5) Commercial utilization of microbial products has become significantly popular as a result of their environmentally friendly nature. Production of these commodities which are easily degraded and also, therefore, non-toxic commonly utilizes

A) enzymes.

You are watching: Which of the following statements about biofilms is false?

B) organic acids.

C) organic solvents.

D) soap.

E) alcohol.

6) The formal system for classifying and naming organisms was occurred by

A) Robert Koch.

B) Ignaz Semmelweis.

C) Aristotle.

D) Carolus Linnaeus.

E) Louis Pasteur.

7) In the name Staphylococcus aureus, aureus is the

A) genus.

B) domajor name.

C) certain name

D) kingdom.

E) family members name.

8) A prokaryotic cell might possess each of the following cellular components EXCEPT

A) flagella.

B) a nucleus.

C) ribosomes.

D) a cell wall.

E) a cell membrane.

9) Which of the complying with is NOT connected with viruses?

A) organelles

B) nucleic acid

C) envelope

D) chemical reactions

E) protein coat


The bacterial shape of the cells in the scanning electron micrograph presented in Figure 1.1 would certainly finest be described as

A) bacillus.

B) spiral.

C) coccus.

D) ovoid.

E) columnar.

11) Protozoan motility structures include

A) cilia.

B) flagella.

C) pseudopods.

D) cilia and also pseudopods only.

E) cilia, flagella, and also pseudopods.

12) Viruses are not considered living organisms because they

A) cannot redevelop by themselves.

B) are structurally incredibly easy.

C) deserve to just be visualized making use of an electron microscope.

D) are generally connected through illness.

E) are common in nature.

13) The transmittable agent that causes AIDS is a

A) virus.

B) bacterium.

C) yeastern.

D) protozoan.

E) mold.

14) Which of the complying with is NOT a doprimary in the three-doprimary system?

A) animalia

B) archaea

C) bacteria

D) eukarya

15) Group of organisms into three domain names is based on

A) the existence of a cell wall.

B) the number of cells in the organism.

C) cellular organization.

D) nutritional requirements.

E) cellular proteins.

16) Archaea differ from bacteria in that archaea

A) have diverse cell wall compositions.

B) absence nuclei.

C) usage organic compounds for food.

D) redevelop by binary fission.

E) are prokaryotic.

17) Who is attributed via initially observing cells?

A) Robert Hooke

B) Anton van Leeuwenhoek

C) Robert Koch

D) Louis Pasteur

E) Carolus Linnaeus

18) Who is credited through first observing microorganisms?

A) Robert Hooke

B) Anton van Leeuwenhoek

C) Robert Koch

D) Louis Pasteur

E) Carolus Linnaeus

19) Biogenesis describes the

A) spontaneous generation of organisms from nonliving matter.

B) advance of life forms from preexisting life forms.

C) advancement of aseptic approach.

D) germ concept of illness.

20) If you were setting up an experiment to disprove spontaneous generation in a liquid medium, which of the following would be necessary to the experiment?

A) giving the liquid through nutrients

B) founding through a liquid that contains microorganisms

C) including antibiotics to the liquid

D) using a sterile liquid and eliminating expocertain to microorganisms

E) including carbon dioxide to the liquid

21) The debates sustaining spontaneous generation were lastly disproved by

A) Louis Pasteur.

B) Francesco Redi.

C) Rudolf Vircexactly how.

D) John Needham.

E) Lazzaro Spallanzani.

22) Regarding Louis Pasteur"s experiments with the S-neck flask, which of the following statements is TRUE?

A) Air exadjust was affiliated.

B) A food resource was provided.

C) The opportunity of contamicountry was rerelocated.

D) All preexisting microorganisms were eliminated.

E) All of the answer selections are correct.

23) The microbial process of converting sugars to alcohol is known as

A) fermentation.

B) pasteurization.

C) tyndallization.

D) lyophilization.

E) alcoholism.

24) Proof that a microbe might reason disease was gave by

A) Pasteur.

B) Lister.

C) Koch.

D) Wasserman.

E) Semmelweis.

5) The use of phenol (carbolic acid) as a wound disinfectant was first exercised by

A) Lister.

B) Semmelweis.

C) Pasteur.

D) Holmes.

E) Koch.

26) Mycology is the study of

A) mycoplasma.

B) mushrooms.

C) protozoa.

D) molds.

E) molds, yeast, and mushrooms.

27) The initially action for directly linking a microbe to a details illness according to Koch"s postulates is to

A) culture the blood or other body fluid from a diseased animal using nutrient tool.

B) inject a sample of blood or other body liquid from a diseased animal right into a healthy and balanced animal.

C) achieve a sample of blood or other body liquid from a diseased pet.

D) compare the blood of a sick animal to blood acquired from a healthy and balanced animal.

E) isolate microbes from the blood of healthy pets.

28) In which of the adhering to instances would certainly Koch"s postulates be utilized?

A) determicountry of the reason of a brand-new arising disease by scientists researching illness transmission

B) advance of a brand-new antibiotic in a pharmaceutical lab

C) determicountry of the cause of cancer in a patient

D) formulation of a vaccine against a new pathogen in a genetic engineering lab

E) whenever before the scientific strategy is provided to investigate a microorganic problem

29) Robert Koch established the cause of

A) smallpox.

B) anthrax.

C) diphtheria.


E) tuberculosis.

30) Which doctor is first linked through vaccination?

A) Ehrlich

B) Jenner

C) Lister

D) Koch

E) Escherich

31) Which of the following findings was vital for Edward Jenner"s vaccicountry process?

A) Expocertain to a milder disease create may develop immunity.

B) A weakened microorganism will not cause disease.

C) Someone that recovers from a disease will not gain that condition aacquire.

D) Disease is led to by virprovides.

E) Pathogenic microorganisms infect all human beings and animals in the exact same manner.

32) Penicillin was uncovered by accident by

A) Alexander Fleming.

B) Paul Ehwealthy.

C) Edward Jenner.

D) Robert Koch.

E) Joseph Lister.

33) Who was the initially scientist to go after a "magic bullet" that could be supplied to treat contagious disease?

A) Jenner

B) Pasteur

C) Ehrlich

D) Lister

E) Semmelweis

34) Fungal infections are stupassed away by

A) virologists.

B) bacteriologists.

C) parasitologists.

D) mycologists.

E) herpetologists.

35) Which condition has been got rid of via the usage of vaccines?

A) tuberculosis

B) measles

C) rubella

D) smallpox

E) influenza

36) Recombinant DNA refers to the

A) study of bacterial ribosomes.

B) study of the feature of genes.

C) interactivity in between huguy and also bacterial cells.

D) synthesis of proteins from genes.

E) DNA resulting once genes from one organism are placed right into another organism.

37) Molecular biology consists of the study of

A) DNA synthesis.

B) RNA replication.

C) protein synthesis.

D) enzyme function.

E) just how genetic indevelopment directs protein synthesis.

38) Microorganisms are vital to our life. Each of the complying with is an example of a beneficial feature of microorganisms EXCEPT

A) alternative fuel production.

B) bioremediation.

C) gene therapy.

D) farming.

E) increased number of illnesses.

39) The major food producers for other living organisms is/are

A) higher plants.

B) cyanobacteria.

C) algae.

D) greater plants and also algae.

E) better plants, cyanobacteria, and algae

40) Gene treatment is presently offered to treat all of the complying with conditions EXCEPT

A) significant merged immunodeficiency disease (SCID).

B) Duchenne"s muscular dystrophy.

C) cystic fibrosis.

D) LDL-receptor deficiency.

E) colon cancer.

41) Recombinant DNA innovation has come to be an significantly crucial part of our life. It is supplied for every one of the complying with EXCEPT

A) vaccine production.

B) improving food longevity.

C) synthesis of water.

D) drug production.

E) raising the nutritional worth of food.

42) Typical microbiota are commonly found in and on all the following body places EXCEPT the

A) skin.

B) mouth.

C) colon.

D) blood.

E) upper respiratory system.

43) Which of the following statements around biomovies is FALSE?

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

B) Biofilms in pipes deserve to block the circulation of water.

C) Biofilms in your body defend mucous membranes from harmful microbes.

D) Biofilms on clinical gadgets cause infections.

See more: How Many Days Until May 1 2017 ? Countdown To May Day

E) Biomovies on rocks carry out food for animal life.

44) Advancement of arising contagious disease have the right to be an outcome of every one of the adhering to EXCEPT