific

To increase the speed of the reaction (correct)

What did Payen and Persoz use to make a crude mixture that would digest starch?

Starch

Enzymes

Barley seeds (correct)

Water

Which property of enzymes makes them highly sensitive to pH and temperature?

High specificity (B) Signup and view all the answers

In which environments can enzymes work?

Both in vivo and in vitro (C) Signup and view all the answers

What is metabolism?

The sum of all the chemical reactions going on in a cell. Signup and view all the answers

What is the function of enzymes in biochemical reactions?

To speed up the biochemical reaction without being consumed. Signup and view all the answers

What are some common properties of enzymes?

Increase the speed of chemical reaction, required in very small quantity for the reaction, highly sensitive to pH and temperature, either highly specific or slightly less specific, can work in vivo (living cells) as well as in vitro (glassware), some require co-factor for proper activity, lower the need of activation energy. Signup and view all the answers