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Microbiology Ch. 1/2

Total questions: 88

Worksheet time: 44mins

Name
Class
Date
1.

Which of the following pairs is mismatched?

a)

Pasteur - proof of biogenesis

b)

Ehrlich - chemotherapy

c)

Koch - aseptic surgery

d)

Jenner - vaccination

2.

Archaea differ from bacteria in that archaea

a)

Use organic compounds for food.

b)

Lack peptidoglycan.

c)

Reproduce by binary fission.

d)

Lack nuclei.

e)

Are prokaryotic.

3.

Which one of the following does NOT belong with the others?

a)

Eukarya

b)

Archaea

c)

Fungi

d)

Bacteria

4.

Which of the following processes in making blue jeans is incorrectly matched?

a)

Plastic - bacterial PHA

b)

Cotton - fungal hyphae

c)

Debleaching - bacterial enzyme

d)

Stone-washed - fungal enzyme

e)

Blue dye - E. coli indigo

5.

Which of the following CANNOT be made by using recombinant DNA technology?

a)

Pest-resistant crops

b)

Vaccines

c)

Life

d)

Pharmaceutical drugs

e)

Human hormones

6.

Which of the following lack a nucleus?

a)

Protozoa

b)

Fungi

c)

Bacteria

d)

None of these

e)

Animalia

7.

Which of the following statements about fungi is true?

a)

All require organic material for growth.

b)

All are multicellular.

c)

All are plants.

d)

All grow using sunlight and carbon dioxide.

e)

All are prokaryotic.

8.

An agent that reproduces in cells but is NOT composed of cells and contains RNA as its genetic material is a(n)

a)

Virus.

b)

Helminth.

c)

Alga.

d)

Fungus.

e)

Bacterium.

9.

Which of the following organisms lack cell walls?

a)

Animalia

b)

Bacteria

c)

Fungi

d)

Plantae

10.

Which of the following statements is false?

a)

All bacteria lack nuclear membranes.

b)

All fungi have nuclear membranes.

c)

All fungi are multicellular.

d)

All viruses are parasites.

e)

All protozoa are unicellular.

11.

Which of the following findings was essential for Jenner's vaccination process?

a)

A weakened microorganism may produce immunity.

b)

Someone who recovers from a disease will not acquire that disease again.

c)

A weakened microorganism will not cause disease.

d)

Vaccination provides immunity.

e)

Disease is caused by viruses.

12.

Who observed cells in plant material?

a)

Hooke

b)

van Leeuwenhoek

c)

Pasteur

d)

Lister

e)

Koch

13.

In the name Escherichia coli, coli is the

a)

Specific epithet.

b)

Discoverer.

c)

Domain.

d)

Genus.

e)

Kingdom.

14.

A multicellular organism that has a mouth and lives in an animal host is a(n)

a)

Alga.

b)

Bacterium.

c)

Virus.

d)

Helminth.

e)

Fungus.

15.

Who proved that microorganisms cause disease?

a)

Semmelweis

b)

Pasteur

c)

Koch

d)

van Leeuwenhoek

e)

Fleming

16.

Which of the following statements about insect control by microorganisms is true?

a)

The microorganisms may cause disease in other animals.

b)

The microorganisms are specific for the insect pest.

c)

This technique is just as dangerous as the use of chemical pesticides.

d)

The microorganisms are permanent in the environment.

e)

The insects develop resistance to the microorganisms.

17.

Who was the first to observe microorganisms with a microscope?

a)

Weizmann

b)

Hooke

c)

Koch

d)

Pasteur

e)

van Leeuwenhoek

18.

Regarding Pasteur's experiments with the S-neck flask, which of the following statements is true?

a)

Any possibility of contamination was removed.

b)

All microorganisms were killed before beginning.

c)

All of these.

d)

There was air involved.

e)

There was a food source involved.

19.

Regarding the experiments that "proved" spontaneous generation, which of the following statements is probably true?

a)

The food source could not support life.

b)

Too much heat was applied.

c)

Excess carbon dioxide was present.

d)

Air was lacking.

e)

Microorganisms were already present.

20.

Which of the following pairs is mismatched?

a)

Immunologist - studies ecology of Legionella pneumophila

b)

Virologist - studies human immunodeficiency virus

c)

Microbial physiologist - studies fermentation of sourdough bread

d)

Molecular biologist - studies recombinant DNA

e)

Microbial ecologist - studies bacteria that degrade oil

21.

Which of the following statements about viruses is false?

a)

They have both DNA and RNA.

b)

They lack cells.

c)

They cannot metabolize nutrients.

d)

They cannot reproduce themselves.

e)

They are parasites.

22.

Which of the following statements about protozoa is false?

a)

All are eukaryotic.

b)

All have complex cells.

c)

All are unicellular.

d)

They are classified by their method of locomotion.

e)

They have rigid cell walls.

23.

Regular use of antibacterial cleaning products

a)

Prevents occurrence of infections, Is necessary for good health, and Prevents bacteria from growing

b)

Prevents bacteria from growing.

c)

Prevents occurrence of infections.

d)

Is necessary for good health.

e)

Promotes survival of bacteria that are resistant.

24.

Which of the following is NOT a domain in the three-domain system?

a)

Archaea

b)

Animalia

c)

Bacteria

d)

Eukarya

25.

Which of the following statements about biofilms is false?

a)

Biofilms in your body protect mucous membranes from harmful microbes.

b)

Biofilms in pipes block the flow of water.

c)

Biofilms on rocks provide food for animals.

d)

Biofilms on medical implants cause infections.

e)

Compared to free-living bacteria, biofilms are more sensitive to antibiotics.

26.

What is the type of bond between the hydrogen of one molecule and the nitrogen of another molecule?

a)

Hydrogen bond

b)

Hydrophobic bond

c)

Disulfide bond

d)

Ionic bond

e)

Covalent bond

27.

Which type of molecule contains the alcohol glycerol?

a)

Nucleic acid

b)

Lipid

c)

Carbohydrate

d)

Protein

28.

The antimicrobial drug imidazole inhibits sterol synthesis. This would most likely interfere with

a)

Genes.

b)

Eukaryotic plasma membranes.

c)

Prokaryotic plasma membranes.

d)

Fungal cell walls.

e)

Bacterial cell walls.

29.

Identify the following reaction: Glycine + Lysine --> Dipeptide + H2O

a)

Reversible reaction

b)

Hydrolysis reaction

c)

Dehydration synthesis reaction

d)

Covalent reaction

e)

Exchange reaction

30.

Which type of molecule contains -NH2 groups?

a)

Carbohydrate

b)

Lipid

c)

Protein

d)

Nucleic acid

31.

Which of the following is a base?

a)

H2O --> H+ + OH-

b)

H2CO

c)

NaOH --> Na+ + OH-

d)

C2H5OCOOH --> H+ + C2H5OCOO-

e)

C2H5OH

32.

An E. coli culture that has been growing at 37°C is moved to 25°C. Which of the following changes must be made in its plasma membrane?

a)

The number of phosphate groups must increase.

b)

The number of unsaturated chains must increase.

c)

The number of saturated chains must increase.

d)

No changes are necessary.

e)

The viscosity must increase.

33.

Which of the following is the type of bond holding K+ and I- ions in KI?

a)

Ionic bond

b)

Covalent bond

c)

Hydrogen bond

34.

Identify the following reaction: Glucose + Fructose --> Sucrose + Water

a)

Reversible reaction

b)

Hydrolysis reaction

c)

Dehydration synthesis reaction

d)

Exchange reaction

e)

Ionic reaction

35.

Structurally, ATP is most like which type of molecule?

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic acid

36.

Which molecule is composed of a chain of amino acids?

a)

Nucleic acid

b)

Carbohydrate

c)

Lipid

d)

Protein

37.

Which type of molecule NEVER contains a phosphate group?

a)

Lipid

b)

Protein

c)

Nucleic acid

d)

Carbohydrate

38.

Which type of molecule is composed of (CH2O) units?

a)

Nucleic acid

b)

Protein

c)

Carbohydrate

d)

Lipid

39.

Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the radioisotope 32P. After a 48-hour incubation, the 32P would most likely be found in the S. cerevisiae's

a)

Water.

b)

Cell wall.

c)

Plasma membrane.

d)

Carbohydrates.

e)

Proteins.

40.

Identify the following reaction: NH4OH ⇌ NH3 + H2O

a)

Reversible reaction

b)

Dehydration synthesis reaction

c)

Ionic reaction

d)

Exchange reaction

e)

Hydrolysis reaction

41.

Which of the following is the type of bond between molecules of water in a beaker of water?

a)

Covalent bond

b)

Ionic bond

c)

Hydrogen bond

42.

Oil-degrading bacteria are naturally present in the environment but cannot degrade an oil spill fast enough to avoid ecological damage. How can the actions of these bacteria be sped up?

a)

Provide oil for them.

b)

Provide nitrogen and phosphorus.

c)

Add water.

d)

Provide sugar as a carbon source.

e)

Add NaCl.

43.

Using the information in Table 2.1, calculate the number of moles in 92 grams of ethanol, C2H5OH.

a)

 

Can't tell

b)

3

c)

4

d)

1

e)

2

44.

Which of the following statements about the reactions in Table 2.2 is false?

a)

 

They are dissociation reactions.

b)

 

They are ionization reactions.

c)

 

They are reversible reactions.

d)

 

They occur when the reactants are dissolved in water.

e)

 

They are exchange reactions.

45.

Using the information in Table 2.1, calculate the molecular weight of ethanol, C2H5OH.

a)

 

Can't tell

b)

33

c)

46

d)

96

e)

34

46.
a)

 

Its atomic weight is 12.

b)

 

It has 6 electrons orbiting the nucleus.

c)

 

It has 12 neutrons in its nucleus.

d)

 

Its atomic number is 6.

e)

 

It has 6 protons in its nucleus.

47.
a)

 

It has 8 neutrons in its nucleus.

b)

 

It has 8 protons in its nucleus.

c)

 

Its atomic number is 8.

d)

 

It has 8 electrons in its nucleus.

e)

 

Its atomic weight is 16.

48.

Identify the following reaction: H2O + CO2 ⇌ H2CO3

a)

 

Exchange reaction

b)

 

Reversible reaction

c)

 

Dehydration synthesis reaction

d)

 

Hydrolysis reaction

e)

 

Covalent reaction

49.

Which compound in Figure 2.1 is an ester?

a)

b

b)

e

c)

a

d)

c

e)

d

50.

In Figure 2.1, which is an alcohol?

a)

c

b)

a

c)

b

d)

e

e)

d

51.

Which of the following requirements was NOT necessary for Pasteur to disprove spontaneous generation?

a)

 

Keeping microorganisms out

b)

 

Providing a food source that would support growth

c)

 

Supplying air

d)

 

Identifying bacteria

e)

 

Removing microorganisms that were initially present

52.

Bacteria differ from viruses in that bacteria

a)

 

Can live without a host.

b)

 

Have DNA and RNA.

c)

 

All of these.

d)

 

Are composed of cells.

53.

Which of the following is the best definition of biotechnology?

a)

 

The use of living organisms to make desired products

b)

 

The development of recombinant DNA technology

c)

 

Bacterial production of foods

d)

 

The curing of diseases

e)

 

The use of microorganisms in sewage treatment

54.

You are observing a cell through a microscope and note that it has no apparent nucleus. You conclude that it most likely

a)

 

Moves by pseudopods.

b)

 

Is a plant cell.

c)

 

Has a peptidoglycan cell wall.

d)

 

Has a cellulose cell wall.

e)

 

Is part of a multicellular animal.

55.

Classification of organisms in the three domains is based on

a)

 

Nucleus.

b)

 

Number of cells.

c)

 

Cell wall.

d)

 

Type of cell.

e)

 

Nutritional type.

56.

You are looking at a white cottony growth on a culture medium. Microscopic examination reveals it is multicellular. Which of the following conclusions about this organism is false?

a)

 

It is eukaryotic.

b)

 

It has cell walls.

c)

 

It is a bacterium.

d)

 

It absorbs organic nutrients.

e)

 

It has DNA enclosed in a nucleus.

57.

Which of the following statements is true?

a)

 

Viruses cannot reproduce outside a host cell.

b)

 

Fungi are plants.

c)

 

Algae are parasites.

d)

 

Protozoa have rigid cell walls.

e)

 

Bacteria cannot move.

58.

Which of the following pairs is mismatched?

a)

 

NaOH ⇌ Na+ + OH- - base

b)

 

HF ⇌ H+ + F- - acid

c)

 

H2SO4 ⇌ 2H+ + SO42- - acid

d)

 

MgSO4 ⇌ Mg2+ + SO42- - salt

e)

 

KH2PO4 ⇌ K+ + H2PO4- - acid

59.

What kind of bond is at the arrow in Figure 2.3?

a)

 

Single covalent bond

b)

 

Hydrogen bond

c)

 

Double covalent bond

d)

 

Peptide bond

e)

 

Ionic bond

60.

Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the radioisotope 35S. After a 48-hour incubation, the 35S would most likely be found in the S. cerevisiae's

a)

 

Water.

b)

 

Proteins.

c)

 

Carbohydrates.

d)

 

Nucleic acids.

e)

 

Lipids.

61.

What is the type of bond between ions in salt?

a)

 

Covalent bond

b)

 

Hydrogen bond

c)

 

Ionic bond

62.

What is the type of bond holding hydrogen and oxygen atoms in the H2O molecule?

a)

 

Ionic bond

b)

 

Covalent bond

c)

 

Hydrogen bond

63.

The following chemical reaction is used to remove chlorine from water. What type of reaction is it?
HClO + Na2SO3 Na2SO4 + HCl

a)

 

Ionic synthesis reaction

b)

 

Reversible synthesis reaction

c)

 

Hydrolysis synthesis reaction

d)

 

Dehydration synthesis reaction

e)

 

Exchange synthesis reaction

64.

What do genes consist of?

a)

Lipids

b)

Proteins

c)

Carbohydrates

d)

 Nucleic acids

65.

Identify the following reaction: Sucrose + H2O --> Glucose + Fructose

a)

 

Dehydration synthesis reaction

b)

 

Exchange reaction

c)

 

Reversible reaction

d)

 

Hydrolysis reaction

e)

 

Covalent reaction

66.

Starch, dextran, glycogen, and cellulose are polymers of

a)

 

Amino acids.

b)

 

Nucleic acids.

c)

 

Fatty acids.

d)

 

Glucose.

e)

 

Acids.

67.

Which compound in Figure 2.1 is an organic acid?

a)

e

b)

a

c)

b

d)

c

e)

d

68.

A nucleated, green cell that moves by means of flagella is a(n)

a)

 

Virus.

b)

 

Bacterium.

c)

 

Fungus.

d)

 

Alga.

e)

 

Helminth.

69.

Fungi differ from bacteria in that fungi

a)

 

Spoil food.

b)

 

Have cell walls.

c)

 

Have a nucleus.

d)

 

Are cellular.

e)

 

Have DNA.

70.

A multicellular organism that has chitin cell walls and absorbs organic material is a(n)

a)

 

Virus.

b)

 

Bacterium.

c)

 

Fungus.

d)

 

Alga.

e)

 

Helminth.

71.

Which of the following pairs is mismatched?

a)

 

Normal microbiota - harmful

b)

 

Pathogen - disease causing

c)

 

Chemotherapy - treatment of disease

d)

 

Vaccine - a preparation of microorganisms

e)

 

Penicillin - antibiotic

72.

Which of the following groups include members that lack DNA?

a)

Bacteria

b)

Viruses

c)

Fungi

d)

Helminths

e)

Protozoa

73.

Which of the following does NOT belong with the others?

a)

Protista

b)

Helminthes

c)

Plantae

d)

Fungi

e)

Animalia

74.

Which of the following is a scientific name?

a)

 

Hansen's bacillus

b)

 

Acid-fast bacteria

c)

 

Mycobacterium leprae

d)

 

Leprosy bacterium

75.

Who disproved the theory of spontaneous generation?

a)

 van Leeuwenhoek

b)

Pasteur

c)

Koch

d)

Hooke

e)

Virchow

76.

What is the type of bond between carbon, hydrogen, and oxygen atoms in organic molecules?

a)

 

Covalent bond

b)

 

Hydrogen bond

c)

 

Ionic bond

77.

Identify the following reaction: Lactose + H2O --> Glucose + Galactose

a)

 

Dehydration synthesis reaction

b)

 

Exchange reaction

c)

 

Hydrolysis reaction

d)

 

Reversible reaction

e)

 

Ionic reaction

78.

Which are the primary molecules making up plasma membranes in cells?

a)

Proteins

b)

Lipids

c)

Carbohydrates

d)

 Nucleic acids

79.

Two glucose molecules are combined to make a maltose molecule. What is the chemical formula for maltose?

a)

C12H23O10

b)

C12H22O11

c)

C12H24O12

d)

C3H6O3

e)

C6H12O6

80.

Which of the following statements is false?

a)

 

Water freezes from the top down.

b)

 

Water is a part of a dehydration reaction.

c)

 

Water molecules are formed by hydrolysis.

d)

 

Water is a polar molecule.

e)

 

Salts readily dissolve in water.

81.

Antacids neutralize acid by the following reaction. Identify the salt.
Mg(OH)2 + 2HCl MgCl2 + H2O

a)

 

Mg(OH)2

b)

 

MgCl2

c)

 

None of these

d)

 

HCl

e)

 

H2O

82.

Use Figure 2.2 to answer the following question. Archaea differ from bacteria in the composition of the cell membrane lipids. Archaea have ether-bonded lipids, shown in part ________ of Figure 2.2, and bacteria have ester-bonded lipids, shown in part ________ of Figure 2.2.

a)

 

b; c

b)

 

c; d

c)

 

d; c

d)

 

b; a

e)

 

a; d

83.

Which of the following pairs is mismatched?

a)

 

van Leeuwenhoek - germ theory

b)

 

Hooke - cell theory

c)

 

Pasteur - fermentation

d)

 

Jenner - vaccines

e)

 

Lister - aseptic surgery

84.

Which of the following pairs is mismatched?

a)

 

Jacob and Monod - microbial genetics

b)

 

Jenner - immunology

c)

 

Winogradsky - microbial ecology

d)

 

Lancefield - immunology

e)

 

Weizmann - virology

85.

Which of the following is NOT an example of biotechnology?

a)

 

Bacterial production of French bread

b)

 

Bacterial production of human insulin

c)

 

Bacterial production of yogurt

d)

 

Bacterial production of vinegar

e)

 

Bacterial degradation of a dead animal

86.

Which one of the following does NOT belong with the others?

a)

Cellulose

b)

Chitin

c)

Peptidoglycan

d)

Nucleus

87.

Identify the following reaction: HCl + NaHCO3 --> NaCl + H2CO3

a)

 

Reversible reaction

b)

 

Hydrolysis reaction

c)

 

Exchange reaction

d)

 

Ionic reaction

e)

 

Dehydration synthesis reaction

88.

What kind of bond is at the arrow in Figure 2.4?

a)

 

Disulfide bridge

b)

 

Double covalent bond

c)

 

Hydrogen bond

d)

 

Ionic bond

e)

 

Peptide bond

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