Microbiology MCQs Mock Test - Chapter 44

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Explore Chapter 44 with our Microbiology MCQs Mock Test! Each question is paired with detailed explanations to help you deepen your understanding of key concepts. This comprehensive collection of multiple-choice questions, complete with thorough clarifications, is designed to enhance your knowledge and boost your confidence in the fascinating field of microbiology.

Return to Chapter 44 for Explanations

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Return to Chapter 44 for Explanations

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Microbiology Department

Microbiology MCQs Chapter 44

Chapter 44 with our Microbiology MCQs and explanations! Test your knowledge and understanding of key concepts with our complete set of multiple choice questions with detailed explanations for each answer. Increase your confidence and understanding of the fascinating world of microorganisms!

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1 / 50

Category: Microbiology

Secretory piece of IgA is synthesized in______________?

Lymph nodes

T-cells

Mucosal epithelium

B-cells

2 / 50

Category: Microbiology

Exaltation is________________?

Decreased virulence

No change

None

Increased Virulence

3 / 50

Category: Microbiology

Best medium for urine culture ?

Chocolate Agar

Nutrient Agar

Blood Agar

CLED Agar

4 / 50

Category: Microbiology

Delayed tuberculin test response is due to_______________?

Histiocytes

T lymphocytes

B lymphocytes

Monocytes

5 / 50

Category: Microbiology

Which of the following antibacterial substance is present in eggs and saliva ?

Secretozyme

Lysozyme

Albumin

Isozyme

6 / 50

Category: Microbiology

Which of the following is not a feature of anaphylaxis ?

Delayed reaction

Immediate reaction

passive transfer by serum

None of the above

7 / 50

Category: Microbiology

Function of T-lymphocyte is/are________________?

Rosette formation

All of the above

Lymphokine production

Production of interferon

8 / 50

Category: Microbiology

Sporulation occurs in__________________?

Stationary phase

Decline phase

Lag phase

Log phase

9 / 50

Category: Microbiology

The optimal time and temperature required for sterilization in an autoclave is___________________?

121°C 15 mts. x 15 lbs pr.

121°F x 15 sec. x 15 lbs pr.

140°C x 2 hrs. x 10 lbs pr.

121°F x 15 mts. x 15 lbs pr.

10 / 50

Category: Microbiology

The immediate type of hypersensitivity in which histamine doses not play a major role is______________?

Urticaria

Asthma

Arthus reaction

Anaphylaxis

11 / 50

Category: Microbiology

Sporulation occurs in__________________?

Decline phase

Stationary phase

Log phase

Lag phase

12 / 50

Category: Microbiology

Glasswares are sterilised by______________?

Autoclaving

Incineration

Formaldehyde

Hot air oven

13 / 50

Category: Microbiology

One of the following staining methods is an example of negative staining_______________?

Zheil-Neilson’s staining

Gram’s staining

India ink preparation

Fontana’s staining

14 / 50

Category: Microbiology

Secretory Ig is_______________?

IgD

IgE

IgM

IgA

15 / 50

Category: Microbiology

First released immunoglobulin after primary immunization_______________?

IgD

IgG

IgE

IgM

16 / 50

Category: Microbiology

An example of naturally acquired passive immunity is__________________?

Immune blood transfusion

Hepatitis vaccination

Gamma globulin injection

Placental transfer of antibodies

17 / 50

Category: Microbiology

Bacteria with tuft of flagella at one end are called_______________?

Lophotrichate

Peritrichate

Bipolar

Monotrichate

18 / 50

Category: Microbiology

Plasmid__________________?

Involved in conjugation Imparts capsule formation

Imparts pili formation

Involved in multidrug resistance transfer

Both Involved in multidrug resistance transfer & Involved in conjugation

19 / 50

Category: Microbiology

Graft versus host reaction is caused by_________________?

T-lymphocytes

B-Lymphocytes

Leukocytes

Monocytes

20 / 50

Category: Microbiology

B.C.G untrue is_____________?

Orally administered

T.B vaccine

All of the above

live vaccine

21 / 50

Category: Microbiology

Noguchi’s medium is used for________________?

Borrelia

Bordetella

None of the above

Brucella

22 / 50

Category: Microbiology

Sterilisation control for moist heat is “or” The efficacy of the moist heat sterilization technique commonly used to sterlilize laboratory ware and culture media is tested by using_______________?

using Bacillus stearo thermo philus

Using chemical indicator

Using non-pathogenic strain of clostridium tetani

Using methylene blue

23 / 50

Category: Microbiology

Phagocytosis enhanced by coating the surface of antigen is called______________?

De coding

Opsonisation

CFT

Chemotaxis

24 / 50

Category: Microbiology

The exact part of the antigen that reacts with the immune system is called as_____________?

Clone

Paratope

Idiotope

Epitope

25 / 50

Category: Microbiology

Disinfection frees the surface from______________?

Vegetative forms

Spore forms

None of the above

Both of the above

26 / 50

Category: Microbiology

The serum concentration of which of the following human IgG subclass is maximum ?

IgG2

IgG1

IgG4

IgG3

27 / 50

Category: Microbiology

Serum sickness syndrome is an example of________________?

Systemic arthus reaction

Angioneurotic edema

Cell-mediated immunity

Anaphylactic

28 / 50

Category: Microbiology

Synthesis of antibodies in plasma cells occurs in_________________?

Nucleus

Golgi body

Endoplasmic reticulum

Mitochondria

29 / 50

Category: Microbiology

compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?

Causes instruments to rust

Time-consuming

Causes sharp instruments to dull

Less effective

30 / 50

Category: Microbiology

A darkfield microscope would be useful in examining blood for_______________?

Streptococcus

Mycobacterium

Treponema

Actinomyces

31 / 50

Category: Microbiology

Endotoxins differ from exotoxins in that endotoxins______________?

are highly antigenic

activate complement by the alternate pathway

are proteins

are heat labile

32 / 50

Category: Microbiology

Sterilisation is______________?

All pathogenic and non-pathogenic microorganisms killed

Pathogens killed but spores are not affected

Only pathogenic micro-organisms killed

Non-pathogenic killed

33 / 50

Category: Microbiology

Serum sickness syndrome is an example of________________?

Macrophages

Neutrophils

Plasma cells

T-cells

34 / 50

Category: Microbiology

Multiple drug resistance of bacteria depends on which of the following_______________?

Fertility factor (F+)

Colicigenic factor (Col)

Resistance transfer factor (RTF)

All of the above

35 / 50

Category: Microbiology

Bacterial spores are destroyed by_______________?

Disinfection by hypochlorite solution

Pasteurisation

Boiling at 100°C

Autoclave

36 / 50

Category: Microbiology

The binding site for complement on the IgG molecule is in the________________?

CH1 domian

CH2 domian

CL domian

VL domian

37 / 50

Category: Microbiology

The major antiseptic value of soap lies in its ability to_____________?

Inhibit microbial growth

Kill mircobes

Dehydrate microbial cells

Remove microbes

38 / 50

Category: Microbiology

Haptane is_______________?

High molecular protein

None of the above

Carrier required for specific antibody production

Same as epitopes

39 / 50

Category: Microbiology

Which of the following organisms are arranged in cubical packets of eight cocci________________?

Staphylococcus

Sarcina

Aerococcus

Micrococcus

40 / 50

Category: Microbiology

Operation theatres are sterilized by_____________?

Carbolic acid spraying

Formaldehyde fumigation

Washing with soap and water

ETO gas

41 / 50

Category: Microbiology

The Ig found in exocrine secretions is_____________?

IgA

IgM

IgD

IgG

42 / 50

Category: Microbiology

Immunoglobulin consists of________________?

2 light, 2 heavy chains

1 heavy, 2 light chains

3 light, 1 heavy chain

1 light, 1 heavy chain

43 / 50

Category: Microbiology

Detergents used to disinfect dental instruments in the office kill bacteria by interfering with functional of the cell______________?

Capsule

wall

membrane

nucleus

44 / 50

Category: Microbiology

Which of the following is an enrichment medium________________?

Blood agar

Nutrient Broth

Mac Conkey agar

Selenite F Broth

45 / 50

Category: Microbiology

Immunoglobin, Which is produced first by the fetus in response to infection_______________?

IgA

IgG

IgM

IgD

46 / 50

Category: Microbiology

Immunoglobulin implicated in atopy and anaphylaxis is_______________?

IgA

IgG

IgE

IgM

47 / 50

Category: Microbiology

Rideal Walker test is used to determine the efficiency of the_____________?

Antibiotics

Moist heat sterilisation

Dry heat sterilization

Disinfectant

48 / 50

Category: Microbiology

Most antibodies are produced in the________________?

Brain and the meninges

Thymus and the appendix

Heart and the liver

Spleen and the lymph nodes

49 / 50

Category: Microbiology

Hospital dressing is best disposed by_____________?

Incineration

Burying

Autoclaving

Dumping

50 / 50

Category: Microbiology

Smith noguchi’s media is used for_______________?

Klebsiella

Salmonella

Spirochetes

Bacillus

Your score is

Return to Chapter 44 for Explanations

The questions are crafted to assess the essential technical skills and knowledge necessary in the laboratory profession. This includes interpreting lab test results, performing various laboratory procedures, and maintaining lab equipment efficiently.

To prepare effectively for these multiple-choice questions (MCQs), candidates need a strong grasp of fundamental laboratory science concepts and principles. Familiarity with common laboratory equipment, procedures, and safety protocols is crucial.

Candidates can benefit significantly from studying specific laboratory science textbooks or taking online courses that cover the relevant MCQ material. Additionally, practicing with sample MCQs and reviewing the answers can help candidates pinpoint areas where they need to enhance their knowledge or skills.

Overall, the MCQs for lab technologists are challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in laboratory science.

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