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Chapter 6 Quiz
Return to Animal Physiology 4e Student Resources
Chapter 6 Quiz
Quiz Content
*
not completed
.
In humans, which organ is responsible for the production of lactase?
Stomach
correct
incorrect
Small intestine
correct
incorrect
Pancreas
correct
incorrect
Liver
correct
incorrect
*
not completed
.
Five students participate in a new reality TV show. Their only food for a week is bread and milk. The _______ student is most likely to make it through the week without gastrointestinal distress.
African-American
correct
incorrect
Chinese-American
correct
incorrect
Italian
correct
incorrect
Danish
correct
incorrect
*
not completed
.
Proteins are important for all
except
regulating biochemical reactions.
correct
incorrect
storing genetic information.
correct
incorrect
determining structural properties of tissues.
correct
incorrect
transporting oxygen.
correct
incorrect
*
not completed
.
Saturated fatty acids are generally bad for human health. Based on the standard symbols describing fatty acids, which fatty acid is probably most detrimental?
16.0
correct
incorrect
18.1
correct
incorrect
18.3
correct
incorrect
22.6
correct
incorrect
*
not completed
.
Flying is energetically expensive, and the energetic cost of flying increases with increasing weight. For a bird flying across the Gulf of Mexico, which substance would be the most efficient energy storage compound?
Proteins
correct
incorrect
Carbohydrates
correct
incorrect
Lipids
correct
incorrect
Essential amino acids
correct
incorrect
*
not completed
.
Which type of chemical compound contains common molecules that many animals
cannot
digest?
Proteins
correct
incorrect
Carbohydrates
correct
incorrect
Lipids
correct
incorrect
Fatty acids
correct
incorrect
*
not completed
.
Compared to zebras, wildebeests have an exceptionally blunt muzzle and a wide row of incisors. This makes them more effective than zebras at feeding on
short grasses.
correct
incorrect
shrubs.
correct
incorrect
sedges.
correct
incorrect
grasshoppers found on grass leaves.
correct
incorrect
*
not completed
.
In clupeid fish with specialized gill rakers, as ingested water moves from the mouth toward the throat, the
gill rakers function like a sieve.
correct
incorrect
concentration of food particles increases.
correct
incorrect
food particles are concentrated by water flowing in from the gill.
correct
incorrect
baleen captures the suspended food.
correct
incorrect
*
not completed
.
Coral bleaching refers to
loss of algal symbionts along with chlorophyll and other algal pigments.
correct
incorrect
treatment of corals reefs with bleach to kill parasites.
correct
incorrect
conversion of algal symbionts from photosynthesis to chemosynthesis.
correct
incorrect
loss of external coral coloration when coral is eaten by reef fish.
correct
incorrect
*
not completed
.
In hydrothermal vent communities, a major source of energy is
sunlight.
correct
incorrect
oxidation of H
2
S to SO
4
2
–
.
correct
incorrect
calcium carbonate.
correct
incorrect
phosphates.
correct
incorrect
*
not completed
.
You are asked to identify the gut microbes contributing to the three major enterotypes in humans. Which of the following would be the best way to accomplish this?
Sequence the proteins from a collective sample of the gut.
correct
incorrect
Sequence the DNA from a collective sample of the gut.
correct
incorrect
Electron microscopy
correct
incorrect
Direct culture of the microbes
correct
incorrect
*
not completed
.
The largest stomach chamber of a cow is the
cecum.
correct
incorrect
abomasum.
correct
incorrect
omasum.
correct
incorrect
rumen.
correct
incorrect
*
not completed
.
Without symbioses, _______ can intrinsically produce the enzymes necessary to digest cellulose.
Some ruminants
correct
incorrect
All invertebrates
correct
incorrect
Some invertebrates
correct
incorrect
All termites
correct
incorrect
*
not completed
.
In vertebrates, the principal site of absorption is the
foregut.
correct
incorrect
biliary system.
correct
incorrect
hindgut.
correct
incorrect
midgut.
correct
incorrect
*
not completed
.
Which structure plays a crucial role in emulsifying lipids?
Pancreas
correct
incorrect
Foregut
correct
incorrect
Midgut
correct
incorrect
Biliary system
correct
incorrect
*
not completed
.
Which animal is most different from the others in terms of how food is moved through the digestive system?
Baleen whales
correct
incorrect
Crustacean
correct
incorrect
Oyster
correct
incorrect
Insects
correct
incorrect
*
not completed
.
Suppose an animal is fed a diet in which the only carbohydrate is glycogen. All of the animal's enzymes for digesting carbohydrates are disaccharidases. What percentage of the glycogen can it digest?
0%
correct
incorrect
50%
correct
incorrect
80–90%
correct
incorrect
100%
correct
incorrect
*
not completed
.
Inward diffusion of _______ drives the cotransport of glucose and galactose across the apical membrane of epithelial cells in the vertebrate midgut.
ATP
correct
incorrect
K
+
correct
incorrect
Na
+
correct
incorrect
H
2
O
correct
incorrect
*
not completed
.
The transport of nutrients across the gut epithelium that relies on metabolically generated electrochemical gradients of inorganic ions is called
secondary active transport.
correct
incorrect
electrochemical drive.
correct
incorrect
facilitated diffusion.
correct
incorrect
facilitated active transport.
correct
incorrect
*
not completed
.
Lipids are solubilized in the gut lumen by
chylomicrons.
correct
incorrect
micelles.
correct
incorrect
bile salts.
correct
incorrect
GLUT2.
correct
incorrect
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