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BIO 139 Final Exam Study Guide Questions & Answers Verified 100% Correct!!
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BIO 139 Final Exam Study Guide Questions & Answers Verified 100% Correct!!
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Name: Score:151 Multiple choice questions
Term 1 of 151
True or false: ACTH binds and activates intracellular receptors at its target cells.
True
False
Term 2 of 151
The autorhytmic manner of cardiomyocytes refers to what?
Their dependence on nerve endings to trigger action potentials
Their ability to generate the heart sounds 'lub' and 'dub'
Their "all or none" action
their ability to generate their own action potentials
Term 3 of 151
A B cell differentiates into this cell type which is responsible for producing and secreting
antibodies.
plasma cell
memory B cell
natural killer cell
lymphoblast
,Term 4 of 151
T cells mature in this anatomical structure in the body.
A. the bone marrow
B. the thymus
C. the lymphatic capillaries
D. both A and B
Term 5 of 151
A protein kinase will activate or inhibit its targets via this mechanism.
phosphorylation
Stimulating the release of Ca2+
Generation of cAMP
activating a hormone response element
Term 6 of 151
The _______ flows adjacent to the juxtamedullary nephrons loop of Henle and contains circulating
blood.
Efferent arteriole
Peritubular capillary
vasa recta
Afferent arteriole
Collecting duct
,Term 7 of 151
Low circulating levels of Ca2+ in the blood will trigger the release of what hormone?
parathyroid hormone
calcitonin
ACTH
insulin
Term 8 of 151
Natural killer cells function by stimulating infected cells of the body to do what?
proliferate
migrate into the lymphatic system
undergo apoptosis
present foreign antigens on their cell surface
Term 9 of 151
To prevent the ventricles from contracting prior to being filled by the atria, the _______ acts to slow
the electrical signals traveling through the heart.
Adventitia
Sinoatrial node
Atrioventricular node
Purkinje fibers
, Term 10 of 151
What are causes of anemia and why do they lead to anemia?
excessive rbc, high hb, dehydration increases blood viscosity
low rbc, normal hb, high iron levels improve oxygen transport
insufficient RBC, abnormal Hb, low Hb, iron deficiency creates low O2 carrying capacity
normal rbc, elevated hb, vitamin overdose enhances oxygen delivery
Term 11 of 151
Mineral corticoids released from the adrenal gland will play a role in regulating which of the
following molecules?
testosterone
Glucose
insulin
Na+ and K+
Term 12 of 151
High circulating levels of thyroid hormone (T3 and T4) will inhibit the release of what hormone
from the hypothalamus?
TSH
CRH
TRH
GH
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