BIO 320 EXAM 2 NEWEST 2025/ 2026 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+||LATEST
UPDATE!!!
Which of the following are phagocytic cells that act as
professional antigen-presenting cells (pAPCs), which
activate naïve T cells during the primary adaptive
response? (select all correct answers)
a. macrophage
b. mast cell
c. dendritic cell
d. megakaryocyte
e. neutrophil - ANSWER-macrophage
dendritic cell
Following diapedesis, neutrophils follow a gradient of
_______ as they move toward the pathogen to be
eliminated. - ANSWER-chemokines
What are the three kinds of human blood cells? -
ANSWER-Erythrocytes
Thrombocytes
,2|Page
Leukocytes
Erythrocytes - ANSWER-Dominate blood cell population -
95%
RBCs
Contain hemoglobin
Thrombocytes - ANSWER-Fragments of cells
Smaller than RBCs
Platlets
Managing blood loss due to injury
Leukocytes - ANSWER-White blood cells
Hematopoiesis - ANSWER-process of creating blood cells
in the bone marrow
starting with stem cells
Neutrophils - ANSWER-30-60% of leukocytes
polymorphic nucleus
PMNs (poly morpho nucleuo)
, 3|Page
early responder to inflammatory response
NETs (Neutrophil Extracellular Trap)
Granlocytes - ANSWER-neutrophils
eosinophils
basophils
*All innate immunity
Agranulocytes - ANSWER-monocytes - innate immunity
lymphocytes - adaptive immunity
What enzyme produces ROS? - ANSWER-NADPH
Oxidase
Eosinophils - ANSWER-<5% of leukocytes
Anti-parasite response
Cytokines and chemokines (inflammation)
Basophils and Mast cells - ANSWER-degranulation to
release inflammatory cytokines, such as histamine