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Bio 256 Final Exam -2 questions with 100% correct answers
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Bio 256 Final ExamWhich involves physical breakdown of food you have eaten? - answersmechanical
digestion
Which phase of deglutition is controlled involuntarily? - answersboth pharyngeal and
esophageal
Which phase of deglutition is controlled voluntarily? - answersbuccal
Which branch of the nervous system inhibits salivation and causes you to have a dry
mouth? - answerssympathetic nervous system
gastrin, serotonin, and somatostatin are gastric hormones. which of these cell types
synthesize and secrete these products? - answersenteroendocrine cells
Select the correct statement about the regulation of gastric secretion. - answersgastric
secretion can be stimulated before food has entered the mouth
The function of small intestine microvilli is... - answersIncrease surface area for
absorption
a fluid secreted into the small intestine during digestion that contains cholesterol,
emulsification agents, and phospholipids is - answersbile
Which is an exocrine product of the pancreas? - answersamylase and trypsin
which hormone induces secretion of enzyme-rich pancreatic juice? - answersCCK
(cholecytokinin)
Where is cholecystokinin (CCK) produced? - answersduodenal mucosa
, how does gastrin affect the stomach? - answersit causes the gastric glands to increase
secretory activity, profoundly increasing HCl secretion
Select the correct statement about absorption - answersIf intact proteins are transported
across the villus epithelium, an immune response may be generated.
Excessive clonic water absorption results in... - answersConstipation
Which is not a beneficial function of the normal bacterial flora of the colon? -
answersferment indigestible carbohydrates, producing flatus
distal movement of chyme requires - answersrelaxation of distal circular muscles and
contraction of distal longitudinal muscles
Which of the following enzymes is specific for protein digestion? - answerstrypsin
Most electrolyte absorption occurs in - answerssmall intestine.
What is the primary function of carbohydrates? - answersmaintain energy production
within the cells.
Dietary fats are important because - answersthey help the body absorb fat-soluble
vitamins.
Select the correct statement about proteins. - answersProteins will be used for ATP
synthesis if insufficient calories are ingested.
Vitamins are organic compounds. They - answersoften function as coenzymes to assist
in catalysis
Glycolysis is best defined as the - answersconversion of glucose into two molecules of
pyruvate.
Glucose can be obtained from - answersglycogenolysis
In carbohydrate metabolism, the carbohydrates - answersare converted into fat if
present in excess.
Transamination, oxidative deamination, and keto modication all occur in the: -
answersliver
Which is not a function of cholesterol? - answersUsed for energy
Triglycerides synthesized in hepatocytes are transported to adipocytes by -
answersVLDL'S
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