7 public questions tagged with this topic.
Macrophages are phagocytic cells that act as the first line of defense in innate immunity by engulfing pathogens.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Immunity - Innate Immunity - Barriers and Interferons
Neutrophils do not produce antibodies; instead, they engulf and destroy pathogens through phagocytosis.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Bacterial - Typhoid Pneumonia
Neutrophils are the first line of defense in immunity and act by engulfing and destroying pathogens.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood Groups - ABO Rh System and Coagulation
Neutrophils and monocytes are phagocytic WBCs that engulf and digest foreign particles and pathogens.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
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)
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)
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)
