Question 1

The only treatment for celiac disease is a strict, lifelong gluten- free diet.

Accepted Answer

A) True 
 B)False  True

Question 2

How are nutrients absorbed?

Accepted Answer

Nutrients move across cell membranes in the small intestine via one of four mechanisms: passive diffusion, facilitated diffusion, active transport, or endocytosis. In passive diffusion, nutrients pass through the cell membrane. In facilitated diffusion, a specific carrier is required but no energy is needed to cross the membrane. In active transport, both a carrier protein and energy to cross the cell membrane. In endocytosis, whole molecules are engulfed by the cell membrane.

Question 3

Twelve- year old Pierre has been diagnosed with gluten sensitivity so he needs to avoid foods which have either the GFCO or the CSA Seal of Recognition.

Accepted Answer

A) True 
 B)False  False

Question 4

The villi and microvilli are the site of nutrient

Accepted Answer

A)  excretion. 
B)  absorption. 
C)  digestion. 
D)  elimination. 
A)  excretion. 
B)  absorption. 
C)  digestion. 
D)  elimination.

Question 5

In the small intestine,__________ contractions squeeze chyme forward, and digestive secretions from the pancreas, gallbladder, and intestinal lining chemically break down the nutrients.

Accepted Answer

A)  muscular 
B)  autonomic 
C)  automatic 
D)  sphincter 
A)  muscular 
B)  autonomic 
C)  automatic 
D)  sphincter

Question 6

When the food you eat reaches your stomach, endocrine glands release gastric hormones to signal the rest of the GI tract to prepare for digestion.

Accepted Answer

A) True 
 B)False

Question 7

The sequence of food processing in the gut is

Accepted Answer

A)  bolus, tongue, epiglottis, trachea, esophagus. 
B)  digestion, mastication, absorption, excretion. 
C)  mouth, pharynx, esophagus, stomach, large intestine, small intestine. 
D)  mastication, digestion, absorption, excretion. 
A)  bolus, tongue, epiglottis, trachea, esophagus. 
B)  digestion, mastication, absorption, excretion. 
C)  mouth, pharynx, esophagus, stomach, large intestine, small intestine. 
D)  mastication, digestion, absorption, excretion.

Question 8

Digestion, absorption, and elimination occur in the

Accepted Answer

A)  lumen. 
B)  sphincters. 
C)  gastrointestinal tract. 
D)  nervous system. 
A)  lumen. 
B)  sphincters. 
C)  gastrointestinal tract. 
D)  nervous system.

Question 9

Saliva, gastric juices, bile, and bicarbonate contribute to the optimal environment for absorption to occur.

Accepted Answer

A) True 
 B)False

Question 10

Each__________contains capillaries and a lacteal for picking up nutrients absorbed through the enterocytes and transporting them throughout the body.

Accepted Answer

A)  parietal and chief cell 
B)  bolus 
C)  villus 
D)  GFCO cell 
A)  parietal and chief cell 
B)  bolus 
C)  villus 
D)  GFCO cell

Question 11

Which factors lead to constipation?

Accepted Answer

Inadequate fiber and water int

Question 12

The lymphatic system filters the blood and eliminates waste.

Accepted Answer

A) True 
 B)False

Question 13

__________occurs when the longitudinal, circular, and diagonal muscles that surround the organ forcefully push, churn, and mix the contents of the stomach with the gastric juices.

Accepted Answer

A)  Chemical digestion 
B)  Elimination 
C)  Mechanical digestion 
D)  Excretion 
A)  Chemical digestion 
B)  Elimination 
C)  Mechanical digestion 
D)  Excretion

Question 14

Ghrelin and peptide YY communicate with the brain to help you decide when to eat and when to stop eating.

Accepted Answer

A) True 
 B)False

Question 15

The chemical and mechanical processes by which the body breaks food down into individual nutrient molecules

Accepted Answer

A)  mastication. 
B)  digestion. 
C)  absorption. 
D)  chewing. 
A)  mastication. 
B)  digestion. 
C)  absorption. 
D)  chewing.

Question 16

__________are the hair like projections that form the brush border through which nutrients are absorbed

Accepted Answer

A)  Enterocyte 
B)  Micro 
C)  Villi 
D)  Microvilli 
A)  Enterocyte 
B)  Micro 
C)  Villi 
D)  Microvilli

Question 17

What is hydrolysis?

Accepted Answer

Hydrolysis is the process by which water

Question 18

The functions of __________are to dissolve small food particles, which allows them to react with the taste buds so we can savor food and to moisten and bind food to lubricate it for comfortable swallowing.

Accepted Answer

A)  saliva 
B)  mucus 
C)  gastric juices 
D)  chyme 
A)  saliva 
B)  mucus 
C)  gastric juices 
D)  chyme

Question 19

Coffee flavorings or creamers need to be avoided by persons who wish to avoid gluten.

Accepted Answer

A) True 
 B)False

Question 20

How are probiotics different to prebiotics?

Accepted Answer

Probiotics are the 10 trillion live bene

Exam 3: Digestion, Absorption, and Transport

The only treatment for celiac disease is a strict, lifelong gluten- free diet.

How are nutrients absorbed?

Twelve- year old Pierre has been diagnosed with gluten sensitivity so he needs to avoid foods which have either the GFCO or the CSA Seal of Recognition.

The villi and microvilli are the site of nutrient

In the small intestine,__________ contractions squeeze chyme forward, and digestive secretions from the pancreas, gallbladder, and intestinal lining chemically break down the nutrients.

When the food you eat reaches your stomach, endocrine glands release gastric hormones to signal the rest of the GI tract to prepare for digestion.

The sequence of food processing in the gut is

Digestion, absorption, and elimination occur in the

Saliva, gastric juices, bile, and bicarbonate contribute to the optimal environment for absorption to occur.

Each__________contains capillaries and a lacteal for picking up nutrients absorbed through the enterocytes and transporting them throughout the body.

Which factors lead to constipation?

The lymphatic system filters the blood and eliminates waste.

__________occurs when the longitudinal, circular, and diagonal muscles that surround the organ forcefully push, churn, and mix the contents of the stomach with the gastric juices.

Ghrelin and peptide YY communicate with the brain to help you decide when to eat and when to stop eating.

The chemical and mechanical processes by which the body breaks food down into individual nutrient molecules

__________are the hair like projections that form the brush border through which nutrients are absorbed

What is hydrolysis?

The functions of __________are to dissolve small food particles, which allows them to react with the taste buds so we can savor food and to moisten and bind food to lubricate it for comfortable swallowing.

Coffee flavorings or creamers need to be avoided by persons who wish to avoid gluten.

How are probiotics different to prebiotics?

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