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Exams and Study

MLT 243 Immunology, Unit 1 (1-50) Exam with precise detailed answers, Exams of Immunology

Saddleback College Immunology

MLT 243 Immunology, Unit 1 (1-50) Exam with precise detailed answers

Typology: Exams

2024/2025

Available from 07/08/2025

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MLT |! 243 |! Immunology, |! Unit |! 1 |!

(1-50) |! Exam |! with |! precise |!

answers

1) |! Eosinophils |! are |! involved |! in |! the |! immune |! response |! against: |! - |! Correct |!

answer |! ✔multicellular |! parasites

2) |! What |! are |! considered |! to |! be |! an |! acute |! phase |! protein?

a. |! serum |! amyloid |! A

b. |! streptolysin |! O

c. |! cardiolipin

d. |! reagin |! - |! Correct |! answer |! ✔A

3) |! A |! patient |! is |! tested |! for |! the |! presence |! of |! C-reactive |! protein |! and |! is |! found |! to

|! have |! an |! elevated |! level. |! What |! does |! this |! indicate |! is |! taking |! place |! in |! the |!

patient? |! - |! Correct |! answer |! ✔inflammation

4) |! What |! are |! directly |! used |! in |! oxidative |! killing |! of |! target |! cells? |! - |! Correct |!

answer |! ✔Lysozyme

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Download MLT 243 Immunology, Unit 1 (1-50) Exam with precise detailed answers and more Exams Immunology in PDF only on Docsity!

MLT |! 243 |! Immunology, |! Unit |! 1 |!

(1-50) |! Exam |! with |! precise |!

answers

|! Eosinophils |! are |! involved |! in |! the |! immune |! response |! against: |! - |! Correct |! answer |! ✔multicellular |! parasites
|! What |! are |! considered |! to |! be |! an |! acute |! phase |! protein? a. |! serum |! amyloid |! A b. |! streptolysin |! O c. |! cardiolipin d. |! reagin |! - |! Correct |! answer |! ✔A
|! A |! patient |! is |! tested |! for |! the |! presence |! of |! C-reactive |! protein |! and |! is |! found |! to |! have |! an |! elevated |! level. |! What |! does |! this |! indicate |! is |! taking |! place |! in |! the |! patient? |! - |! Correct |! answer |! ✔inflammation
|! What |! are |! directly |! used |! in |! oxidative |! killing |! of |! target |! cells? |! - |! Correct |! answer |! ✔Lysozyme

|! A |! protein |! that |! only |! changes |! in |! concentration |! significantly |! in |! response |! to |! inflammation |! and |! is |! not |! detectable |! when |! there |! is |! no |! inflammation |! is |! called |! a/an: |! - |! Correct |! answer |! ✔acute |! phase |! protein
|! What |! can |! be |! measured |! as |! an |! indicator |! of |! inflammation? |! - |! Correct |! answer |! ✔Temperature, |! number |! of |! WBCs, |! and |! erythrocyte |! sedimentation |! rate
|! What |! cells |! are |! components |! of |! innate |! (natural) |! immunity? |! - |! Correct |! answer |! ✔Macrophages
|! Neutrophils |! and |! macrophages |! use |! all |! of |! the |! following |! to |! kill |! bacteria |! EXCEPT: a. |! H2O b. |! perforin c. |! hydroxyl |! radical d. |! lysozyme e. |! superoxide |! anion |! - |! Correct |! answer |! ✔B
|! What |! is |! a |! characteristic |! of |! circulating |! neutrophils |! (PMN)? a. |! lyse |! cells |! with |! perforin b. |! recognize |! antigen |! with |! an |! antigen-specific |! receptor c. |! have |! surface |! receptors |! for |! Fc |! of |! IgG d. |! have |! surface |! receptors |! for |! C5a |! - |! Correct |! answer |! ✔C. |! have |! surface |! receptors |! for |! Fc |! of |! IgG

|! The |! respiratory |! burst |! is: |! - |! Correct |! answer |! ✔an |! increase |! in |! oxygen |! consumption
|! What |! is |! part |! of |! the |! external |! defense |! system? |! - |! Correct |! answer |! ✔skin
|! Which |! is |! characteristic |! of |! natural |! immunity? |! - |! Correct |! answer |! ✔It |! depends |! on |! normally |! present |! body |! functions.
|! What |! is |! the |! major |! function |! of |! C-reactive |! protein |! (CRP)? |! - |! Correct |! answer |! ✔acts |! as |! an |! opsoni
|! All |! of |! the |! following |! are |! considered |! part |! of |! natural |! immunity |! EXCEPT: a. |! eosinophils b. |! lymphocytes c. |! acute |! phase |! reactants d. |! neutrophils |! - |! Correct |! answer |! ✔B
|! Where |! does |! the |! immune |! response |! to |! foreign |! antigen |! in |! the |! tissue |! mainly |! occur? |! - |! Correct |! answer |! ✔lymph |! nodes
|! Which |! white |! cell |! in |! the |! peripheral |! blood |! migrates |! to |! the |! tissue |! to |! become |! a |! macrophage? |! - |! Correct |! answer |! ✔monocyte
|! What |! acute |! phase |! reactants |! is |! an |! important |! clotting |! factor? |! - |! Correct |! answer |! ✔fibrinogen

|! Which |! substance |! best |! inactivates |! bacterial |! proteins? |! - |! Correct |! answer |! ✔OCl-
|! A |! white |! blood |! cell |! that |! is |! 16 |! to |! 18 |! um |! in |! diameter, |! has |! a |! horseshoe- shaped |! nucleus, |! and |! is |! capable |! of |! further |! differentiation |! in |! the |! tissues |! best |! describes: |! - |! Correct |! answer |! ✔monocyte
|! Jenner's |! discovery |! that |! cowpox |! generated |! immunity |! against |! smallpox |! is |! based |! on |! the |! principle |! of: |! - |! Correct |! answer |! ✔cross-immunity
|! All |! of |! the |! following |! are |! characteristic |! of |! acute |! phase |! reactants |! EXCEPT: a. |! increase |! rapidly |! in |! response |! to |! infection b. |! used |! to |! diagnose |! a |! specific |! disease c. |! enhance |! phagocytosis d. |! promote |! inflammation |! - |! Correct |! answer |! ✔B
|! What |! is |! the |! function |! of |! the |! acute |! phase |! protein |! haptoglobin? |! - |! Correct |! answer |! ✔binds |! hemoglobin
|! Measurement |! of |! CRP |! levels |! could |! be |! used |! for |! What? |! - |! Correct |! answer |! ✔to |! determine |! risk |! of |! a |! heart |! attack, |! to |! determine |! flare-up |! of |! rheumatoid |! arthritis, |! to |! detect |! an |! inflammatory |! process

A. |! Memory |! is |! involved. B. |! Lymphocytes |! play |! a |! major |! role. C. |! It |! is |! very |! specific. D. |! It |! depends |! on |! normally |! present |! body |! functions. |! - |! Correct |! answer |! ✔D. |! It |! depends |! on |! normally |! present |! body |! functions.

|! All |! of |! the |! following |! are |! characteristic |! of |! a |! lymph |! node |! EXCEPT: a. |! filters |! drainage |! from |! tissues b. |! colonized |! with |! T |! and |! B |! cells c. |! between |! 1 |! and |! 25 |! mm |! in |! size d. |! considered |! a |! primary |! or |! central |! lymphoid |! organ |! - |! Correct |! answer |! ✔D. |! considered |! a |! primary |! or |! central |! lymphoid |! organ
|! What |! represents |! the |! best |! explanation |! for |! the |! action |! of |! natural |! killer |! (NK) |! cells? |! - |! Correct |! answer |! ✔They |! kill |! by |! releasing |! perforins
|! All |! of |! the |! following |! are |! considered |! part |! of |! natural |! immunity |! EXCEPT: a. |! eosinophils b. |! lymphocytes c. |! acute |! phase |! reactants d. |! neutrophils |! - |! Correct |! answer |! ✔B. |! lymphocytes
|! Macrophages |! that |! migrate |! to |! the |! liver |! are |! called: |! - |! Correct |! answer |! ✔Kupffer |! cells

|! Acquired |! immunity |! can |! be |! characterized |! by |! What? |! - |! Correct |! answer |! ✔involves |! memory
|! The |! ability |! to |! resist |! infection |! through |! normally |! present |! body |! functions |! best |! characterizes: |! - |! Correct |! answer |! ✔natural |! immunity
|! A |! white |! blood |! cell |! described |! as |! between |! 12 |! to |! 22 |! um |! with |! a |! large |! horseshoe-shaped |! nucleus |! that |! further |! differentiates |! in |! the |! tissue |! to |! become |! a |! macrophage |! best |! describes: |! - |! Correct |! answer |! ✔monocyte
|! What |! is |! considered |! part |! of |! the |! internal |! defense |! system? a. |! cilia b. |! mucous |! membranes c. |! neutrophils d. |! acidity |! of |! the |! skin |! - |! Correct |! answer |! ✔c. |! neutrophils
|! All |! of |! the |! following |! are |! part |! of |! the |! process |! of |! phagocytosis |! EXCEPT: a. |! formation |! of |! a |! phagosome b. |! creation |! of |! hypochlorite |! radicals c. |! formation |! of |! fibrin |! clots d. |! outflowing |! of |! cell |! cytoplasm |! - |! Correct |! answer |! ✔c. |! formation |! of |! fibrin |! clots
|! All |! of |! the |! following |! are |! examples |! of |! natural |! immunity |! EXCEPT: