Unit 1 Test Review

Front

What happens to an enzyme when it denatures?

Back

It becomes inactive.

Front

What factor can denature an enzyme?

Back

Excessive heat.

Front

What are lipids made of?

Back

Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What is the optimum pH of an enzyme if it is 6.6?

Back

The enzyme's activity is highest at pH 6.6.

Front

What is a hydrogen bond?

Back

A bond created by the weak attraction of a slightly positive hydrogen atom to a slightly negative portion of another molecule.

Front

What type of biological molecule is an enzyme?

Back

Protein.

Front

What is the role of enzymes in biological reactions?

Back

They act as catalysts to speed up chemical reactions.

Front

What is the effect of temperature on enzyme activity?

Back

Increased temperature can increase activity up to a point, after which denaturation occurs.

Front

What is a polar molecule?

Back

A molecule with a partial positive charge on one side and a partial negative charge on the other.

Front

What is the significance of pH in enzyme activity?

Back

Each enzyme has an optimum pH at which it functions best.