Microbiology MCQs/BCQs

1. The media used for culturing salmonella is
a. VL-broth
b. Sabouruad agar
c. Slanetz bartley
d. Meat broth
e. Selenite Broth

2. Structural and functional as well as basic unit of life which was discovered by Robert hook.
a. Cell
b. Tissue
c. Organ
d. System
e. Human
3. Area of the cytoplasm that contains the single bacterial DNA molecule
a. Plasma
b. Nucleoid region
c. Cytoplasm
d. Ribosomes
e. Vacuole

4. Cells have “little organs” in it are collectively known as
a. Cell parts
b. Inter cell
c. Cell organelles
d. Cytoplasm
e. Golgi bodies

5. It is called the power house of cell.
a. Golgi bodies
b. Plasma membrane
c. Mitochondria
d. Cell membrane
e. Food vacuole

6. The bodies ability to fight against pathogens is known as
a. Microbiology
b. Histology
c. Pathology
d. Immunity
e. Biology

7. A patient skin-tested with purified protein derivative (PPD) to determine previous exposure to Mycobacterium tuberculosis develops induration at the skin test site 48 hours later. Histologically, the reaction site would MOST probably show:
a. Neutrophils
b. Helper T cells and macrophages
c. B cells
d. Eosinophils
e. A cells

8. It is highly complex jelly like material in which other parts are embedded.
a. Apoptosis
b. Cytoplasm
c. Ribosomes
d. Endoplasmic reticulum
e. Nucleus

9. Part of microscope that is hollow cylindrical tube & support the ocular lens is named as
a. Objective
b. Lens
c. Eye piece
d. Body tube
e. Nose piece

10. It acts as a barrier to invasion.
a. Skin
b. Bones
c. Organs
d. Cell
e. Brain

11. According to mitosis cell division has
a. 10 phases
b. 4 phases
c. 2 phases
d. 5 phases
e. 6 phases

12. It is a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections.
a. Antibiotic
b. Antigen
c. Protein
d. Virus
e. Bacteria

13. A child stung by a bee experiences respiratory distress within minutes and lapses into unconsciousness. This reaction is probably mediated by:
a. IgM antibody
b. Sensitized T cells
c. IgE antibody
d. IgF antibody
e. Sensitized T cells

14. organism made up of one of single cell are known as
a. multi cellular
b. muti nucleoid
c. nucleus
d. unicellular
e. animal

15. It is a milky body fluid that contains a type of white blood cells.
a. Body
b. Cell
c. Lymph
d. Plasma
e. Membrane

16. An injection of a weakened form of the actual antigen that causes the disease is called
a. Injection
b. Syringe
c. Vaccine
d. Inmmune system
e. Lymphocytes

17. A patient with a central nervous system disorder is maintained on the drug methyldopa. Hemolytic anemia develops, which resolves shortly after the drug is withdrawn. This is MOST probably an example of:
a. Cell-mediated hypersensitivity
b. Immune-complex hypersensitivity
c. Atopic hypersensitivity
d. Cytotoxic hypersensitivity
e. Non hypersensitivity

18. Are chemical substance as protein, carbohydrates, lipids (fats) or nutic acid which stimulates specific immune response.
a. Antibiotic
b. Antigen
c. Protein
d. Virus
e. Bacteria

19. The 3rd phase of mitosis (cell division) is known as
a. Anaphase
b. Metaphase
c. Telophase
d. Prophase
e. Cytokinesis

20. A small dense(thick) body in nucleus that contain ribo nucleic acid is known as
a. Metacarpals
b. Meta tarsals
c. Nucleoli
d. Nucleus
e. Ribosomes

21. An immunoglobulin is a
a. Carbohydrate
b. Glycoprotein
c. Protein
d. Minerals
e. Amino acid

22. It is useful to stimulate antibody production
a. An adjuvant
b. A hapten
c. A protein
d. Red blood cells
e. Purified antigen

23. The resistance power of body against infectious agents like bacteria, virus etc.
a. Microbiology
b. Histology
c. Pathology
d. Immunity
e. Biology

24. In this type of cell division four haploid gametes are produced.
a. Mitosis
b. Meiosis
c. Decomposition
d. Photosynthesis
e. Sterilization

25. A part of microscope that is circular shutter which regulates the size of opening through which light processes in the condenser.
a. Condenser
b. Mirror
c. Arm
d. Diaphragm
e. Inclinations joint

26. A process of A-sexual reproduction or simple method of cell division that occurs in unicellular organisms.
a. Sterilization
b. Fertilization
c. Meiosis
d. Mitosis
e. Sanitization

27. The first person to identify microbes as causing disease was
a. Louis Pasteur
b. Robert Koch
c. Robert hook
d. Ivan lewin hook
e. Edward jenner
28. A minute animal or vegetable which can’t be seen by naked eye but just can be seen by micro-scope.
a. Macro organism
b. Micro organism
c. Human being
d. Ant
e. Elephant
29. A disease in which minute organisms, invisible to the naked eye, invade and multiply within the body.
a. Infectious disease
b. Healthy disease
c. Disease
d. Infection
e. Microscopic disease

30. Those diseases that are found normally in a population are named as
a. Epidemic
b. Endemic
c. Pendemic
d. Epizootic
e. Incidence


31. Respiratory acidosis and alkalosis are due to a problem with the
a. Heart
b. Lungs
c. Hands
d. Foot
e. Brain

32. Metabolic acidosis and alkalosis are due to a problem with the
a. Kidney
b. Pancreas
c. Gall bladder
d. Urinary bladder
e. Bones

33. The movement of molecules across the cell membrane and does not requires energy is known as
a. Passive transport
b. Active transport
c. Cellulose
d. Movement
e. Motion

34. A term for the language deficit accompanying cerebral stroke is
a. Agraphia
b. Anosognosia
c. Dysphagia
d. Aphasia
e. Euphoria

35. The inability to carry out a motor task on command given adequate strength, sensation, coordination and comprehension is called:
a. Aphasia
b. Apraxia
c. Alexia
d. Aprosodia
e. Abulia

36. A 64 year-old right handed male presents with right upper limb plegia, right lower limb paresis, a hemi sensory deficit, a decreased ability to comprehend verbal or written commands and poor language output. His lesion is most likely in the:
a. Basal ganglia
b. Middle cerebral artery distribution
c. Posterior cerebral artery distribution
d. Brain stem
e. Anterior cerebral artery distribution

37. A stroke affecting the back part of a brain could affect
a. Lungs
b. Heart
c. Sight
d. Taste
e. Smell

38. Hemorrhagic Stroke is associated with
a. Hypertension
b. Dialysis
c. Resting
d. Fatigue
e. Hepatitis

39. The carrier-mediated transport of large molecules through the cell membrane using transport proteins embedded within the cell membrane is known as
a. Passive transport
b. Active transport
c. Facilitated diffusion
d. Movement
e. Motion
40. A semi permeable membrane separating the blood from the cerebrospinal fluid, and constituting a barrier to the passage of cells, particles, and large molecules.
a. Permeable membrane
b. Cell membrane
c. Cell wall
d. Blood brain barrier
e. Kidney blood barrier


41. “The movement of solute molecules and water across a membrane by normal cardiovascular pressure” refers to
a. Permeability
b. Semi permeability
c. Filtration
d. Vibration
e. Movement

42. The sodium-potassium pump carries out a form of
a. Active transport
b. Passive transport
c. Sterilization
d. Filtration
e. Disinfection

43. The diffusion of a solute across a selectively permeable membrane. In this case the solute molecules always move from the stronger concentration (hypertonic) to the weaker (hypotonic).
a. Diffusion
b. Osmosis
c. Dialysis
d. Filtration
e. De colorization

44. The most important carbohydrate is
a. Fructose
b. Lactose
c. Glucose (monosaccharide)
d. Sucrose
e. Glycoprotein

45. Cholesterol is a type of
a. Protein
b. Carbohydrate
c. Amino acids
d. Lipids
e. Fats
46. Anti lipolytic hormone is
a. Insulin
b. Epinephrine
c. Nor epinephrine
d. Thyroid
e. Serotonin

47. The maintenance of steady levels of glucose in the body is known as
a. Lipid regulation
b. Fat regulation
c. Serotonin regulation
d. Gluco regulation
e. Thyroid regulation

48. The entire spectrum of chemical reactions, occurring in the living system is termed as
a. Metabolism
b. Anabolism
c. Catabolism
d. Ion regulation
e. Insulin regulation

49. Synthesis of glucose from non carbohydrate compounds is known as
a. Glycoprotein
b. Glycolipids
c. Glucose
d. Lactogenesis
e. Glycogenesis

50. Non essential amino acids are named as
a. Dispensable amino acids
b. Non dispensable amino acids
c. Regulatory amino acids
d. Retained amino acids
e. Fatty amino acids

Note: attempt any five questions. All questions carry equal marks
Qno1. Write a short note on blood brain barrier?
Qno2. Discuss briefly active and passive transport in general with examples and explain sodium potassium pump?
Qno3. Differentiate between trauma and cellular injury?
Qno4. Define microbiology and briefly discuss its importance in nursing?
Qno5. Define immunity and explain its types with at least two examples for each type?
Qno6 write short note any one of the following
a. Mitosis
b. meiosis
Qno7. Differentiate between unicellular and multi cellular organisms with examples and differentiate between eukaryotes and prokaryotes with examples?

Answer key
01 E
02 A
03 B
04 C
05 C
06 D
07 B
08 B
09 D
10 A
11 B
12 A
13 E
14 D
15 C
16 C
17 D
18 B
19 A
20 C
21 B
22 A
23 D
24 B
25 D


26 D
27 B
28 B
29 A
30 B
31 B
32 A
33 A
34 D
35 B
36 B
37 C
38 A
39 C
40 D
41 C
42 A
43 C
44 C
45 D
46 A
47 D
48 A
49 E
50 A