__________ is an example for optical imaging technique.
a.
CLSM
b.
LCSM
c.
Both (a) and (b)
Correct Answer
d.
TEM
Step-by-Step AI Explanation
Verified Method
CLSM stands for Confocal Laser Scanning Microscopy, and LCSM stands for Laser Confocal Scanning Microscopy. Both are the same optical imaging technique. TEM (Transmission Electron Microscopy) is an electron-based technique, not optical.
Q2mcq1 mark
Match the following : (1)SEM (i)2 dimensional image (2)TEM (ii)Unstained living cell (3)Fluorescence microscope (iii)3 dimensional image (4)PCM (iv)Mycobacterium tuberculosis
SEM (Scanning Electron Microscopy) provides 3D images (1-iii). TEM provides 2D internal structural images (2-i). Fluorescence microscopy is used for observing organisms like Mycobacterium tuberculosis by detecting fluorescence (3-iv). Phase Contrast Microscopy (PCM) allows for the observation of unstained living cells (4-ii).
Q3mcq1 mark
Thermometers are disinfected by immersing in __________ for 10 to 20 minutes.
a.
Iodine
b.
Alcohol
Correct Answer
c.
Mercury
d.
Chloride
Step-by-Step AI Explanation
Verified Method
Alcohol (usually 70% ethyl alcohol or isopropyl alcohol) is commonly used to disinfect medical instruments like thermometers because it is effective against most vegetative bacteria and is non-corrosive to the glass and materials used in thermometers.
Q4mcq1 mark
Which among the following agent is used as a preservative in ophthalmic solution ?
a.
Quaternary ammonium salt
Correct Answer
b.
Phenol
c.
Ethylene Oxide
d.
Aldehydes
Step-by-Step AI Explanation
Verified Method
Quaternary ammonium salts, such as benzalkonium chloride, are frequently used as preservatives in ophthalmic solutions due to their effectiveness against a wide range of bacteria at low concentrations and their relative safety for ocular tissues.
Q5mcq1 mark
Which one of the following is correct ?
a.
Apoenzyme + Holoenzyme = Coenzyme
b.
Apoenzyme + Cofactor = Holoenzyme
Correct Answer
c.
Holoenzyme + Coenzyme = Apoenzyme
d.
Coenzyme + Cofactor = Holoenzyme
Step-by-Step AI Explanation
Verified Method
A holoenzyme is the complete, catalytically active form of an enzyme. It consists of the protein component (apoenzyme) and a non-protein component known as a cofactor. Therefore, Apoenzyme + Cofactor = Holoenzyme.
Q6mcq1 mark
Milk contains about ___________ of casein protein.
a.
50 - 100%
b.
90 - 95%
c.
60 - 65%
d.
80 - 85%
Correct Answer
Step-by-Step AI Explanation
Verified Method
Casein is the primary protein found in mammalian milk. In bovine milk, casein constitutes approximately 80% to 85% of the total protein content, with the remainder being whey proteins.
Q7mcq1 mark
__________ method is used for preservation of sporulating micro-organisms.
a.
Drying
b.
Desiccation
c.
Liquid Nitrogen
Correct Answer
d.
Agar slopes
Step-by-Step AI Explanation
Verified Method
Liquid nitrogen (cryopreservation) is the most effective method for preserving sporulating microorganisms and other sensitive cultures over long periods by arresting metabolic processes completely.
Q8mcq1 mark
The bacteria which causes cerebrospinal fever __________.
a.
Salmonella typhi
b.
Neisseria meningitides
Correct Answer
c.
Corynebacterium diphtheriae
d.
Vibrio cholerae
Step-by-Step AI Explanation
Verified Method
Neisseria meningitidis is the causative agent of meningococcal meningitis, which is clinically referred to as cerebrospinal fever. Salmonella typhi causes typhoid, Corynebacterium diphtheriae causes diphtheria, and Vibrio cholerae causes cholera.
Q9mcq1 mark
The father of Medical Mycology is :
a.
Joseph Lister
b.
Louis Pasteur
c.
Robert Koch
d.
Raymond Jacques Sabouraud
Correct Answer
Step-by-Step AI Explanation
Verified Method
Raymond Jacques Sabouraud is known as the father of Medical Mycology due to his extensive studies on dermatophytes and the development of the culture medium (Sabouraud agar) used to isolate fungi. Joseph Lister is the father of Antiseptic Surgery, Louis Pasteur is the father of Microbiology, and Robert Koch is the father of Bacteriology.
Q10mcq1 mark
Diaper rash is caused by the Fungi __________.
a.
Penicillium notatum
b.
Cryptococcus neoformans
c.
Candida albicans
Correct Answer
d.
Histoplasma capsulatum
Step-by-Step AI Explanation
Verified Method
Candida albicans is a yeast that commonly causes diaper rash (candidiasis) in infants due to its affinity for warm, moist areas of the skin. Penicillium notatum produces penicillin, Cryptococcus neoformans causes meningitis, and Histoplasma capsulatum causes histoplasmosis.
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Assertion (A) :Cytomegalo virus is classified as Beta Herpes virus. Reason (R) :Beta Herpes virus have short replicative cycle and variable host range.
a.
Assertion (A) is true and Reason (R) explains assertion (A)
b.
Assertion (A) is true, Reason (R) is false
c.
Both Assertion (A) and Reason (R) are false
d.
Assertion (A) is false, Reason (R) is true
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