One of the reasons Koch was able to show the cause of disease was that he could grow them a. in a pure culture b. in an animal host c. in a tissue culture d. in chicken eggs

One of the reasons Koch was able to show the cause of disease
was that he could grow them
a. in a pure culture
b. in an animal host
c. in a tissue culture
d. in chicken eggs
by

1 Answer

Answer :

a. in a pure culture
by

Related questions

Which one of the following is not a part of Koch‘s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from a mixed culture c. The pure cultured organism is inoculated into a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.

Description : Which one of the following is not a part of Koch s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from ... a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.

Last Answer : d. The same microorganism must be present in every case of the disease.

Which one of the following statements applies to smallpox? a. The disease is associated with animal contact. b. The disease has been eradicated worldwide. c. It can be sexually-transmitted. d. The virus can lie dormant in host cells.

Description : Which one of the following statements applies to smallpox? a. The disease is associated with animal contact. b. The disease has been eradicated worldwide. c. It can be sexually-transmitted. d. The virus can lie dormant in host cells.

Last Answer : b. The disease has been eradicated worldwide.

Who was the inventor of the Petri dish? A.R.J. Petri, an assistant of R. Koch B.A famous French cook C.Italian glass blower from Petri, Italy D.None of the above

Description : Who was the inventor of the Petri dish? A.R.J. Petri, an assistant of R. Koch B.A famous French cook C.Italian glass blower from Petri, Italy D.None of the above

Last Answer : A.R.J. Petri, an assistant of R. Koch

Who was the inventor of the Petri dish? A- R.J. Petri, an assistant of R. Koch B- A famous French cook C- Italian glass blower from Petri, Italy D- None of the above

Description : Who was the inventor of the Petri dish? A- R.J. Petri, an assistant of R. Koch B- A famous French cook C- Italian glass blower from Petri, Italy D- None of the above

Last Answer : R.J. Petri, an assistant of R. Koch

The five-kingdom system of classification was set up by A- Louis Pasteur B- Robert Whittaker C- Robert Koch D- Masaki Ogata

Description : The five-kingdom system of classification was set up by A- Louis Pasteur B- Robert Whittaker C- Robert Koch D- Masaki Ogata

Last Answer : Robert Whittaker

Who was the inventor of the Petri dish? A-R.J. Petri, an assistant of R. Koch B-A famous French cook C-Italian glass blower from Petri, Italy D-None of the above

Description : Who was the inventor of the Petri dish? A-R.J. Petri, an assistant of R. Koch B-A famous French cook C-Italian glass blower from Petri, Italy D-None of the above

Last Answer : R.J. Petri, an assistant of R. Koch

Which of the following scientists came up with the first vaccine for rabies? a. Koch b. Pasteur c. Lister d. Snow

Description : Which of the following scientists came up with the first vaccine for rabies? a. Koch b. Pasteur c. Lister d. Snow

Last Answer : b. Pasteur

Which of the following surgeons stopped a cholera epidemic in London by removing the pump handle of a contaminated pump? a. Lister b. Snow c. Koch d. Pasteur

Description : Which of the following surgeons stopped a cholera epidemic in London by removing the pump handle of a contaminated pump? a. Lister b. Snow c. Koch d. Pasteur

Last Answer : b. Snow

Which of the following early natural philosophers coined the term cells? a. Lister b. Koch c. Hooke d. Leeuwenhoek

Description : Which of the following early natural philosophers coined the term cells? a. Lister b. Koch c. Hooke d. Leeuwenhoek

Last Answer : c. Hooke

Match the lab with the correct set of identified diseases. a. Pasteur: tetanus and tuberculosis b. Koch: anthrax and rabies c. Koch: cholera and tuberculosis d. Pasteur: diphtheria and typhoid

Description : Match the lab with the correct set of identified diseases. a. Pasteur: tetanus and tuberculosis b. Koch: anthrax and rabies c. Koch: cholera and tuberculosis d. Pasteur: diphtheria and typhoid

Last Answer : c. Koch: cholera and tuberculosis

Who was the first person to see bacterial cells with the microscope? a. Pasteur b. Koch c. Leeuwenhoek d. Hooke

Description : Who was the first person to see bacterial cells with the microscope? a. Pasteur b. Koch c. Leeuwenhoek d. Hooke

Last Answer : c. Leeuwenhoek

Golden Era of Microbiology period began with work of ---------- Scientist A Francesco Redi B Julius Petri C Robert Koch D Louis Pasteur

Description : Golden Era of Microbiology period began with work of ---------- Scientist A Francesco Redi B Julius Petri C Robert Koch D Louis Pasteur

Last Answer : D Louis Pasteur

one way to get a pure culture is by using _____. a. Aseptic technique b. Pour-plate method c. Streak-plate method d. A and C e. B and C

Description : one way to get a pure culture is by using _____. a. Aseptic technique b. Pour-plate method c. Streak-plate method d. A and C e. B and C

Last Answer : d. A and C

Attaches to host tissue by hooks. a. Necator b. Trichinella c. Enterobius

Description : Attaches to host tissue by hooks. a. Necator b. Trichinella c. Enterobius

Last Answer : a. Necator

Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Description : Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Last Answer : d. tissue culture

An intermediate host is a. Where parasite asexual cycle occurs. b. Always a nonhuman host c. Where parasite sexual cycle occurs. d. The human host between two other animal hosts.

Description : An intermediate host is a. Where parasite asexual cycle occurs. b. Always a nonhuman host c. Where parasite sexual cycle occurs. d. The human host between two other animal hosts.

Last Answer : a. Where parasite asexual cycle occurs.

Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct

Description : Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct

Last Answer : d. A-C are correct

Tissue tropism refers to a. what tissues grow due to a viral infection. b. what tissues are resistant to viral infection. c. what organisms a virus infects. d. what cells or tissues a virus infects.

Description : Tissue tropism refers to a. what tissues grow due to a viral infection. b. what tissues are resistant to viral infection. c. what organisms a virus infects. d. what cells or tissues a virus infects.

Last Answer : d. what cells or tissues a virus infects.

.Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Description : .Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Last Answer : move

A disease producing species occurring in a mixed culture can often be selected on the basisofits A- pathogenic properties B- special carbon source C- special nitrogen source D-.none of these

Description : A disease producing species occurring in a mixed culture can often be selected on the basisofits A- pathogenic properties B- special carbon source C- special nitrogen source D-.none of these

Last Answer : pathogenic properties

________ occurs if a microbial member of the normal microbiota should gain access to sterile tissue. a. Pathogenicity Islands b. Exogenous Infection c. Endogenous Infection d. Polymicrobial Disease

Description : ________ occurs if a microbial member of the normal microbiota should gain access to sterile tissue. a. Pathogenicity Islands b. Exogenous Infection c. Endogenous Infection d. Polymicrobial Disease

Last Answer : c. Endogenous Infection

_____ refers to bacteria that grow and spread through the blood. a. Chronic Disease b. Septicemiac. Acute Disease d. Bacteremia

Description : _____ refers to bacteria that grow and spread through the blood. a. Chronic Disease b. Septicemia c. Acute Disease d. Bacteremia

Last Answer : b. Septicemia

Newborns exposed to Chlamydia trachomatis from an infected mother may experiencea. Toxic Shock Syndrome or Staphylococcal Skin Disease. b. Dental Caries When the Teeth Grow In. c. Destruction of the Reproductive Organs. d. Disease of the Eyes or Lungs.

Description : Newborns exposed to Chlamydia trachomatis from an infected mother may experience a. Toxic Shock Syndrome or Staphylococcal Skin Disease. b. Dental Caries When the Teeth Grow In. c. Destruction of the Reproductive Organs. d. Disease of the Eyes or Lungs.

Last Answer : d. Disease of the Eyes or Lungs.

Which one of the following is an example of an indirect method of disease transmission? a. Coughing b. Droplet transmission c. A mosquito bite d. An animal bite

Description : Which one of the following is an example of an indirect method of disease transmission? a. Coughing b. Droplet transmission c. A mosquito bite d. An animal bite

Last Answer : c. A mosquito bite

On which disease did Robert Koch work? A. Tuberculosis (Answer) B. Cholera C. Malaria

Description : On which disease did Robert Koch work? A. Tuberculosis (Answer) B. Cholera C. Malaria

Last Answer : A. Tuberculosis (Answer)

If you have vegan parents who are totally against ingesting any animal products, including cows milk, chicken eggs, anything animal, is it OK for the mother to breastfeed?

Description : If you have vegan parents who are totally against ingesting any animal products, including cows milk, chicken eggs, anything animal, is it OK for the mother to breastfeed?

Last Answer : I would think that under the careful supervision of a Pediatrician it would be OK, as long as the mother would listen to the advice of the Dr.

What is the advantage of a recombinant subunit vaccine? a. it can't cause disease b. adverse reactions are rare because only the important subunits of the antigen are included c. the vaccine is not made from blood fragments d. A-C are correct

Description : What is the advantage of a recombinant subunit vaccine? a. it can't cause disease b. adverse reactions are rare because only the important subunits of the antigen are included c. the vaccine is not made from blood fragments d. A-C are correct

Last Answer : d. A-C are correct

Why are inactivated vaccines safer than attenuated vaccines? a. they can't mutate and cause the disease b. they last a lifetime c. they are easier to administer d. they aren't any better

Description : Why are inactivated vaccines safer than attenuated vaccines? a. they can't mutate and cause the disease b. they last a lifetime c. they are easier to administer d. they aren't any better

Last Answer : a. they can't mutate and cause the disease

Cause of pinworm disease. a. Trichinella b. Enterobius c. Ascaris

Description : Cause of pinworm disease. a. Trichinella b. Enterobius c. Ascaris

Last Answer : b. Enterobius

This funqal disease is the most common cause of nonbacterial pneumonia in immunocompromised individuals. a. Blastomycosis b. Pneumocystis pneumonia c. Aspergillosis d. Coccidioidomycosis

Description : This funqal disease is the most common cause of nonbacterial pneumonia in immunocompromised individuals. a. Blastomycosis b. Pneumocystis pneumonia c. Aspergillosis d. Coccidioidomycosis

Last Answer : b. Pneumocystis pneumonia

Which of the following organisms cause necrotizing fasciitis, or the flesh-eating disease? a. Group A streptococcus b. Group B streptococcus c. Staphylococcus aureus. d. strep viridins group

Description : Which of the following organisms cause necrotizing fasciitis, or the flesh-eating disease? a. Group A streptococcus b. Group B streptococcus c. Staphylococcus aureus. d. strep viridins group

Last Answer : a. Group A streptococcus

: All the following are among the opportunistic organisms that may cause nosocomial disease except: a. Pseudomonas aeruginosa. b. Escherichia coli. c. Staphylococcus aureus. d. Mycobacterium leprae.

Description : : All the following are among the opportunistic organisms that may cause nosocomial disease except: a. Pseudomonas aeruginosa. b. Escherichia coli. c. Staphylococcus aureus. d. Mycobacterium leprae.

Last Answer : d. Mycobacterium leprae.

Which of the following normal microbiota cause disease in immunocompromised patients? a. Neisseria b. Streptococcus c. Corynebacterium d. Proprionibacterium

Description : Which of the following normal microbiota cause disease in immunocompromised patients? a. Neisseria b. Streptococcus c. Corynebacterium d. Proprionibacterium

Last Answer : b. Streptococcus

_____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Description : _____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Last Answer : a. Selective toxicity

The concentration of an antibiotic causing harm to the host is called a. Toxic dosage Level. b. Therapeutic dosage level. c. Minimal inhibitory concentration. d. Chemotherapeutic index.

Description : The concentration of an antibiotic causing harm to the host is called a. Toxic dosage Level. b. Therapeutic dosage level. c. Minimal inhibitory concentration. d. Chemotherapeutic index.

Last Answer : a. Toxic dosage Level.

The stomach is a chemical barrier to infection because the stomach a. Contains bile. b. Harbors helicobacterpylori, a member of the host microbiota. c. Possesses defensive cells. d. Has an acid ph.

Description : The stomach is a chemical barrier to infection because the stomach a. Contains bile. b. Harbors helicobacterpylori, a member of the host microbiota. c. Possesses defensive cells. d. Has an acid ph.

Last Answer : d. Has an acid ph.

Factors affecting virulence may include a. The presence of pathogenicity islands. b. Their ability to penetrate the host. c. The infectious dose. d. All the above (a—c) are correct.

Description : Factors affecting virulence may include a. The presence of pathogenicity islands. b. Their ability to penetrate the host. c. The infectious dose. d. All the above (a—c) are correct.

Last Answer : d. All the above (a—c) are correct.

As a general rule, tapeworms require a. Two Hosts. b. A Fish Host. c. Only A Human Host. d. No Host At All.

Description : As a general rule, tapeworms require a. Two Hosts. b. A Fish Host. c. Only A Human Host. d. No Host At All.

Last Answer : a. Two Hosts.

Snail is the intermediate host. a. Blood fluke b. Echinococcus c. Intestinal fluke

Description : Snail is the intermediate host. a. Blood fluke b. Echinococcus c. Intestinal fluke

Last Answer : a. Blood fluke

Lassa fever is transmitted by the zoonotic host, _______ which are used for food. a. fruit bats b. bush rats c. monkeys d. rabbits

Description : Lassa fever is transmitted by the zoonotic host, _______ which are used for food. a. fruit bats b. bush rats c. monkeys d. rabbits

Last Answer : b. bush rats

When a viral nucleic acid becomes part of the host cell chromosome it is called _____. a. lysis b. lysogeny c. maturation d. latent

Description : When a viral nucleic acid becomes part of the host cell chromosome it is called _____. a. lysis b. lysogeny c. maturation d. latent

Last Answer : b. lysogeny

The oncogene theory states that transforming genes a. Normally Occur In The Host Genome. b. Can Exist In Viruses. c. Are Not Of Viral Origin. d. All Of The Above (A—C) Are Correct.

Description : The oncogene theory states that transforming genes a. Normally Occur In The Host Genome. b. Can Exist In Viruses. c. Are Not Of Viral Origin. d. All Of The Above (A—C) Are Correct.

Last Answer : d. All Of The Above (A—C) Are Correct

Which one of the following statements is NOT correct concerning the reproductive cycle of Chlamydia? a. Reticulate Bodies Are Infectious. b. Reticulate Bodies Reorganize Into Elementary Bodies. c. Elementary Bodies Infect Host Cells. d. Elementary Bodies Transform Into Reticulate Bodies.

Description : Which one of the following statements is NOT correct concerning the reproductive cycle of Chlamydia? a. Reticulate Bodies Are Infectious. b. Reticulate Bodies Reorganize Into Elementary Bodies. c. Elementary Bodies Infect Host Cells. d. Elementary Bodies Transform Into Reticulate Bodies.

Last Answer : a. Reticulate Bodies Are Infectious.

Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.

Description : Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.

Last Answer : c. Temperate Phages That Carry A Segment Of Host Dna.

During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome.b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Description : During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome. b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Last Answer : a. Phage DNA Integrates Into The Bacterial Chromosome.

The function of a viral capsid isA.protection against the viral genome from physical and enzymatic destruction B.providing binding sites that enable the virus to attach to specific receptor sites on the host cell C.serving as a vehicle of transmission from one host to another D.all of the above

Description : The function of a viral capsid is A.protection against the viral genome from physical and enzymatic destruction B.providing binding sites that enable the virus to attach to specific receptor sites on the host ... C.serving as a vehicle of transmission from one host to another D.all of the above

Last Answer : D.all of the above

Usually viruses are separated into several large groups based primarily onA.nature of the host B.nucleic acid characteristics C.capsid symmetry D.diameter of the viroin or nucleocapsid

Description : Usually viruses are separated into several large groups based primarily on A.nature of the host B.nucleic acid characteristics C.capsid symmetry D.diameter of the viroin or nucleocapsid

Last Answer : A.nature of the host

A major difference between EHEC and EPEC is A.EHEC secretes a Shiga-like toxin and EPEC does not B.EHEC possesses a type III secretion system and EPEC does not C.EPEC rearranges host cell actin and EHEC does not D.EPEC passes through the placenta to infect the fetus and EHEC does not

Description : A major difference between EHEC and EPEC is A.EHEC secretes a Shiga-like toxin and EPEC does not B.EHEC possesses a type III secretion system and EPEC does not C.EPEC rearranges host cell actin and EHEC does not D.EPEC passes through the placenta to infect the fetus and EHEC does not

Last Answer : A.EHEC secretes a Shiga-like toxin and EPEC does not

In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Description : In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Last Answer : D.All of the above

In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Description : In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Last Answer : .All of the above