EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
5th Edition
ISBN: 9781319360689
Author: PHELAN
Publisher: VST
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Chapter 27, Problem 2MC
Summary Introduction
Introduction:
The complement system consists of a number of proteins that aid in the functions of both specific and non-specific immune cells.
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Students have asked these similar questions
Immunoglobins help eliminate the pathogen through the process of:
A. Release of hydrolytic enzymes on the pathogen
B. Agglutination and precipitation
C. Direct phagocytosis
D. Activating platelets
Which of the following does not describe the outcome of complement activation?
a. chemotaxis
b. opsonization
c. vasoconstriction
d. proteolysis
e. membrane permeabilization.
Which of the following leads to swelling seen in an inflammation?
a. Vasodilation
b. Complement activation
c. Phagocytosis by macrophages
d. Increased capillary permeability
Chapter 27 Solutions
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- 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_forwardWhich of the following is the end product of the complement system?a. properdin b. cascade reaction c. membrane attack complex d. complement factor C9arrow_forwardare cytolytic proteins that binds to target cell's plasma membrane to form pores. a. Chemokines b. Perforins c. Cytotoxicity d. Interferonsarrow_forward
- Choose the combination of answers that most accurately completes the statement. Which of the following is the end product of the complement system? a. properdin b. cascade reaction c. membrane attack complex d. complement factor C9arrow_forwardBoth antibodies and particular complement proteins, such as c3b, are capable of aiding phagocytes in attaching to bacteria. What term best describes these? O 1) opsonins O 2) haptens O 3) pyogens O 4) perforinsarrow_forwardIn what process is tumor necrosis factor (TNF) not involved?a. chemotaxis of phagocytesb. fever c. the inflammatory responsed. the classic complement pathwayarrow_forward
- Part of the complement system of defense is opsonization. This process A.) creates an acidic environment that prevents pathogen attachment B.) causes holes to form in the pathogen's cell walls. C.) coats the pathogen exterior so that it is recognized by the host's phagocytes. D.) causes the pathogen to become trapped in mucus.arrow_forwardWhich of the following is not a consequence of activation of the complement system? Select one: a. Lysis of bacteria and other foreign cells b. Repair of damaged tissue c. Increased phagocytosis by phagocytic cells (opsonization) d. Attraction and activation of leukocytesarrow_forwardCD8 cells attack virally infected cells, usually killing them using what method? 1) Complement activation O2) 2) Apoptosis O 3) Phagocytosis O 4) Senescencearrow_forward
- Which components are considered a barrier to pathogen entry? all that apply Select one or more: a. PRRs b. plasma cells c. mucus d. lymph nodes e. lysozymearrow_forwardSome bacterial cells avoid the killing effects of activated complement proteins. How might they do this?arrow_forwardWhat is a cytokine? A ) a. a chemical mediator (stimulus) of inflammation that is released by cells in response to tissue or cell damage O b. an antimicrobial substance made by neutrophils O c. a repair stimulator produced by Eosinophils during an allergic reaction O d. cellular (cyto-) substance that mediates noisy arguments between macrophages and lymphocytes And that I put A Cardiac disease is considered a(n) O a. acute, 3 O b. acute, 10 1 c. chronic, 3 O d. chronic, 10 Oe, acutely chronic, 114 And that I put Chronic 3 Are the 3 questions correct?arrow_forward
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