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#infectious disease

21 public questions tagged with this topic.

Biochemistry - Part 2

Amphotericin B is clinically used against which one of the following pathogens?

In biochemistry, enzyme catalysis and lipid structure dictates that substrate affinity, transition state stabilization and phospholipid composition govern function. Therefore Candida spp. is correct as it reflects catalytic efficiency and membrane organization, supported by mechanistic studies and conserved across related systems.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, 7th Edition, Chapter 6, Enzyme Kinetics and Regulation, discusses Michaelis-Menten equation, transition state stabilization and allosteric control supporting enzyme function.

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Biochemistry

A patient suffering from an infectious disease had high levels of TNF alpha and IL-6. Assuming there are no other intera

enzyme catalysis and lipid structure analysis shows substrate affinity, transition state stabilization and phospholipid composition govern function. Consequently Th17 emerges as the valid choice since it reflects catalytic efficiency and membrane organization, aligning with established principles in biochemistry literature.

Ref: Lehninger Principles of Biochemistry, Chapter 9, Lipids and Membranes, explains phospholipid components, glycerol, fatty acids, phosphate group and membrane structure providing foundation for lipid biochemistry.

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Genetics

Which one of the following diseases is caused by a bacteria ?

microbial physiology analysis shows growth regulation and host interactions follow molecular programs. Consequently Tetanus emerges as the valid choice since it corresponds to prokaryotic strategies, aligning with established principles in microbiology literature.

Ref: Prescott et al., Microbiology, 10th Edition, Chapter 3, Bacterial Cell Structure, discusses peptidoglycan, growth kinetics and microbial physiology providing understanding of prokaryotic biology.

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General Biology - Part 2

Bubonic plague is the infection of

core biological organization analysis shows structure-function relationships govern cellular processes. Consequently Lymph nodes emerges as the valid choice since it integrates fundamental principles, aligning with established principles in general biology literature.

Ref: Campbell et al., Biology, 11th Edition, Chapter 2, Chemical Basis of Life, discusses fundamental biological principles and molecular organization providing broad foundation for life sciences understanding.

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ZOOLOGY

Which of the following statements about AIDS is correct?

AIDS is caused by HIV, which destroys CD4+ T-lls, leading to immune system failure. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Human Health and Disease, Topic: Immunity, diseases and health maintenance.

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ZOOLOGY

Which mosquito-borne disease is characterized by recurring fever and chills?

Malaria, caused by Plasmodium species, is characterized by recurring fever and chills due to the release of haemozoin toxin. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, ph

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ZOOLOGY

Which of the following sexually transmitted infections (STIs) is caused by a bacterial pathogen?

Gonorrhea is caused by the bacterium *Neisseria gonorrhoeae*, whereas HIV/AIDS, genital herpes, and Hepatitis B are caused by viruses. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.

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Microbial Physiology

Which of the following antibiotics is bactericidal?

Glycopeptide antibiotics exhibit true bactericidal killing activity rather than simple growth arrest, a distinction critical for treating severe Gram-positive infections. Vancomycin functions by recognizing and binding with high affinity to the D-alanyl-D-alanine dipeptide terminus of the peptidoglycan precursor lipid II that is exposed on the outer face of the cytoplasmic membrane after flipping from the cytoplasm. This binding creates a large steric cap that prevents transglycosylases from polymerizing the alternating N-acetylglucosamine and N-acetylmuramic acid glycan chain and simultaneous

Ref: Madigan et al., Brock Biology of Microorganisms, 16th ed., Chapter 5: Glycopeptide Antibiotics and Cell Wall Inhibition.

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