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MLT 243 Immunology, Unit 1 (251-286) Exam with precise answers, Exams of Immunology

Saddleback CollegeImmunology

MLT 243 Immunology, Unit 1 (251-286) Exam with precise answers

Typology: Exams

2024/2025

Available from 07/08/2025

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MLT |! 243 |! Immunology, |! Unit |! 1 |! (251-286) |!
Exam |! with |! precise |! answers
251) |! What |! complement |! components |! has |! chemotactic |! activity? |! - |! Correct |!
answer |! ✔C3a
252) |! The |! C3 |! convertase |! of |! the |! alternative |! pathway |! of |! complement |!
activation |! is: |! - |! Correct |! answer |! ✔C3bBbP
253) |! The |! target |! recognition |! molecule |! of |! the |! lectin |! pathway |! that |! initiates |!
complement |! activation |! is: |! - |! Correct |! answer |! ✔mannose-binding |! lectin
254) |! Which |! immunoglobulin(s) |! help(s) |! initiate |! the |! classic |! complement |!
pathway? |! - |! Correct |! answer |! ✔IgG |! and |! IgM
255) |! What |! has |! perforin-like |! activity? |! - |! Correct |! answer |! ✔C5b6789
256) |! What |! is |! cleaved |! by |! C4b2a3b? |! - |! Correct |! answer |! ✔C5
257) |! A |! patient |! has |! an |! abnormal |! alternative |! pathway |! activation |! pattern. |!
What |! complement |! proteins |! should |! be |! assessed |! to |! further |! elucidate |! the |!
problem? |! - |! Correct |! answer |! ✔C3
pf3
pf4
pf5

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MLT |! 243 |! Immunology, |! Unit |! 1 |! (251-286) |!

Exam |! with |! precise |! answers

  1. |! What |! complement |! components |! has |! chemotactic |! activity? |! - |! Correct |! answer |! ✔C3a
  2. |! The |! C3 |! convertase |! of |! the |! alternative |! pathway |! of |! complement |! activation |! is: |! - |! Correct |! answer |! ✔C3bBbP
  3. |! The |! target |! recognition |! molecule |! of |! the |! lectin |! pathway |! that |! initiates |! complement |! activation |! is: |! - |! Correct |! answer |! ✔mannose-binding |! lectin
  4. |! Which |! immunoglobulin(s) |! help(s) |! initiate |! the |! classic |! complement |! pathway? |! - |! Correct |! answer |! ✔IgG |! and |! IgM
  5. |! What |! has |! perforin-like |! activity? |! - |! Correct |! answer |! ✔C5b
  6. |! What |! is |! cleaved |! by |! C4b2a3b? |! - |! Correct |! answer |! ✔C
  7. |! A |! patient |! has |! an |! abnormal |! alternative |! pathway |! activation |! pattern. |! What |! complement |! proteins |! should |! be |! assessed |! to |! further |! elucidate |! the |! problem? |! - |! Correct |! answer |! ✔C
  1. |! The |! C5 |! convertase |! of |! the |! classical |! pathway |! of |! complement |! activation |! is: |! - |! Correct |! answer |! ✔C4b2a3b
  2. |! A |! deficiency |! in |! complement |! component |! C2 |! would |! result |! in: |! - |! Correct |! answer |! ✔immune |! complex |! disease
  3. |! What |! represents |! C3 |! convertase? |! - |! Correct |! answer |! ✔C4b2a |! and |! C3bBbP
  4. |! Which |! factors |! are |! only |! associated |! with |! the |! alternative |! pathway? |! - |! Correct |! answer |! ✔factor |! B |! and |! factor |! D
  5. |! The |! lectin |! pathway |! is |! initiated |! by |! the |! presence |! of |! what? |! - |! Correct |! answer |! ✔Mannose
  6. |! The |! membrane |! attack |! unit |! of |! complement |! is |! represented |! by |! what? |! - |! Correct |! answer |! ✔C5b
  7. |! Which |! complement |! factor |! polymerizes |! to |! cause |! lysis |! of |! a |! foreign |! cell? |!
  • |! Correct |! answer |! ✔C
  1. |! The |! recognition |! unit |! in |! the |! classical |! complement |! pathway |! consists |! of: |!
  • |! Correct |! answer |! ✔C1qrs
  1. |! In |! the |! alternate |! pathway, |! factor |! B |! must |! bind |! to |! what |! to |! initiate |! the |! cascade? |! - |! Correct |! answer |! ✔C3b
  2. |! Which |! factor |! must |! be |! associated |! with |! factor |! H |! to |! inactivate |! complement |! components? |! - |! Correct |! answer |! ✔Factor |! I
  3. |! Lack |! of |! the |! complement |! components |! C5-C8 |! may |! result |! in |! which |! disease? |! - |! Correct |! answer |! ✔meningitis
  4. |! Which |! factor |! helps |! to |! dissociate |! C3b |! from |! red |! blood |! cells? |! - |! Correct |! answer |! ✔DAF
  5. |! Which |! protein |! inhibits |! the |! classical |! complement |! pathway |! at |! the |! very |! beginning |! of |! it? |! - |! Correct |! answer |! ✔C1INH
  6. |! What |! are |! important |! functions |! of |! the |! complement |! system? |! - |! Correct |! answer |! ✔Lysis |! of |! foreign |! cells, |! Increase |! in |! vascular |! permeability, |! Clearance |! of |! antigen-antibody |! complexes
  7. |! Formation |! of |! the |! membrane |! attack |! complex |! (C5b-C9) |! is |! stopped |! by |! which |! factor? |! - |! Correct |! answer |! ✔S |! protein
  8. |! What |! is |! characteristic |! of |! complement |! components? |! - |! Correct |! answer |! ✔They |! play |! a |! major |! part |! in |! the |! inflammatory |! response.
  1. |! C4BP |! acts |! in |! association |! with |! which |! factor |! to |! inactivate |! C4b? |! - |! Correct |! answer |! ✔Factor |! I
  2. |! All |! of |! the |! following |! statements |! are |! true |! of |! C3 |! except |! - |! Correct |! answer |! ✔It |! is |! known |! as |! the |! recognition |! unit.
  3. |! What |! is |! referred |! to |! as |! C5 |! convertase? |! - |! Correct |! answer |! ✔C4b2a3b
  4. |! What |! activities |! are |! associated |! only |! with |! the |! alternative |! pathway |! of |! complement |! fixation? |! - |! Correct |! answer |! ✔Factor |! B |! and |! C3b |! combination
  5. |! A |! system |! of |! serum |! proteins |! that |! interact |! to |! enhance |! the |! immune |! response |! by |! producing |! cytolytic, |! chemotactic, |! and |! other |! effects |! best |! describes: |! - |! Correct |! answer |! ✔complement