Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Biology 20 Final Exam (Alberta) Questions
and Correct Answers | Latest Update
Neutrophils
White blood Cell (granulocyte), sphirical, multilobed nuceli, granulated,
10-14 um
Basophils
White Blood Cell (granulocyte), sphirical, lobed nuclei, irregularly shaped,
release histamine, promotes blood flow to injury, granulated, 10 -12 um,
nucleus fills whole cell
Eosinophils
White Blood Cell (granulocyte), sphirical, bilobed nuceli, granulated, 10 -
14 um, phagocytize antigen - antibody complexes
Monocytes
White Blood Cell, Can leave blood stream, further specialize as
macrophages that destroy bacteria, kidney shaped nuclei, nongranular
Lymphocytes
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
White Blood Cell, non granular, thymus and red bone marrow, play role in
the formation of antibodies(defense function)
Plasma
Fluid portion of the blood, made up of water plus dissolved gases,
proteins, sugars, vitamins, minerals, hormones, waste products. Transports
blood cells, oxygen, carbon dioxide, etc.
Red Blood Cell
(Erythrocyte) Blood cell that contains the respiratory protein hemoglobin
and is specialized for oxygen transport, no nucleus (formed part of blood)
White Blood Cell
(leukocyte) Colorless blood cell that protects the body from infection by
way of the immune response, plays a role in allergic reactions and
inflammation. Three types: granulocytes, monocytes, lymphocytes (formed
part of blood)
Platelet
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Component of the formed portion of the blood, consisting of fragments of
cells that are created when larger cells in the b one marrow break apart,
contains no nucleus and plays a key role in blood clotting
Vasodilation
Expansion in the diameter of blood vessels; near the skin brings more
blood to the surface to reduce body temperature
Vasoconstriction
Decrease in the diameter of blood vessels; near the skin conserves body
heat
Atrioventricular (AV) node
Bundle of specialized muscle tissue located int he wall of the right atrium;
receives electrical stimulus from the SA nose and transmits this impulse over
the walls of the ventricles to start their contraction
Bundle of His
Bundle of specialized fibers through which an electrical signal is
transmitted from the AV node, initiating the contraction of the right and
left ventricles
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Aorta
Major artery that carries oxygenated blood away from the heart to all
regions of the body, except lungs
Tricuspid Valve
(atrioventricular) Separates the right atria and ventricle, 3 flaps
Bicuspid Valve
(atrioventricular) Separates the left a tria and ventricle, 2 flaps
Semilunar Valves
(Aortic + Pulmonary) Look like half moons, keep the blood when it is
pumped to the lungs and body from leaking back into the heart
Circulatory System
System of vessels that transports blood, the cells and substances
suspended and dissolved in blood throughout the body. Links all systems;
transports oxygen, waste, nutrients, hormones, medicine, enzymes, etc.
Regulates internal temperature, protects against blood loss from injury,
disease causing microbes, or toxic substances introduced to the body.
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
