wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Unit 1 The Microbial World and You Review

Total questions: 59

Worksheet time: 30mins

Name
Class
Date
1.

What are microorganisms?

a)

Organisms that are too small to be seen with the unaided eye

b)

Organisms that can be seen with the naked eye

c)

Only bacteria

d)

Only viruses

2.

Microorganisms are essential to our life. Each of the following is an example of a beneficial function of microorganisms EXCEPT


a)

Alternative fuel production

b)

Bioremediation

c)

Gene Therapy

d)

Produce fermented foods

3.

Which of the following foods is produced by microorganisms?

a)

Bread

b)

Cheese

c)

Vinegar

d)

All of the above

4.

Microorganisms are used in manufacturing (e.g., cellulase) and ________.

a)

disease treatment

b)

space travel

c)

metal mining

d)

weather forecasting

5.

What is the purpose of aseptic technique in microbiology laboratories?

a)

To prevent contamination in medicine and in microbiology laboratories

b)

To increase the growth rate of bacteria

c)

To change the color of bacterial colonies

d)

To make bacteria resistant to antibiotics

6.

Who established the system of scientific nomenclature for naming microorganisms?

a)

Louis Pasteur

b)

Carolus Linnaeus

c)

Robert Koch

d)

Alexander Fleming

7.

Each organism has two names: the ______ and the ______ epithet.

a)

genus, specific

b)

family, general

c)

order, common

d)

class, unique

8.

The genus is ______ and underlined. The specific epithet is ______ case.

a)

capitalized, lower

b)

lower, capitalized

c)

underlined, capitalized

d)

capitalized, upper

9.

Which bacterium is named after Theodor Escherich and describes a habitat in the large intestine or colon?

a)

Staphylococcus aureus

b)

Escherichia coli

c)

Bacillus subtilis

d)

Streptococcus pneumoniae

10.

Staphylococcus aureus describes the clustered arrangement of the cells and the golden color of the colonies.

a)

staphylo-, aur-

b)

strepto-, chloro-

c)

diplo-, cyano-

d)

tetrad-, rubro-

11.

Which of the following is NOT a characteristic of bacteria?

a)

Prokaryotes

b)

Peptidoglycan cell walls

c)

Binary fission

d)

Multicellular

12.

Bacteria can obtain energy from organic chemicals, inorganic chemicals, or ________.

a)

photosynthesis

b)

fermentation

c)

respiration

d)

digestion

13.

Archaea live in __________ environments.

a)

extreme

b)

temperate

c)

urban

d)

aquatic

14.

Fungi have ______ cell walls.

a)

chitin

b)

cellulose

c)

pectin

d)

glycogen

15.

Protozoa may be motile via ______, cilia, or flagella.

a)

pseudopods

b)

spores

c)

capsules

d)

enzymes

16.

Algae have ______ cell walls.

a)

cellulose

b)

chitin

c)

peptidoglycan

d)

glycogen

17.

Algae use ______ for energy.

a)

photosynthesis

b)

fermentation

c)

chemosynthesis

d)

respiration

18.

Algae produce molecular ______ and organic compounds.

a)

oxygen

b)

hydrogen

c)

carbon dioxide

d)

nitrogen

19.

Viruses consist of DNA or ______ core.

a)

RNA

b)

Protein

c)

Lipid

d)

Carbohydrate

20.

The core of a virus is surrounded by a ______ coat.

a)

protein

b)

lipid

c)

carbohydrate

d)

nucleic acid

21.

Viruses are replicated only when they are in a ______ host cell.

a)

living

b)

dead

c)

artificial

d)

inactive

22.

Parasitic flatworms and round worms are called ______.

a)

helminths

b)

protozoa

c)

fungi

d)

bacteria

23.

Name the three domains in the classification of microorganisms.

a)

Bacteria, Archaea, Eukarya

b)

Bacteria, Protista, Fungi

c)

Archaea, Plantae, Animalia

d)

Eukarya, Fungi, Protista

24.

Which of the following is NOT a group under Eukarya?

a)

Protists

b)

Fungi

c)

Plants

d)

Viruses

25.

Who reported in 1665 that living things were composed of little boxes or cells?

a)

Anton Van Leeuwenhoek

b)

Robert Hooke

c)

Rudolf Virchow

d)

Louis Pasteur

26.

According to Rudolf Virchow, cells arise from ________ cells.

a)

preexisting

b)

dead

c)

newly formed

d)

foreign

e)

stem

27.

What does the Cell Theory state?

a)

All living things are composed of cells and come from preexisting cells.

b)

All living things are made only of tissues and organs.

c)

Cells are only found in plants, not animals.

d)

Living things can arise spontaneously from non-living matter.

28.

Who described live microorganisms that he observed in teeth scrapings, rain water, and peppercorn infusions between 1673-1723?

a)

Robert Hooke

b)

Anton Van Leeuwenhoek

c)

Rudolf Virchow

d)

Louis Pasteur

29.

The hypothesis that living organisms arise from nonliving matter is called ________.

a)

spontaneous generation

b)

biogenesis

c)

cell theory

d)

natural selection

30.

The alternative hypothesis that living organisms arise from preexisting life is called ________.

a)

Biogenesis

b)

Spontaneous generation

c)

Abiogenesis

d)

Panspermia

31.

Pasteur’s __________________ flask kept microbes out but let air in.

a)

S-shaped

b)

round-bottom

c)

flat-top

d)

conical

32.

Fermentation is the conversion of ________ to ________ to make beer and wine.

a)

sugar to alcohol

b)

protein to fat

c)

water to carbon dioxide

d)

oxygen to glucose

33.

What is pasteurization?

a)

Pasteurization is the application of a high heat for a short time.

b)

Pasteurization is the process of freezing food to preserve it.

c)

Pasteurization is the method of adding preservatives to milk.

d)

Pasteurization is the technique of fermenting dairy products.

34.

In 1835, who showed that a silk worm disease was caused by a fungus?

a)

Agostino Bassi

b)

Louis Pasteur

c)

Robert Koch

d)

Edward Jenner

35.

Who advocated hand washing to prevent transmission of puerperal fever from one obstetrical patient to another in the 1840s?

a)

Ignaz Semmelwise

b)

Louis Pasteur

c)

Joseph Lister

d)

Edward Jenner

36.

Who inoculated a person with cowpox virus in 1796 to protect them from smallpox?

a)

Edward Jenner

b)

Louis Pasteur

c)

Alexander Fleming

d)

Robert Koch

37.

Vaccination is derived from the Latin word vacca. What does vacca mean?

a)

Cow

b)

Sheep

c)

Horse

d)

Pig

38.

The protection given by vaccination is called ________.

a)

immunity

b)

infection

c)

allergy

d)

disease

39.

Chemotherapeutic agents used to treat infectious disease can be synthetic drugs or ________.

a)

antibiotics

b)

vitamins

c)

hormones

d)

enzymes

40.

Quinine from tree bark was long used to treat which disease?

a)

Malaria

b)

Tuberculosis

c)

Diabetes

d)

Influenza

41.

Who developed a synthetic arsenic drug, salvarsan, to treat syphilis in 1910?

a)

Paul Ehrlich

b)

Alexander Fleming

c)

Louis Pasteur

d)

Robert Koch

42.

In which decade were sulfonamides synthesized?

a)

1930s

b)

1920s

c)

1940s

d)

1950s

43.

Who discovered the first antibiotic in 1928?

a)

Alexander Fleming

b)

Louis Pasteur

c)

Robert Koch

d)

Joseph Lister

44.

In which decade was penicillin tested clinically and mass produced?

a)

1940s

b)

1920s

c)

1950s

d)

1960s

45.

Bacteriology is the study of ________.

a)

bacteria

b)

viruses

c)

fungi

d)

protozoa

46.

Mycology is the study of ________.

a)

fungi

b)

plants

c)

bacteria

d)

viruses

47.

Parasitology is the study of ________ and parasitic worms.

a)

protozoa

b)

bacteria

c)

viruses

d)

fungi

48.

Recombinant DNA is DNA made from ________.

a)

two different sources

b)

a single source

c)

proteins and lipids

d)

RNA molecules

49.

Who showed that genes encode a cell’s enzymes in 1942?

a)

Paul Berg

b)

George Beadle and Edward Tatum

c)

Oswald Avery, Colin MacLeod, and Maclyn McCarty

d)

Francois Jacob and Jacques Monod

50.

Who showed that DNA was the hereditary material in 1944?

a)

Paul Berg

b)

George Beadle and Edward Tatum

c)

Oswald Avery, Colin MacLeod, and Maclyn McCarty

d)

Francois Jacob and Jacques Monod

51.

Francois Jacob and Jacques Monod discovered the role of ________ in protein synthesis (1961).

a)

mRNA

b)

DNA

c)

tRNA

d)

rRNA

52.

Bacteria degrade organic matter in ________.

a)

sewage

b)

air

c)

plastic

d)

metal

53.

Microbes that are pathogenic to insects are alternatives to ________ in preventing insect damage to agricultural crops and disease transmission.

a)

chemical pesticides

b)

fertilizers

c)

herbicides

d)

growth hormones

54.

Bacillus thuringiensis infections are fatal in many insects but harmless to other animals, including humans, and ________.

a)

plants

b)

birds

c)

fish

d)

fungi

55.

Through genetic engineering, bacteria and fungi can produce a variety of proteins including vaccines and ________.

a)

enzymes

b)

carbohydrates

c)

lipids

d)

vitamins

56.

Missing or defective genes in human cells can be replaced in ________.

a)

gene therapy

b)

chemotherapy

c)

radiation therapy

d)

immunotherapy

57.

What is the function of normal microbiota?

a)

Cause disease

b)

Prevent growth of pathogens

c)

Produce toxins

d)

None of the above

58.

Resistance is the ability of the body to ______.

a)

ward off disease

b)

increase weight rapidly

c)

digest food quickly

d)

lose energy easily

59.

Emerging infectious diseases (EID) are:

a)

Old diseases with new treatments

b)

New diseases and diseases increasing in incidence

c)

Diseases that only affect animals

d)

Diseases that are always fatal