Probiotics MCB6424 Exam 2
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Immunity - 🧠ANSWER ✔✔The general ability of a host to resist a particular
disease/infection
Immunology - 🧠ANSWER ✔✔The science concerned with immune
responses
Nonspecific immune response - 🧠ANSWER ✔✔Innate; the first line of
defense that offers resistance to any foreign material; has no memory
,Specific immune response - 🧠ANSWER ✔✔Acquired/adaptive; offers
resistance to a specific antigen; has a memory that will cause second
exposure to be dealt with more quickly/effectively
Antigen - 🧠ANSWER ✔✔A foreign substance that evokes an immune
response; an ANTIbody GENerator
Hematopoiesis - 🧠ANSWER ✔✔The development of WBCs in the bone
marrow; all WBCs that mature in the bone marrow join the innate immune
system while all WBCs that mature outside of the bone marrow join the
adaptive immune system
Erythrocytes - 🧠ANSWER ✔✔The most abundant cell found in the blood
Neutrophils - 🧠ANSWER ✔✔The most abundant WBC (60%); highly
phagocytic (use granules of lytic enzymes to kill ingested pathogens)
Lymphocytes - 🧠ANSWER ✔✔30% of WBCs; differentiate into T-cells, B-
cells, and NK cells
Monocytes - 🧠ANSWER ✔✔6% of WBCs; phagocytic; after 8 hours of
circulation, mature into macrophages upon arrival to specific tissues
, Eosinophils - 🧠ANSWER ✔✔3% of WBCs; are important in fighting
parasitic infections
Basophils - 🧠ANSWER ✔✔1% of WBCs; are important in inflammation
Dendritic cells - 🧠ANSWER ✔✔Present in small numbers as "guards" of the
immune system all over the body; phagocytic; APCs
B-cells - 🧠ANSWER ✔✔Mature in the bone marrow; differentiate into
plasma cells (which produce antibodies) or memory cells upon activation by
an antigen
T-cells - 🧠ANSWER ✔✔Mature in the thymus; differentiate into helper T-
cells, CTLs, or memory cells upon activation by an antigen; produce
cytokines
Natural killer cells - 🧠ANSWER ✔✔Non-phagocytic granular lymphocytes;
kill any cell that does not have a normal MHC-I receptor; can bind to
antibodies and lyse pathogens via ADCC
Thymus and bone marrow - 🧠ANSWER ✔✔Primary lymphoid organs;
places where lymphocytes mature and differentiate
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2026 Expert Verified | Ace the
Test
Immunity - 🧠ANSWER ✔✔The general ability of a host to resist a particular
disease/infection
Immunology - 🧠ANSWER ✔✔The science concerned with immune
responses
Nonspecific immune response - 🧠ANSWER ✔✔Innate; the first line of
defense that offers resistance to any foreign material; has no memory
,Specific immune response - 🧠ANSWER ✔✔Acquired/adaptive; offers
resistance to a specific antigen; has a memory that will cause second
exposure to be dealt with more quickly/effectively
Antigen - 🧠ANSWER ✔✔A foreign substance that evokes an immune
response; an ANTIbody GENerator
Hematopoiesis - 🧠ANSWER ✔✔The development of WBCs in the bone
marrow; all WBCs that mature in the bone marrow join the innate immune
system while all WBCs that mature outside of the bone marrow join the
adaptive immune system
Erythrocytes - 🧠ANSWER ✔✔The most abundant cell found in the blood
Neutrophils - 🧠ANSWER ✔✔The most abundant WBC (60%); highly
phagocytic (use granules of lytic enzymes to kill ingested pathogens)
Lymphocytes - 🧠ANSWER ✔✔30% of WBCs; differentiate into T-cells, B-
cells, and NK cells
Monocytes - 🧠ANSWER ✔✔6% of WBCs; phagocytic; after 8 hours of
circulation, mature into macrophages upon arrival to specific tissues
, Eosinophils - 🧠ANSWER ✔✔3% of WBCs; are important in fighting
parasitic infections
Basophils - 🧠ANSWER ✔✔1% of WBCs; are important in inflammation
Dendritic cells - 🧠ANSWER ✔✔Present in small numbers as "guards" of the
immune system all over the body; phagocytic; APCs
B-cells - 🧠ANSWER ✔✔Mature in the bone marrow; differentiate into
plasma cells (which produce antibodies) or memory cells upon activation by
an antigen
T-cells - 🧠ANSWER ✔✔Mature in the thymus; differentiate into helper T-
cells, CTLs, or memory cells upon activation by an antigen; produce
cytokines
Natural killer cells - 🧠ANSWER ✔✔Non-phagocytic granular lymphocytes;
kill any cell that does not have a normal MHC-I receptor; can bind to
antibodies and lyse pathogens via ADCC
Thymus and bone marrow - 🧠ANSWER ✔✔Primary lymphoid organs;
places where lymphocytes mature and differentiate
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
