Concept explainers
Introduction:
Insect immunity is the immune response produced by the insect against foreign antigens. It involves various modes of reactions towards an antigen such as the production of antibacterial digestive enzymes, phagocytosis by hemocytes and the production of antimicrobial peptides.
Answer to Problem 1TYU
Correct answer:
The activation of the natural killer cells is not a part of the insect immunity. Therefore, option (B) is correct.
Explanation of Solution
Reason for the correct statement:
The natural killer cells are not produced in the in case of the insect immunity.
Option (B) is given as “activation of natural killer cells”.
As “the activation of the natural killer cells is not a part of the insect immunity” it is the right answer.
Hence, option (B) is correct.
Reason for the incorrect statement:
Option (A) is given as “antibacterial digestive enzyme”.
Antibacterial digestive enzymes are produced by the insects. Since it is a part of the insect immunity, so, it is a wrong answer.
Option (C) is given as “phagocytosis by hemocytes”.
Phagocytosis is done by the hemocytes in the insect immunity. Since it is a part of the insect immunity, so, it is a wrong answer.
Option (D) is given as “production of antimicrobial peptides”.
Antimicrobial peptides are produced by the insect immunity. Since it is a part of the insect immunity, so, it is a wrong answer.
Hence, options (A), (C), and (D) are incorrect.
The activation of the natural killer cells is not a part of the insect immunity. Immunity of insects involves various modes of reactions towards an antigen such as the production of antibacterial digestive enzymes, phagocytosis by hemocytes and the production of antimicrobial peptides.
Want to see more full solutions like this?
Chapter 35 Solutions
Campbell Biology in Focus (2nd Edition)
- what cell provides cell mediated immunity a. monocytes b. b lymphocte c. cytotoxic t cells d. neurophilsarrow_forwardWhich of the following plays a role in the Arthus reaction?a. IgE antibodies. b. complement c. cell-associated antigen d. cytotoxic T cellsarrow_forwardBacterial capsules a. kill phagocytes b. prevent engulfment by phagocytes c. prevent the activation of complementarrow_forward
- A patient with a history of asthma and eczema has a higher than normal concentration of IgE in their blood. This predisposes them to what? A. Catalase positive organism infections B. Type I Hypersensitivies C. T cell misactivation D. Lupusarrow_forwardMicrobial products trigger macrophage activation. Match the receptor with the product that it binds. ✓ TLR-4 ✓ TLR-3 ✓ TLR-9 TLR-5 A. Unmethylated DNA B. Double-stranded RNA C. LPS D. Flagellaarrow_forwardAn example of an inflammatory mediator that stimulates vasodilationisa. histamine b. collagen c. complement C5a d. interferonarrow_forward
- Which of these statements about complement proteins C3a and C5a is false?a. They are released during the complement fixation process.b. They stimulate chemotaxis of phagocytic cells.c. They promote the activity of phagocytic cells.d.They produce pores in the victim plasma membrane.arrow_forwardExplain Which Enhanced phagocytosis of a cell by the binding of a specific protein is called ________. a. endocytosis b. opsonization c. anaphylaxis d. complement activationarrow_forwardWhich of these pairs are mismatched? a. cytosol: intracellular pathogen b. surface of epithelium: extracellular pathogen c. nucleus: intracellular pathogen d. lymph: intracellular pathogenarrow_forward
- A(n) _____ is an inactive form of an enzyme that frequently participates in a cascade of enzymatic reactions during complement activation. a. regulator of complement activation b. convertase c. complement control protein module d. zymogen e. opsonin.arrow_forwardIdentify which of the following immune responses is pivotal to the killing and elimination of helminths. a. killing by cytotoxic T cells in the lamina propria b. TH1-induced inflammation c. TH2-associated cytokines d. phagocytosis by intestinal macrophages e. systemic immune responses f. B-cell secretion of IgG.arrow_forwardB cells are responsible for which conditions?a. asthma b. anaphylaxis c. tuberculin reactions d. both a and barrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education