Chapter 47 – The Digestive System
26. Place the processes occurring in the digestive tract in the correct order.
I-Peristaltic waves of contraction propel the food along the esophagus.
II-Gastric juices are secreted with the arrival of food into the duodenum.
III-The acidic chyme is transferred through the pyloric sphincter.
IV-HCl and pepsin begin digestion of proteins into shorter polypeptides.
Chapter 47 – The Digestive System
47–22
27. A baby is born without the ability to make chief cells. What would be the best type of diet
for this baby?
Clarify Question
•
What is the key concept addressed by the question?
o The question asks about the function of chief cells.
•
What type of thinking is required?
Gather Content
•
What do you know about the function of chief cells? What other information is related to
the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
28. In humans, the surface area of the small intestine is
29. The pancreas is an important accessory organ of the digestive system because it adds all
of the following substances to the small intestine except
30. Deficiencies of brush border enzymes in the small intestine would NOT affect the
complete digestion of __________.
Chapter 47 – The Digestive System
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you know about enzymes found on the brush border? What other information is
related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
31. Bicarbonate that neutralizes stomach acid is produced by the
32. Three-year old Ben’s parents are ecstatic because he is now using the potty each time he
needs to defecate. What muscle has Ben learned to control?
Chapter 47 – The Digestive System
Clarify Question
•
What is the key concept addressed by the question?
o The question asks about the voluntary control of defecation.
•
What type of thinking is required?
Gather Content
•
What do you know about the voluntary control of defecation? What other information is
related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
33. An ambulance is rushing a man to the emergency room with a knife wound. The man
was stabbed in the upper-right side of his abdomen and has a large amount of internal
bleeding. What vital organ has most likely been damaged by the knife wound?
Chapter 47 – The Digestive System
Clarify Question
•
What is the key concept addressed by the question?
a lot of blood flow.
•
What type of thinking is required?
Gather Content
•
What do you know about which organ is in the upper right side of the abdomen and has
a lot of blood flow? What other information is related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
47–29
34. The number of chylomicrons in lymphatic capillaries of the intestine would be increased
by eating _____ .
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you know about what chylomicrons contain? What other information is related
to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
35. Out of the estimated total of 9 liters of material passing through the small intestine, how
much of it is absorbed in the small intestine?
36. The arrival of fat-rich chyme to the duodenum stimulates the gall bladder to contract and
release _________ into the small intestine.
Chapter 47 – The Digestive System
37. Since the hepatic portal vein empties into the liver, it is able to control the amount of
_________ in the blood.
38. The liver removes excess glucose from the blood and converts it into _______.
39. What is NOT true about the human large intestine?
Chapter 47 – The Digestive System
47–32
40. The secretion of pepsinogen and HCl is controlled by the hormone
41. A new mammal has been discovered in the thickly-forested mountains of Papua New
Guinea. The squirrel-like animal lives in the canopy of the forest and has a diet rich in leaves.
On occasion, however, the animal drops to the ground to quickly fill its cheeks with its own
fecal droppings, for ingestion once it is safely back in the trees. The GI tract of this animal
would most likely include ____________.
Chapter 47 – The Digestive System
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you know about the intestinal tract of an animal that performs coprophagy?
What other information is related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
47–34
42. Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside
in their guts. To study the effects of these relationships in more detail, research organisms
such as fish and mice have been raised under germ-free conditions. What important process
do you predict is compromised in germ-free mice?
Clarify Question
•
What is the key concept addressed by the question?
o The question asks about essential nutrients can be made by bacteria in the intestines.
•
What type of thinking is required?
Gather Content
•
What do you know about essential nutrients can be made by bacteria in the intestines?
What other information is related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
43. In what way are vitamins and essential amino acids similar in human metabolism?
44. A patient with advanced colon cancer just had most of his large intestine removed. What
process will be most reduced in this patient as compared to a healthy person?
Chapter 47 – The Digestive System
47–36
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you know about the function of the large intestine? What other information is
related to the question?
Choose Answer
•
Given what you now know, what information is most likely to produce the correct
answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 47 – The Digestive System
45. Which of the following represents the correct order of vertebrate gastrointestinal tract
layers, going from outside the tract to inside the tract?
46. Which of the following represents the correct order of adult human teeth, beginning at the
front and moving right along the bottom jaw?
47. In the human digestive system, the stomach produces about 2 liters of HCl and other
gastric secretions every day. The acid secretion of the stomach