1. Which of the following organ stores bile?
spleen
stomach
gallbladder
pancreas
small intestine


2. The small intestine is divided into the duodenum, jejunum, and ___.
sigmoid
fundus
ileum
pylorus
cecum


3. Mastication of food is an example of
ingestion.
secretion.
absorption.
chemical digestion.
mechanical digestion.

4. Which of the following is an accessory organ of the digestive system?
esophagus
stomach
cecum
pancreas
duodenum


5. The mucosa of the large intestine contains cells that absorb
monosaccharides.
triglycerides.
water.
amino acids.
disaccharides.

6. Which of the following is not a function of the large intestine?
mucus secretion
formation of feces
water absorption
bacterial fermentation
digestion of lipids by intestinal lipase



7. Secretion of saliva is controlled by
the uvula.
hormones from the tongue's papillae.
the autonomic nervous system.
the chemical composition of the foods eaten.


8. Which of the following includes all the components of gastric juice?
hydrochloric acid and pepsinogen
mucus and enzymes
mucus, intrinsic factor, hydrochloric acid, and pepsinogen
mucus, hydrochloric acid, and enzymes

9. The pancreatic acini
produce glucagon.
form the pancreatic duct.
constitute the exocrine portion of the pancreas.
are considered a type of endocrine gland.


10. Which small intestine enzyme and function is mismatched?
sucrase: digests sucrose into glucose and fructose
peptidase: digests proteins into amino acids
ribonuclease: digests DNA
lactase: digests lactose into glucose and galactose

Week 10


1. Which statement does NOT describe a mineral?
Minerals help regulate enzymatic reactions.
The mineral sodium is involved in the generation of nerve impulses.
Minerals are organic nutrients generally concentrated in the skeleton.
Minerals such as calcium, iron, and magnesium are part of some coenzymes.

2. Water-soluble vitamins
are absorbed from the digestive tract with dietary lipids.
are excreted in the urine if there are excessive quantities in the body.
tend to be stored in the liver.
include vitamins A, D, E, and K.

3. The function of proteins in lipoproteins is to
allow the lipids to be more readily catabolized.
convert lipids into triglycerides.
help the lipoproteins dissolve in body fluids.
alert the body to break down lipids for energy production.

4. During metabolism,
enzymes serve as catalysts to speed chemical reactions.
some enzymes require the presence of an ion such as calcium, iron, or zinc.
anabolic reactions use more energy than they produce.
All of these answer choices are correct.

5. The balance between heat production and heat loss is controlled by the
adrenal medulla.
liver.
kidneys.
hypothalamus.

6. Which of the following vitamins are not absorbed along with dietary lipids?
Vitamin A
Vitamin C
Vitamin D
Vitamin E
Vitamin K




7. The chemical breakdown of one glucose molecule into two pyruvic acid molecules is called ___.
lipolysis
glycolysis
ketogenesis
oxidative phosphorylation
glycogenolysis


8. The Krebs cycle occurs in this organelle.
nucleus
ribosome
endoplasmic recticulum
mitochondrion
Golgi complex

9. Which of the following is NOT a mechanism of heat loss?
propagation
radiation
conduction
convection
evaporation

10. Chemical reactions that break down complex organic compounds into simple ones are called catabolic reactions.
True
False