This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Pathology, Subject name: Pathology
[{'content': 'Which of the following is a part of secondary granules in neutrophils? \nSelect and explain. \nA. Cathepsin G, B. Lactoferrin, C. Defensin, D. Myeloperoxidase', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., LactoferrinLvsosomal enzymes:o These are present in the lysosomes of neutrophils and monocytes. Lysosomes contain two types of granules; Primary (azurophilic) and Secondary (specific) granules.Lvsosomal granulesPrimary (azurophilic) granulesSecondary (specific) granuleso Require high level of agonist to be released extracellularlyo Potentially more destructiveo Secrete:y Myeloperoxidase (MPO)y Acid hydrolasey Elastasey Defensiny Phospholipase A2y Non-specific collagenaseo Secreted at lower concentration of agonistso Secreted extracellularly more readilyo Secrete:y Lysozymey Lactoferriny Alkaline phosphatasey Type IV collagenasey Phospholipase A2", 'role': 'assistant'}]