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#neutrophils

10 public questions tagged with this topic.

Molecular Biology and Cell Biology

Which one of the following cell types is the most characteristic component of the early stages of acute inflammatory rea

This outcome reflects cellular compartmentalization and cell cycle, where SNARE-mediated trafficking, Hayflick limit, P53 and cyclin regulation control proliferation. Option B captures this correctly because it aligns with membrane trafficking and cell cycle control, consistent with textbook descriptions and experimental observations in cell biology.

Ref: Alberts et al., Molecular Biology of the Cell, 6th Edition, Chapter 10, Membrane Structure and Transport, discusses SNARE proteins, vesicle trafficking, ER, Golgi, endosome membranes and selective transport providing compartmentalization foundation.

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Cell Biology

Which one of the following cell types is the most characteristic component of the early stages of acute inflammatory rea

This outcome reflects cellular compartmentalization and cell cycle, where SNARE-mediated trafficking, Hayflick limit, P53 and cyclin regulation control proliferation. Option B captures this correctly because it aligns with membrane trafficking and cell cycle control, consistent with textbook descriptions and experimental observations in cell biology.

Ref: Alberts et al., Molecular Biology of the Cell, 6th Edition, Chapter 10, Membrane Structure and Transport, discusses SNARE proteins, vesicle trafficking, ER, Golgi, endosome membranes and selective transport providing compartmentalization foundation.

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Biochemistry and Aptitude and Reasoning

Neutrophils are attracted to an infected area by

In biochemistry, enzyme catalysis and lipid structure dictates that substrate affinity, transition state stabilization and phospholipid composition govern function. Therefore phagocytosis of IgE-coated bacteria 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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Immunology

Major phagocytic cells of innate immunity are

Macrophages and neutrophils, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Immunology

Major innate immune cells include

Macrophages and neutrophils, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Immunology

α-defensins are mainly produced by

Antimicrobial peptides such as defensins and cathelicidins are cationic molecules that disrupt microbial membranes by forming pores or micelles. α-Defensins are stored in neutrophil granules and Paneth cells, while β-defensins are produced by epithelial cells. Their broad-spectrum activity constitutes an important chemical barrier of innate immunity at mucosal and epithelial surfaces.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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