Chemical Structure of Methane
Chemical Structure of MethaneChemical Structure of MethaneChemical Structure of Methane
Chemical Structure of Methane

Chemistry of Microbiology Test Questions II

The following questions, from the Virtual Microbiology Classroom (8-week & 16-week), are designed to help students better understand Organic Chemistry. All questions are based on material that can be found on the Chemistry of Microbiology Lecture Main Page.

Chemistry of Microbiology Practice Test Questions - Organic

Chemistry of Microbiology
Practice Test Questions II (Organic)

Virtual Microbiology Classroom of Science Prof Online

1. Lactose is a...

a. polysaccharide  
b. dipeptide  
c. monosaccharide   
d. fatty acid   
e. disaccharide

2. Peptide bonds link amino acids together to form polypeptides.

a. True      b. False
​3. The pairing of nitrogenous bases make up the "rungs" of the DNA "ladder". Which base in a DNA molecule can form hydrogen bonds with thymine?

a. thymine    b. uracil    c. guanine    d. adenine     e. cytosine

4. The "energy currency" used within cells is called:

a. Euro
b. adenosine triphosphate (ATP)
c. adenosine monophosphate (AMP)
d. ribose
e. deoxyribonucleic acid (DNA)

5. Which two answers best describe what would be found in a triglyceride?

#1. glycerol
#2. one fatty acid
#3. two fatty acids
#4. three fatty acids
#5. nucleoside
#6. amino acid

a. 4, 5        b. 1, 2        c. 1, 4        d. 4, 6        e. 1, 5

6. How many atoms of hydrogen (H) are able to bond with one carbon (C) atom?

a. one        b. two        c. three        d. four        e. five

7. Which of the following are biologically important polymers (large molecules composed of subunits or monomers)?

#1. polysaccharide
#2. monosaccharide
#3. amino acids
#4. proteins
#5. nucleotides
#6. DNA

a. 3, 6     b. 1, 4, 6     c. 2, 3, 4     d. 1, 2, 3, 4, 5, 6     e. 4, 6

8. The type of lipid molecules that are polar and spontaneously arrange in a lipid bilayer are:

a. proteins          b. fats         c. waxes         d. phospholipids

9. MacConkey's Agar reveals if the Gram-negative bacteria growing on it can eat what?

a. a specific type of protein          b. fat         c. pH
d. a specific type of carbohydrate      d. nucleic acid                  

10. The differential aspect of Mannitol Salt Agar reveals if the halophilic bacteria growing...

a. can ferment lactose
b. are halophiles
c. can ferment mannitol
d. are Gram+
e. are Gram-

Click here for more Chemistry of Microbiology practice test questions.

Mannitol Salt Bacterial Growth Medium (positive on left, negative on right)
Chemistry of Micro
Review Questions

Free review questions to help students practice their understanding of 
Chemistry of Microbiology.
Prokaryotic Cell, Mariana Ruiz
Virtual Microbiology

You have free access to a large collection of materials used in a college-level introductory microbiology course. The Virtual Microbiology Classroom provides a wide range of free educational resources including PowerPoint Lectures, Study Guides, Review Questions and Practice Test Questions.
Mannitol Salt Medium changes color from pink to yellow when manntol fermeters, such as Staph aureus are present. 

Page last updated 2/2016