WGU D440 Chapter 3 Problem set Exam Questions with all
answers Correctly provided Latest 2026/2027
The last portion, or segment, of the small intestine is called the ____________.
ileum
The specialized structure of the villi allows for efficient absorption of digested nutrients,
which are then transported throughout the body. Review the accompanying figure and
label the fields accordingly.
Elizabeth is seated with her friend at her favorite restaurant. It's the first time she has
eaten out after beginning her new diet. She wants to be sure to choose gluten-free
items from the menu. She orders sparkling water with lemon and the grilled salmon with
sautéed kale and mushrooms. The waiter reminds her that she can choose one more
side dish.
Which of the following side dishes is gluten-free and, therefore, safe for Elizabeth to
eat?
baked potato with a small dollop of sour cream
Nutrients are transported, absorbed, and excreted via a variety of mechanisms
throughout the body. This section will discuss these systems.
Match the words in the left column to the appropriate blanks in the sentences on the
right.
A process called _________ helps to propel first the bolus and then chyme forward
through the esophagus, stomach, and small intestine.
peristalsis
,Nutrients are absorbed through the lining of the small intestine via a variety of
mechanisms. Most nutrients require _______, where a specific carrier protein is utilized,
but no energy is required.
facilitated diffusion
Some smaller molecules can cross via _________. Like with facilitated diffusion, no
energy is required because the concentration of a nutrient is higher inside the GI tract
than in the enterocyte. Unlike with facilitated diffusion, however, no ________ is
needed.
passive diffusion, carrier protein
Nutrients like glucose and amino acids are absorbed through _______, which requires
both a carrier protein and energy in the form of ATP.
active transport
A fourth method is called _____, which involves a vesicle that forms from the
enterocyte's cell membrane, engulfing the nutrient and then drawing the nutrient into the
cell.
endocytosis
Once absorbed, water-soluble nutrients like carbohydrates and amino acids enter
capillaries and travel to the liver via the ___________.
hepatic portal vein
, Fat-soluble nutrients initially travel via the _________ before entering the bloodstream.
lymphatic system
The gastrointestinal (GI) tract is essentially a long muscular tube that starts in the
mouth, continues through the pharynx, esophagus, stomach, small intestine, and large
intestine, and ends in the rectum. Each site functions in different ways to complete
mechanical digestion, chemical digestion, absorption, and elimination. Accessory
organs like the salivary glands, liver, gallbladder, and pancreas produce digestive
secretions that act on specific nutrients and assist with digestion.
Drag the appropriate items into their respective bins.
see pic
Image: The gastrointestinal (GI) tract is essentially a long muscular tube that starts in
the mouth, continues through the pharynx, esophagus, stomach, small intestine, and
large intestine, and ends in the rectum. Each site functions in different ways to complete
mechanical digestion, chemical digestion, absorption, and elimination. Accessory
organs like the salivary glands, liver, gallbladder, and pancreas produce digestive
secretions that act on specific nutrients and assist with digestion.
Drag the appropriate items into their respective bins.
Digestive problems can occur at nearly any point in the digestive process. Some
problems are minor, like occasional heartburn, indigestion, or constipation. However,
other problems like ulcers or cancer can be very serious. Medical treatment may also be
required if a minor problem occurs persistently. Fortunately, there are also many dietary
approaches that can help manage many digestive disorders. One condition that can be
managed through diet is celiac disease, a serious autoimmune disease that causes
damage to the small intestines when gluten is consumed.
answers Correctly provided Latest 2026/2027
The last portion, or segment, of the small intestine is called the ____________.
ileum
The specialized structure of the villi allows for efficient absorption of digested nutrients,
which are then transported throughout the body. Review the accompanying figure and
label the fields accordingly.
Elizabeth is seated with her friend at her favorite restaurant. It's the first time she has
eaten out after beginning her new diet. She wants to be sure to choose gluten-free
items from the menu. She orders sparkling water with lemon and the grilled salmon with
sautéed kale and mushrooms. The waiter reminds her that she can choose one more
side dish.
Which of the following side dishes is gluten-free and, therefore, safe for Elizabeth to
eat?
baked potato with a small dollop of sour cream
Nutrients are transported, absorbed, and excreted via a variety of mechanisms
throughout the body. This section will discuss these systems.
Match the words in the left column to the appropriate blanks in the sentences on the
right.
A process called _________ helps to propel first the bolus and then chyme forward
through the esophagus, stomach, and small intestine.
peristalsis
,Nutrients are absorbed through the lining of the small intestine via a variety of
mechanisms. Most nutrients require _______, where a specific carrier protein is utilized,
but no energy is required.
facilitated diffusion
Some smaller molecules can cross via _________. Like with facilitated diffusion, no
energy is required because the concentration of a nutrient is higher inside the GI tract
than in the enterocyte. Unlike with facilitated diffusion, however, no ________ is
needed.
passive diffusion, carrier protein
Nutrients like glucose and amino acids are absorbed through _______, which requires
both a carrier protein and energy in the form of ATP.
active transport
A fourth method is called _____, which involves a vesicle that forms from the
enterocyte's cell membrane, engulfing the nutrient and then drawing the nutrient into the
cell.
endocytosis
Once absorbed, water-soluble nutrients like carbohydrates and amino acids enter
capillaries and travel to the liver via the ___________.
hepatic portal vein
, Fat-soluble nutrients initially travel via the _________ before entering the bloodstream.
lymphatic system
The gastrointestinal (GI) tract is essentially a long muscular tube that starts in the
mouth, continues through the pharynx, esophagus, stomach, small intestine, and large
intestine, and ends in the rectum. Each site functions in different ways to complete
mechanical digestion, chemical digestion, absorption, and elimination. Accessory
organs like the salivary glands, liver, gallbladder, and pancreas produce digestive
secretions that act on specific nutrients and assist with digestion.
Drag the appropriate items into their respective bins.
see pic
Image: The gastrointestinal (GI) tract is essentially a long muscular tube that starts in
the mouth, continues through the pharynx, esophagus, stomach, small intestine, and
large intestine, and ends in the rectum. Each site functions in different ways to complete
mechanical digestion, chemical digestion, absorption, and elimination. Accessory
organs like the salivary glands, liver, gallbladder, and pancreas produce digestive
secretions that act on specific nutrients and assist with digestion.
Drag the appropriate items into their respective bins.
Digestive problems can occur at nearly any point in the digestive process. Some
problems are minor, like occasional heartburn, indigestion, or constipation. However,
other problems like ulcers or cancer can be very serious. Medical treatment may also be
required if a minor problem occurs persistently. Fortunately, there are also many dietary
approaches that can help manage many digestive disorders. One condition that can be
managed through diet is celiac disease, a serious autoimmune disease that causes
damage to the small intestines when gluten is consumed.
