BIOS 256 Exit Exam - –Answer propulsion 2. saliva functions as –...

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BIOS 256 Exit Exam

• which is how food moves though the gastrointestinal tract by using peristal- sis?

–Answer propulsion

• saliva functions as

–Answer lubricant

• which of the following is not true of saliva?

–Answer contains enzymes that begin the breakdown of proteins

• which of the following stomach cells produce intrinsic factor?

–Answer parietal cells

• which of the following is NOT a phase of gastric secretion?

–Answer enterogastric

• the function of small intestine brunner glands is

–Answer secrete alkaline mucus

• hepatocytes do NOT

–Answer store fat soluble vitamins

• which hormone induces secretion of bicarbonate-rich pancreatic juice?

–Answer se- cretin

• gastric inhibitory peptide (GIP) has what effect(s) on the stomach?

–Answer it inhibits gastric gland secretion and gastric motility 1 / 3

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• where is gastrin produced?

–Answer stomach mucosa

• the small intestines intrinsic pacemaker cells (Cajal cells) stimulate

–Answer seg- mentation

• inadequate colonic water absorption results in

–Answer diarrhea

• which is NOT a function of the normal bacterial flora of the colon?

–Answer hydrol- ysis of proteins to supply amino acids

• which hormone promotes the opening of the ileocecal valve, allowing chyme to move

though the large intestine –Answer gastrin

• which of the following enzymes is specific for protein digestion?

–Answer trypsin

• most water absorption occurs in the

–Answer small intestine

• the primary function of carbohydrates is to

–Answer maintain energy production within the cells

• cholesterol, while it is not an energy molecule, has importance in the body because

–Answer it is an important component of plasma membranes and is used to make hormones

• the energy cost of amino acid absorption by using Na+ co-transport is paid by

–Answer 2 / 3

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pumping Na+ out of the cell by using active transport

• it is important to ensure that your diet is adequately rich in vitamins because

–Answer most vitamins are coenzymes needed for normal metabolism

• glycolysis is best defined as the

–Answer the catabolic reaction based upon the conversion of glucose into two molecules of pyruvic acid

• gluconeogenesis is the process in which

–Answer glucose is formed from non carbo- hydrate precursors

• deamination of amino acids takes place in the

–Answer liver

• when carbohydrates are consumed, they may be used to produce ATP. if excess

carbohydrates are consumed they are –Answer converted to triglycerides

• transamination, oxidative deamination, and keto acid modication all occur in the

–Answer liver

• which is NOT a function of cholesterol?

–Answer used for energy

• it is thought that high levels of increase heart attack risks

–Answer LDL's

• Which of the following nutrients yield the highest amount of energy per gram when

metabolized?–Answer fats

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