MLT 106 Unit 1 2025/2026 Exam
Questions and Correct Answers | New
Update
Immune System (IS) - 🧠ANSWER ✔✔Tissues, cells and biological
mediators that work together defending or protecting host organism from
foreign substances and abnormal cells
Immunity - 🧠ANSWER ✔✔Process by which a host organism protects itself
from attacks by external and internal agents
Acquired immunity - 🧠ANSWER ✔✔Formation of specific antigen-antibody
and specific responses
Self - 🧠ANSWER ✔✔Anything that is derived from the host
Nonself - 🧠ANSWER ✔✔Anything physically outside the host
What are the major components of the vertebrate immune system? -
🧠ANSWER ✔✔Cellular and humoral immunity
Cellular immunity - 🧠ANSWER ✔✔Mediated by various IS cells
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STATEMENT. ALL RIGHTS RESERVED
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,Cytokines - 🧠ANSWER ✔✔Protein or peptide molecules function as
powerful mediators of immune system
Lymphokines - 🧠ANSWER ✔✔Produced by lymphocytes
Monokines - 🧠ANSWER ✔✔Monocytes and macrophages
Chemokines - 🧠ANSWER ✔✔Attractant molecules that interact between
cells and complement proteins and are important in destroying pathogens
Phagocytes - 🧠ANSWER ✔✔Complex molecular structures on surface of
invading cells or in secretions and fluids of the host body
Humoral immunity - 🧠ANSWER ✔✔Fluid parts of IS
What is the most important part of humoral immunity? - 🧠ANSWER
✔✔Antibody
What are antibodies also called? - 🧠ANSWER ✔✔Immunoglobulins
What are the two major parts of Immune System? - 🧠ANSWER ✔✔Innate
and Adaptive (Acquired) immunity
Innate immunity - 🧠ANSWER ✔✔Nonspecific IS
- immediate line of immune defense
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
, - present at birth
- external
- no modifications needed
What cells are of the innate immune system? - 🧠ANSWER ✔✔Phagocytic
leukocytes and natural killer cells
What are the two major phagocytic cells? - 🧠ANSWER
✔✔Polymorphonuclear cells
Mononuclear cells
What are the three major roles of complement in immunity? - 🧠ANSWER
✔✔Lysis
Opsonization and phagocytosis
Mediation of inflammation
Adaptive (acquired) Immunity - 🧠ANSWER ✔✔Most highly evolved
- most specific
- evolves via specific contact
- adapt to and destroy new pathogens
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
Questions and Correct Answers | New
Update
Immune System (IS) - 🧠ANSWER ✔✔Tissues, cells and biological
mediators that work together defending or protecting host organism from
foreign substances and abnormal cells
Immunity - 🧠ANSWER ✔✔Process by which a host organism protects itself
from attacks by external and internal agents
Acquired immunity - 🧠ANSWER ✔✔Formation of specific antigen-antibody
and specific responses
Self - 🧠ANSWER ✔✔Anything that is derived from the host
Nonself - 🧠ANSWER ✔✔Anything physically outside the host
What are the major components of the vertebrate immune system? -
🧠ANSWER ✔✔Cellular and humoral immunity
Cellular immunity - 🧠ANSWER ✔✔Mediated by various IS cells
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,Cytokines - 🧠ANSWER ✔✔Protein or peptide molecules function as
powerful mediators of immune system
Lymphokines - 🧠ANSWER ✔✔Produced by lymphocytes
Monokines - 🧠ANSWER ✔✔Monocytes and macrophages
Chemokines - 🧠ANSWER ✔✔Attractant molecules that interact between
cells and complement proteins and are important in destroying pathogens
Phagocytes - 🧠ANSWER ✔✔Complex molecular structures on surface of
invading cells or in secretions and fluids of the host body
Humoral immunity - 🧠ANSWER ✔✔Fluid parts of IS
What is the most important part of humoral immunity? - 🧠ANSWER
✔✔Antibody
What are antibodies also called? - 🧠ANSWER ✔✔Immunoglobulins
What are the two major parts of Immune System? - 🧠ANSWER ✔✔Innate
and Adaptive (Acquired) immunity
Innate immunity - 🧠ANSWER ✔✔Nonspecific IS
- immediate line of immune defense
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
, - present at birth
- external
- no modifications needed
What cells are of the innate immune system? - 🧠ANSWER ✔✔Phagocytic
leukocytes and natural killer cells
What are the two major phagocytic cells? - 🧠ANSWER
✔✔Polymorphonuclear cells
Mononuclear cells
What are the three major roles of complement in immunity? - 🧠ANSWER
✔✔Lysis
Opsonization and phagocytosis
Mediation of inflammation
Adaptive (acquired) Immunity - 🧠ANSWER ✔✔Most highly evolved
- most specific
- evolves via specific contact
- adapt to and destroy new pathogens
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
