Bios 256 Final Exam 3

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Bios 256 Final Exam 3

• Which involves movement of nutrients from food you have eaten from the gastrointestinal

tract to the blood or lymph?–Answer absorption

• Which is how food moves through the gastrointestinal tract by using peri- stalsis?

–Answer propulsion

• Which involves movement of indigestible solid wasters form the gastroin- testinal tract?

–Answer defecation

• The process of deglutition results in

–Answer swallowing

• Pepsinogen, an inactive digestive enzyme, is secreted by the

–Answer chief cells of the stomach

• Control of gastric secretion is provided by

–Answer both neural and hormonal mech- anisms

• The small intestine receives from the liver and gall bladder and

from the pancreas.–Answer bile, pancreatic juice

• Which is NOT a component of bile?

–Answer digestive enzymes 1 / 3

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• Which is an exocrine product of the pancreas?

–Answer bicarbonate

• Which hormone induces secretion of enzyme-rich pancreatic juice?

–Answer CCK (cholecystokinin)

• Bile production and secretion is promoted by

–Answer secretin

• Most chemical digestion and absorption occurs in the

–Answer small intestine

• Inadequate colonic water absorption results in

–Answer diarhea

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

–Answer hydrol- ysis of proteins to supply amino acids

• The stimulus that brings about the need for defecation is

–Answer distension of rectum

• You have just eaten a meal high in complex carbohydrates. Which of the following

enzymes will help to digest the meal?–Answer amylase

• The absorption of which ion is coupled to the absorption of glucose or amino acids?

–Answer Na+

• Digestion of table sugar requires

–Answer 2 / 3

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sucrase

• Dietary fats are important because

–Answer they help the body absorb fat-soluble vitamins

• Select the correct statement about proteins

–Answer Proteins will be used by most cells for ATP synthesis if insufficient carbohydrates are ingested.

• Vitamins are organic compounds. They

–Answer often function as coenzymes to as- sist in catalysis

• The primary function of cellular respiration is to

–Answer generate ATP, which traps some of the chemical energy of food molecules in its high-energy bonds

• Gluconeogenesis is the process in which

–Answer glucose is formed from noncarbo- hydrate molecules

• The process of breaking triglycerides down into glycerol and fatty acids is known as

–Answer lipolysis

• Which is NOT a function of cholesterol?

–Answer used for energy

• Triglycerides synthesized in hepatocytes are transported to adipocytes by

–Answer VLDL's

• Adipose tissue produces , sending an important satiety signal to your

hypothalamus, which controls your sense of hunger.–Answer leptin

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