NEET MDS Shorts
47501
MicrobiologyThe chemical nature of bacterial exotoxins is, a lipopolysaccharide complex
51861
MicrobiologyLactobacillus is an acidogenic genus found in deep dental caries, that often increases significantly in the saliva during periods of caries activity
80979
MicrobiologyMost bacterial endotoxins are composed of lipoprotein-polysaccharide complexes
70112
MicrobiologyColonies of E. coli serotype O157:H7 appear on Mac Conkey Sorbitol Agar as colourless colonies non-sorbitol fermenter. Others E. coli, sorbitol fermenters, give red colonies and gram-negative non-sorbitol fermenters appear translucent.
38050
Microbiology
The main tool for the detection of "cases" of tuberculosis is 1.
Sputum examination. Sputum examination: This is the primary method for
diagnosing active pulmonary tuberculosis. Sputum samples are collected and
examined for the presence of Mycobacterium tuberculosis through
microscopy (e.g., acid-fast bacilli staining) and culture methods. It is
considered the gold standard for confirming active TB cases. Mantoux test: Also known as the tuberculin skin test,
this test is used to determine if a person has been exposed to the
tuberculosis bacteria. However, it does not diagnose active TB; rather, it
indicates whether a person has been infected with the bacteria at some
point. Chest X-ray: While chest X-rays are important for
identifying lung abnormalities associated with tuberculosis and can support
the diagnosis, they are not definitive for detecting the bacteria itself.
They are often used in conjunction with sputum examination.Explanation of Each Option:
65193
MicrobiologyThe minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is 20° C to 45°C
69872
MicrobiologyDry heat sterilization of paper points without incineration is accomplished at 160°C for 2hours
16671
MicrobiologyTwo important factors for initiation of caries by oral streptococci are production of glucosyl transferase and synthesis of insoluble dextran
98570
MicrobiologyThe most efficient method of sterilization in dental practice is moist heat at 121°C for 20 min
46894
Microbiology