Micro

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Chapter 1
1. The scientist usually considered the first to see microorganisms, which he called "animalcules", was A) Redi
B) van Leeuwenhoek
C) Pasteur
D) Tyndall

2. The idea of Spontaneous Generation postulated that
A) organisms could evolve into the next generation of organisms B) organisms could spontaneously combust
C) organisms could spontaneously arise from other living organisms D) living organisms could spontaneously arise from non-living material

3. The work of Tyndall and Cohn
A) supported the idea of spontaneous generation
B) was used to explain why others investigating spontaneous generation had obtained results that were opposite of those obtained by Pasteur C) showed that microbes caused disease
D) allowed scientists to see microorganisms

4. Microorganisms are involved in
A) causing disease
B) curing/treating disease
C) preparing food
D) cleaning up pollutants
E) all of the choices are correct

5. Plants are dependent on microorganisms
A) providing oxygen
B) providing water
C) changing atmospheric nitrogen to a usable form
D) providing carbohydrates

6. Which is usually true of Bacteria?
A) They are found as rods, spheres, or spirals
B) They reproduce by binary fission
C) They contain rigid cell walls made of petidoglycan
D) They are found as single cells
E) All of the choices are correct

7. Which is not usually true of Archaea?
A) They are found as rods, spheres, or spirals
B) They reproduce by binary fission
C) They contain rigid cell walls
D) They are found as single cells
E) They contain peptidoglycan as part of their cell walls

8. Outside a cell, viruses are
A) running a small number of biochemical reactions
B) synthesizing proteins necessary for entry into the host
C) inactive
D) constructing a cell membrane known as an envelope
E) running a small number of biochemical reactions AND synthesizing proteins necessary for entry into the host

9. Eucarya
A) consist of only multicellular organisms
B) have a more complex internal structure than Archaea or Bacteria C) have a simpler internal strucuture than Archaea or Bacteria D) have a membrane around the DNA
E) have a more complex internal structure than Archaea or Bacteria AND have a membrane around the DNA

10. Organisms
A) may be classified in four domains
B) may be classified in three domains
C) probably do not have a common ancestor
D) have never shared genes between domains
E) may be classified in three domains, probably do not have a common ancestor AND have never shared genes between domains

Chapter 3
1. The two magnifying lenses found in a light microscope are the A) basic and transverse
B) small and large
C) ocular and objective
D) simple and phase

2. The resolving power of a microscope is described as the ability of the microscope to A) searate clearly two objects that are very close together
B) magnify and object
C) separate the colors of an organism's internal structure
D) see structures at various depths in a tissue

3. In viewing a microscopic specimen, oil is used to
A) increase the refraction
B) decrease the refraction
C) increase the reflection
D) increase the resolution
E) decrease the refraction AND increase the resolution

4. Basic dyes
A) have negative charges
B) have positive charges
C) are electrically neutral
D) contain both positively and negatively charged particles

5. Which of the following stains is/are considered differential? A) flagella stain
B) acid fast stain
C) Gram stain
D) acid fast stain AND Gram stain

6. The order of reagents in the Gram stain reaction are
A) safranin, alcohol, methylene blue, iodine
B) crystal violet, iodine, alcohol, safranin
C) methylene blue, alcohol, safranin
D) crystal violet, alcohol, iodine, safranin

7. The major criteria used in placing bacteria into different groups is based on differences in A) cell wall structure
B) cell membrane...
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