Exam example for general microbiology
Q1) Match the following scientists with the best fit field
A) Ehrlich
B) Lister
C) Pasteur
D) Jenner
–proof of biogenesis
– vaccination
– chemotherapy
–aseptic surgery
Q2) List the important characteristics of each of the following domain system
A) Eukarya
B) Archaea
C) Bacteria
Q3) Provide evidence to substantiate the hypothesis that eukaryotic cells evolved
from prokaryotic cells
Q4) Add these labels to the diagram in the appropriate places:
hyaluronic acid (a polysaccharide); GluUA-GlcNAc (a disaccharide);
glucose (a monosaccharide); hyaluronidase (an exoenzyme);
hyaluronic acid transporter protein.
Q5) Compare and contrast gram-positive and gram-negative cell walls
Q6) Define the following:
Growth factors, trace elements, complex media
For chapter 8 , please see questions at the end of the chapter.
Q7) Multiple choices:
1) Which of the following statements about viruses is false?
A) They lack cells.
B) They cannot metabolize nutrients.
C) They cannot reproduce themselves.
D) They have both DNA and RNA.
E) They are parasites.
Answer: D
2) Regarding the experiments that "proved" spontaneous generation, which of the
following statements is probably true?
A) Air was lacking.
B) Too much heat was applied.
C) The food source could not support life.
D) Microorganisms were already present.
E) Excess carbon dioxide was present.
Answer: D
3) The addition of which of the following to a culture medium will neutralize acids?
A) Buffers
B) Sugars
C) pH
D) Heat
E) Carbon
Answer: A
4) Salts and sugars work to preserve foods by creating a
A) Depletion of nutrients.
B) Hypotonic environment.
C) Lower osmotic pressure.
D) Hypertonic environment.
E) Lower pH.
Answer: D
5) Which enzyme catalyzes the reaction: 2H2O2 → 2H2O + O2?
A) Catalase
B) Oxidase
C) Peroxidase
D) Superoxide dismutase
Answer: A