Question

Select the true statements.



Salivary amylase is used up during a chemical reaction.

Salivary amylase specifically binds to amylose.

Salivary amylase helps build polymers like proteins.

An enzyme speeds up a chemical reaction.

Answer 1

True statements: 2 and 4.

- 2 is true: salivary amylase is specific for starch molecules (it acts on amylose and amylopectin).
- 4 is true: enzymes speed up chemical reactions by lowering the activation energy.

False statements:
- 1 is false: enzymes are catalysts and are not consumed in the reaction (they can be reused).
- 3 is false: amylase breaks down carbohydrates (starch) rather than building polymers like proteins.