Reference no: EM1393344

1. Enzymes are ________ (a macromolecule).
a. carbohydrates
b. proteins
c. DNA
d. lipids
2. What is the function (the job) of enzymes in digestion?
a. they breakdown food into small particles.
b. they breakdown carbohydrates in the mouth.
c. they breakdown proteins in the stomach.
d. they breakdown macromolecules in the small intestine.
3. Which of the following is NOT part of the gastrointestinal (GI) tract?
a. mouth
b. pancreas
c. small intestine
d. esophagus
e. stomach
4. An accessory organ is...
a. an organ that does not have a critical function
b. an organ that is involved in digestion, but not part of the gastrointestinal tract
c. any organ that is part of the gastrointestinal tract
5. Mechanical and chemical digestion begin in the mouth.
a. true
b. false
6. Enzymes in the mouth begin the digestion of ___________ (a macromolecule).
a. carbohydrates
b. lipids
c. proteins
d. all of the above
7. Tooth enamel is the hardest substance in your body.
a. true
b. false
8. Food digestion is completed in the stomach.
a. true
b. false
9. Which of the following is a function of the liver?
a. regulation of blood sugar levels
b. production of bile
c. detoxification of byproducts
d. recycling of some components of red blood cells
e. all of the above
10. Bile is important in the breakdown of __________ (a macromolecule).
a. lipids
b. proteins
c. carbohydrates
d. all of the above
11. Nutrients from the food we eat must be absorbed into the bloodstream so that they can be delivered to various parts of the body. Most of this absorption takes place in the __________.
a. small intestine
b. liver
c. pancreas
d. stomach
12. The bacterium helicobacter pylori is the most common cause of what condition?
a. acid reflux
b. food poisoning
c. cavities
d. stomach ulcers
13. At least four hormones influence hunger and appetite. These hormones are all __________ (a macromolecule).
a. nucleic acids
b. proteins
c. carbohydrates
d. lipids