Question

1. what is a chemical reaction?

a) catalyst b) fragile
c) specific d) reusable

1. with what 3 letters do enzymes typically end?

a) -ese b) -ase
c) -tic d) -ose

1. enzymes are an example of

a) nucleic acid b) protein
c) carbohydrate d) lipids

1. how enzymes work

letter b...
a) active site b) substrate
c) enzyme d) products

1. how enzymes work

letter e...
a) products b) enzyme
c) substrate d) active site

Explanation:

• Question 44: Enzymes are named with the suffix “-ase”. For example, amylase (breaks down starch).
• Question 45: Enzymes are biological catalysts, and most enzymes are proteins. Proteins are made of amino acids and can have complex 3 - D structures that allow them to function as enzymes.
• Question 46: In the enzyme - substrate model, the substrate (B) is the molecule that binds to the enzyme. The active site (C) is the region on the enzyme where the substrate binds.
• Question 47: After the enzyme - substrate reaction, the products (E) are released. The enzyme (D) remains unchanged and can catalyze more reactions.

Answer:

1. B. -ase
2. B. Protein
3. B. substrate
4. A. products