Question 1

Salivary glands are stimulated only by olfactory and visual stimuli.

Accepted Answer

A) True 
 B)False

Question 2

Cellulose is a residue of digestion that comes from:

Accepted Answer

A)  carbohydrates. 
B)  meat proteins. 
C)  undigested fats. 
D)  undigested connective tissue. 
A)  carbohydrates. 
B)  meat proteins. 
C)  undigested fats. 
D)  undigested connective tissue.

Question 3

Gastric inhibitory peptide and the enterogastric reflex have opposite effects on gastric peristalsis.

Accepted Answer

A) True 
 B)False

Question 4

Because acid would be harmful to enzymes, the salivary glands produce bicarbonate ions to lower the pH of saliva.

Accepted Answer

A) True 
 B)False

Question 5

Most enzymes catalyze a chemical reaction in both directions. Which is the best explanation of this statement?

Accepted Answer

A)  Chemical reaction in both directions means the direction and rate of the reaction is being governed by gravity; for example, food in the lower digestive tract is moved by peristalsis, whereas food in the upper part of the digestive tract is moved by segmentation. 
B)  Chemical reaction in both directions means that enzymes are both intracellular and extracellular, depending on whether they act within cells or outside them in the surrounding medium. 
C)  Chemical reaction in both directions means the direction and rate of the reaction is being governed by the rate law or law of mass action; for example, slowing of digestion when absorption is interfered with and the products of digestion accumulate. 
D)  Both B and C are accurate explanations. 
A)  Chemical reaction in both directions means the direction and rate of the reaction is being governed by gravity; for example, food in the lower digestive tract is moved by peristalsis, whereas food in the upper part of the digestive tract is moved by segmentation. 
B)  Chemical reaction in both directions means that enzymes are both intracellular and extracellular, depending on whether they act within cells or outside them in the surrounding medium. 
C)  Chemical reaction in both directions means the direction and rate of the reaction is being governed by the rate law or law of mass action; for example, slowing of digestion when absorption is interfered with and the products of digestion accumulate. 
D)  Both B and C are accurate explanations.

Question 6

Which of these is not an example of mechanical digestion?

Accepted Answer

A)  Moistening the food 
B)  Changing food from large to small particles 
C)  Propelling food through the digestive tract 
D)  All of the above are examples of mechanical digestion. 
A)  Moistening the food 
B)  Changing food from large to small particles 
C)  Propelling food through the digestive tract 
D)  All of the above are examples of mechanical digestion.

Question 7

Bile is involved in both secretion and excretion.

Accepted Answer

A) True 
 B)False

Question 8

Match each structure with its function, description, or the enzyme it produces.
-Gland that makes and secretes bile

Accepted Answer

A) Gallbladder 
B) Salivary gland 
C) Pancreas 
D) Stomach 
E) Small intestine
F)Liver 
A) Gallbladder 
B) Salivary gland 
C) Pancreas 
D) Stomach 
E) Small intestine
F)Liver

Question 9

Intestinal amylase is attached to the brush borders of the villi and function in a process called contact digestion.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is a disaccharide?

Accepted Answer

A)  Glucose 
B)  Starch 
C)  Sucrose 
D)  Glycogen 
A)  Glucose 
B)  Starch 
C)  Sucrose 
D)  Glycogen

Exam 40: Digestion and Absorption

Salivary glands are stimulated only by olfactory and visual stimuli.

Cellulose is a residue of digestion that comes from:

Gastric inhibitory peptide and the enterogastric reflex have opposite effects on gastric peristalsis.

Because acid would be harmful to enzymes, the salivary glands produce bicarbonate ions to lower the pH of saliva.

Most enzymes catalyze a chemical reaction in both directions. Which is the best explanation of this statement?

Which of these is not an example of mechanical digestion?

Bile is involved in both secretion and excretion.

Match each structure with its function, description, or the enzyme it produces. -Gland that makes and secretes bile

Intestinal amylase is attached to the brush borders of the villi and function in a process called contact digestion.

Which of the following is a disaccharide?

Organization of the Body

Homeostasis

Chemical Basis of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange & Transport

Upper Digestive Tract

Lower Digestive Tract

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid Base Balance

Male Reproductive System

Female Reproductive System

Growth and Development

Genetics and Heredity

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