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Exam -3 Bio 235 Athabasca with complete verified solutions already graded A+
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Exam -3 Bio 235 Athabasca with complete verified solutions already graded A+
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Exam #3 Bio 235 Athabascawith complete verified
solutions already graded A+
Trypsin - answer digests proteins into peptides. Acts on inactive
processors to produce chymotrypsin, carboxypeptidase and elastase
Secretin - answer Stimulates the flow of pancreatic juice rich in
bicarbonate. inhibits secretion of gastric juice, enhances effects of CCK
and promotes normal growth of pancreas. Buffering ion acid in chyme
Inhibin - answer Inhibits FSH secretion by anterior pituitary. Secreted by
granulose cells of growing follicles and the corpus lute after ovulation
Aldosterone - answer increases reabsorption of Na and water by the
kidneys. this water reabsorption increases total blood volume and
increases blood pressure
Antidiuretic hormone (ADH) - answer is releases in response to
dehydration or decreased blood volume. Causes vasoconstriction which
increases blood pressure.
Promotes movement of water from lumen of kidney tubules into the
bloodstream
enhances water reabsorption by kidneys
Angiotensin II - answer Raises blood pressure by increasing systemic
vascular resistance
potent vasoconstricter
stimulates secretion of aldosterone
,Thrombin - answer converts soluble fibrinogen into insoluble fibrin which
forms the threads of the clot
Lingual Lipase - answer acts on as much as 30% of the dietary
triglycerides and converts them to simpler fatty acids and diglycerides.
Becomes activated in the acidic environment of the stomach thus starts
working after food has been swallowed
Salivary Amylase - answer A digestive enzyme that acts on starch
activated by chloride ions in saliva
breaks start down into maltose, maltatroise and a-dextrin
continues to break down food after it has been swallowed for about an
hour
Basophil - answer release granules that contain heparin, histamine and
serotonin which all intensify inflammatory reactions and are involved in
allergic reactions
similar function as mast cells
.5-1% of all WBC
Neutrophils - answer release several chemicals to destroy a pathogen
contain defensins which poke holes in microbe membranes
Participate in destruction of bacteria
Phagocytosis
60-70% of all WBC
Monocyte - answer Arrive in larger numbers and destroy more microbes.
Once arriving they enlarge and differentiate into wandering macrophages,
which clean up cellular debris and microbes by phagocytosis after an
infection
3-8% of all WBC
, Eosinophil - answer Believed to release enzymes such as histaminase
that combat the effects of histamine and other substances involved in
inflammation during allergic reactions
phagocytize antigen-antibody complexes and are effective against
parasitic worms
2-4% of all WBC
Plasma proteins - answer Albumins
Globulins
Fibrinogen
GnRH - answer stimulates gonadotrophs in the anterior pituitary to
increase secretion of luteinizing hormone (LH) and follicle stimulating
hormone (FSH)
Controls the ovarian uterine cycles
Blastomere - answer the progressively smaller cells produced by
cleavage
P Wave - answer a small upward deflection. Represents atrial
depolarization which spreads from the SA node through contractile fibres
in both atria
QRS complex - answer a downward deflection, continues as a large
upright, triangular wave, ends as a downward wave.
represents rapid ventricular depolarization
T wave - answer A dome-shaped upward deflection
ventricular depolarization and occurs as the ventricles are starting to
relax.
Smaller QRE complex causes depolarization occurs more slowly than
depolarization
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