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Enzymes Practice Test Questions

Virtual Cell Biology Classroom of Science Prof Online


Enzymes Sample Test Questions
Review Questions

Free review questions to help students better understand Enzymes.
Enzyme Carbonic Anhydrase
Virtual Cell Biology

You have free access to a large collection of materials used in a college-level introductory Cell Biology Course. The Virtual Cell Biology Classroom provides a wide range of free educational resources including Power Point Lectures, Study Guides, Review Questions and Practice Test Questions.
Endomembrane System of a Eukaryotic Cell, Mariana Ruiz

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Page last updated: 6/2014
3. The substrate in this reaction is...

a. catechol        b. oxygen       c. catecholase       d. polyphenol     e. b & c

4.When an enzyme is no longer able to work, it is said to be:

a. catalyzed       b. dead          c. cofactored         d. denatured

5. An enzyme is primarily made of:

a. carbohydrate       b. protein        c. nucleic acid       d. lipid

6. When a molecule binds to an area of an enzyme that is not the active site, and changes the shape of the enzyme so that it no longer can work, this is called...

a. denaturation
b. competitive inhibition
c. noncompetitive inhibition
d. substrate delocation

7. In an enzymatic reaction, the amount of ________________ determines the amount of product produced.

a. catalyst       b. reactant       c. oxygen       d. enzyme       e. water

8. In the apple experiment, the apple was bitten in two areas. One bite we left alone. The other bite we covered with lemon juice. Why did the bitten area of the apple that was NOT covered with lemon juice turn brown?

a. the enzyme was denatured
b. accumulation of catechol
c. accumulation of polyphenol
d. accumulation of catecholase

9. You can't make Jell-o with fresh pineapple because...

a. fresh pineapple denatures enzymes in the Jell-o
b. fresh pineapple contains enzymes that digest the protein in Jell-o
c. fresh pineapple is too acidic
d. fresh pineapple adds extra water to the Jell-o, preventing the Jell-o from setting properly

10. Coenzymes...

a. are types of apoenzymes
b. are proteins
c. are inorganic cofactors
d. are organic cofactors

The following questions, from the Virtual Cell Biology Classroom, are designed to help students better understand this topic. All questions are based on material that can be found on the Enzymes Lecture Main Page.

Examine the following reaction, and then answer the questions 1 - 3 below:

catechol + oxygen (O2)---------------> polyphenol

1. The enzyme in this reaction is...

a. catechol        
b. oxygen        
c. catecholase        
d. polyphenol

2. The product in this reaction is...

a. catechol
b. oxygen        
c. catecholase        
d. polyphenol   
e. a & b

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