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Micro Biology Test #1 (multiple choice practice)

Total questions: 49

Worksheet time: 30mins

Name
Class
Date
1.

Which type of organisms have membrane bound nuclei in their cells?

a)

Bacteria

b)

Eukaryotes

c)

Prokaryotes

d)

Archaea

2.

Who discovered microbial fermentation, invented heat treatment to prevent spoilage, and developed vaccines

a)

Joseph Lister

b)

Antoine Van Leeuwenhoek

c)

Louis Pasteur

d)

Robert Koch

3.

How long is a typical E. coli cell?

a)

2 millimeters

b)

2 nanometers

c)

2 micrometers

d)

2 centimeters

4.

Which of these microbes are acellular?

a)

Viruses

b)

Bacteria

c)

Eukarya

d)

Archaea

5.

Which type of eukaryotes are not plant, animals, or fungi?

a)

Bacteria

b)

Microbes

c)

Archaea

d)

Protists

6.

The order of reagents used in the Gram stain are:

a)

iodine, crystal violet, safranin, alcohol

b)

crystal violet, iodine, safranin, alcohol

c)

crystal violet, iodine, alcohol, safranin

d)

alcohol, crystal violet, iodine, safranin

7.

Which of the following stains is used frequently to identify Myobacterium tuberculosis

a)

gram stain

b)

spore stain

c)

acid-fast stain

d)

negative stain

8.

Which of the following is not a characteristic of prokaryotic cell membranes?

a)

regulates passage of materials in and out of the cell

b)

single phospholipid layer

c)

phospholipid bilayer

d)

contains proteins and phospholipids

9.

Which of the following terms refers to a bacterial cell having a single tuft of flagella at one end?

a)

peritrichous

b)

monotrichous

c)

lophotrichous

d)

amphitrichous

10.

Which of the following cell wall components is unique to gram-negative cells?

a)

peptidoglycan

b)

mycolic acid

c)

teichoic acid

d)

lipopolysaccharide (LPS)

11.

What is the structure indicated by A?

(a)  

12.

What structure is indicated by B? (red dot)

(a)  

13.

What structure is indicated by C? (give the name of the area in the black circle)

(a)  

14.

What structure is indicated by D?

(a)  

15.

What structure is indicated by E?

(a)  

16.

All of the following structures can be found in Archael cells except

a)

Single circular chromosome

b)

Flagella

c)

Cell wall

d)

Cell membrane

e)

Peptidoglycan

17.

An example of a glycocalyx is

a)

a capsule

b)

outer membrane

c)

cell wall

d)

pili

18.

The site of ATP synthesis in prokaryotic cells is the __________ and in eukaryotic cells is the __________ (separate your answers with a comma)

(a)  

19.

Which of the following is NOT composed of microtubules?

a)

eukaryotic flagella

b)

bacterial flagella

c)

eukaryotic cilia

d)

spindle fibers

20.

What is the site of ribosome assembly?

a)

Nucleolus

b)

Chloroplasts

c)

Golgi complex

d)

Lysosomes

21.

Which of the following is NOT evidence for the endosymbiotic theory?

a)

Chloroplasts and mitochondria reproduce using binary fission, like prokaryotic cells

b)

Chloroplasts and mitochondria contain ribosomes that resemble prokaryotic ribosomes

c)

Chloroplasts and mitochondria contain their own DNA that resembles prokaryotic DNA

d)

Chloroplasts and mitochondria have structures that resemble prokaryotic cell walls

22.

Which organelle plays a key role in photosynthesis?

a)

Golgi complex

b)

Peroxisomes

c)

Ribosomes

d)

Chloroplasts

23.

Which organelle's function is intracellular digestion?

a)

Lysosomes

b)

Smooth ER

c)

Peroxisomes

d)

Golgi complex

24.

This organelle synthesizes lipids and hormones

a)

Peroxisomes

b)

Nucleolus

c)

Smooth ER

d)

Golgi complex

25.

Which organelle modifies and sorts proteins and lipid molecules?

a)

Smooth ER

b)

Golgi complex

c)

Peroxisomes

d)

Nucleolus

26.

This organelle neutralizes toxic molecules within the cell:

a)

Lysosomes

b)

Smooth ER

c)

Peroxisomes

d)

Ribosomes

27.

Penicillin is selectively toxic against bacteria because it targets which of the following?

a)

peptidoglycan synthesis

b)

mycolic acid

c)

70S ribosomes

d)

LPS

28.

Which of the following is not a B-lactam drug?

a)

cephalosporin

b)

carbapenem

c)

penicillin

d)

bacitracin

29.

Which of the following genera would be most sensitive to the antibiotic isoniazid

a)

Myobacterium

b)

Streptococcus

c)

Escherichia

d)

Staphylococcus

30.

Which of the following is the cellular target of polymyxin B?

a)

Outer membrane

b)

Plasma membrane

c)

Mycolic acid synthesis

d)

Penicillin-binding proteins (PBP)

31.

Which antibiotic was developed in response to the rapid increase in penicillin-resistant bacteria? (CHECK IF CORRECT)

a)

Carbapenems

b)

Vancomycin

c)

Methicillin

d)

Penicillin G

32.

A virus obtains its envelope during which of the following phases?

a)

penetration

b)

attachment

c)

release

d)

assembly

33.

What is another name for a non-enveloped virus?

a)

prophage

b)

provirus

c)

latent virus

d)

naked virus

34.

The nucleic acid of a virus is:

a)

DNA only

b)

either DNA or RNA

c)

RNA only

d)

both DNA and RNA

35.

What is the name for the transfer of genetic information from one bacterium to another bacterium by a phage?

a)

translation

b)

penetration

c)

transduction

d)

excision

36.

Which of the following leads to the destruction of the host cells?

a)

lysogenic cycle

b)

prophage

c)

lytic cycle

d)

temperate phage

37.

What is the name for the transfer of genetic information from one bacterium to another bacterium by a phage?

a)

excision

b)

transduction

c)

penetration

d)

translation

38.

Enveloped viruses carry surface receptors called

a)

spikes

b)

buds

c)

fibers

d)

sheaths

39.

Mad cow disease is caused by which type of pathogen?

a)

bacteria

b)

fungus

c)

virus

d)

prion

40.

Which general replication step includes the departure of new virions from host cell?

a)

Release

b)

Absorption

c)

Maturation

d)

Penetration

e)

Synthesis

41.

Which general replication step includes the attachment of viruses to host cell?

a)

Release

b)

Absorption

c)

Maturation

d)

Penetration

e)

Synthesis

42.

Which general replication step includes the assembly of newly synthesized viral components into complete virions

a)

Release

b)

Absorption

c)

Maturation

d)

Penetration

e)

Synthesis

43.

Which general replication step includes the entry of virion genome into the host cell

a)

Release

b)

Absorption

c)

Maturation

d)

Penetration

e)

Synthesis

44.

Which general replication step includes the host metabolic machinery is used to produce viral nucleic acid, capsid proteins, and other viral components.

a)

Release

b)

Absorption

c)

Maturation

d)

Penetration

e)

Synthesis

45.

Surrounding protein coat of a virus

(a)  

46.

Glycoprotein projection that serves to attach virions to host cell

(a)  

47.

Surrounding lipid bilayer of a virus

(a)  

48.

A virus with a nucleocapsid but no envelope

(a)  

49.

Virion's genome together with its capsid

(a)  

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