Deck 5: Digestion Absorption and Metabolism

Question 1

A means of absorption that occurs in the small intestine is

A) exchange.
B) pinocytosis.
C) filtration.
D) electrochemical transport.

Answer 1

B
Simple diffusion.facilitated diffusion.active diffusion.and pinocytosis are the processes by which nutrients cross the inner intestinal wall and into the body's circulation.Pinocytosis is the penetration of larger materials that attach to the thicker cell membrane and are then engulfed by the cell.

Question 2

The process of digestion involves

A) thermal and chemical actions.
B) chemical and metabolic actions.
C) mechanical and chemical actions.
D) mechanical and thermal actions.

Answer 2

C
For nutrients to be delivered to the cells.food goes through a series of mechanical and chemical changes.

Question 3

After eating fried chicken.the resulting products from the digestion of fat include

A) glycerol and fatty acids.
B) glucose and fatty acids.
C) amino acids and dipeptides.
D) cholesterol and glycerol.

Answer 3

A
The resulting products of the digestion of fats are glycerol and fatty acids.Intestinal lipase splits fat into glycerides and fatty acids.

Question 4

The hormone that stimulates the pancreas to release its secretions is

A) gastrin.
B) enterogastrone.
C) cholecystokinin.
D) secretin.

Question 5

One type of movement in the small intestine is

A) mastication.
B) segmentation.
C) kinetic propulsion.
D) expulsion.

Question 6

Compared with the pH in the stomach.the pH in the small intestine is

A) lower.
B) higher.
C) the same.
D) neutral.

Question 7

The lining of the stomach and intestine is protected from strong acid by

A) pepsinogen.
B) bile.
C) mucus.
D) the presence of food.

Question 8

The primary nutritional function of the large intestine is the

A) absorption of fats.
B) absorption of water.
C) excretion of waste products.
D) completion of the digestive process.

Question 9

A child with phenylketonuria should avoid drinking

A) diet beverages sweetened with aspartame.
B) beverages sweetened with high-fructose corn syrup.
C) coffee and other caffeinated beverages.
D) fluoridated drinking water.

Question 10

After absorption.the end products of carbohydrate and protein digestion enter the

A) lacteal.
B) bile duct.
C) blood system.
D) bowel.

Question 11

The rhythmic contractions of the stomach and intestine that propel food along are called

A) segmentation.
B) peristalsis.
C) cardiospasm.
D) pendular movements.

Question 12

After digestion.fatty materials are absorbed into the

A) bloodstream.
B) outer skin.
C) colon.
D) lacteals.

Question 13

A meal consisting of country-fried steak.carrots.and a baked potato with butter and sour cream would stimulate the hormone cholecystokinin because of the

A) presence of food in the duodenum.
B) presence of fat in the duodenum.
C) entry of the acidic chyme into the duodenum.
D) entry of bile into the duodenum.

Question 14

A pizza slice is being consumed by a hungry teen.The first actions of biting.chewing.and breaking up the slice into smaller particles are called

A) peristalsis.
B) segmentation.
C) pendular movements.
D) mastication.

Question 15

An example of a gastric secretion is

A) intestinal lipase.
B) pancreatic amylase.
C) bile.
D) hydrochloric acid.

Question 16

Gas formation in the colon is the result of the

A) ingestion of certain foods.
B) ingestion of too much water.
C) inadequate ingestion of fiber.
D) bacterial action on undigested items.

Question 17

A food that is high in a macronutrient broken down by trypsin is

A) bread.
B) fruit.
C) margarine.
D) fish.

Question 18

A food that begins chemical digestion in the mouth is

A) chicken.
B) yogurt.
C) candy.
D) bread.

Question 19

After ingested food is mixed and churned with gastric secretions.the semifluid mass is called

A) chyle.
B) chyme.
C) renin.
D) bolus.

Question 20

The enzyme that would be most important for digesting a skinless chicken breast would be

A) sucrase.
B) lipase.
C) peptidase.
D) bile.

Question 21

The sum of all the chemical changes that an organism performs to maintain its life and produce energy is called

A) metabolism.
B) digestion.
C) absorption.
D) respiration.

Question 22

Ms.J.complains of gas and bloating along with abdominal pain.especially after drinking milk or eating ice cream or cheese.She may have

A) lactose intolerance.
B) phenylalanine intolerance.
C) a calcium deficiency.
D) a vitamin D deficiency.

Question 23

Which of the following foods would require peptidases to assist in its chemical digestion?

A) Chicken
B) A banana
C) Orange juice
D) Margarine

Question 24

Bile contains

A) hormones.
B) enzymes.
C) plasma.
D) emulsifiers.

Question 25

Dietary fiber is beneficial because it

A) is high in nutrients.
B) is readily digested.
C) adds bulk to feces.
D) absorbs excess nutrients.

Question 26

A beverage that may cause intestinal gas in adults is

A) milk.
B) coffee.
C) apple juice.
D) cola.

Question 27

Conversion of amino acids to glucose is called

A) metabolism.
B) glycogenosis.
C) gluconeogenesis.
D) catabolism.

Question 28

Ways to minimize formation of stomach gas include

A) avoiding caffeine.
B) chewing with your mouth open.
C) drinking liquids through a straw.
D) not gulping.

Question 29

The surface of the intestinal wall has mucosal folds.villi.and microvilli to

A) aid in peristalsis.
B) increase the surface area for absorption.
C) decrease the surface area for absorption.
D) increase the number of enzyme-secreting cells.

Question 30

Two organs that work with the small intestine in digestion are the

A) liver and kidneys.
B) stomach and large intestine.
C) pancreas and liver.
D) large intestine and colon.