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Exam #3 Bio 235 Athabasca Study Guide.

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Bio 235

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©SIRJOEL EXAM SOLUTIONS 10/3/2024 9:54 PM Exam #3 Bio 235 Athabasca Study Guide. Trypsin - answerdigests proteins into peptides. Acts on inactive processors to produce chymotrypsin, carboxypeptidase and elastase Secretin - answerStimulates the flow of pancreatic juice rich in bicarbonate. inh...

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©SIRJOEL EXAM SOLUTIONS
10/3/2024 9:54 PM

Exam #3 Bio 235 Athabasca Study Guide.

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

, ©SIRJOEL EXAM SOLUTIONS
10/3/2024 9:54 PM

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

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