Unit 3: 1 & 2 Quiz Questions

Question 1

Peptide hormones are _
- lipids.
- chemically related to cholesterol.
- derived from the amino acid tyrosine.
- produced by the adrenal glands.
- composed of amino acids.

Answer 1

composed of amino acids.

Question 2

All of the following are true of steroid hormones EXCEPT that they _
- bind to receptors within the cell.
- are derived from cholesterol.
- are produced by reproductive glands.
- are produced by the adrenal medulla.
- are lipids.

Answer 2

are produced by the adrenal medulla.

Question 3

The main action of antidiuretic hormone is _
- increase urine output to remove excess fluid.
- to stimulate kidney cells to secrete renin.
- increased water conservation by kidneys.
- increased blood pressure by increased Na+
- reabsorption.
- inhibition of aldosterone

Answer 3

increased water conservation by kidneys.

Question 4

Liver cells respond to growth hormone by releasing hormones called _
- prostaglandins.
- hepatic hormones.
- glucocorticoids.
- somatomedins.
- gonadotrophins

Answer 4

somatomedins.

Question 5

The pituitary hormone that promotes ovarian secretion of progesterone and testicular secretion of testosterone is _
- ACTH.
- GH.
- FSH.
- LH.
- TSH.

Answer 5

LH.

Question 6

Which of the following elements is necessary for the production of thyroid hormone?
- colloid
- iodine
- iron
- sodium
- potassium

Answer 6

iodine

Question 7

Thyroid hormone may increase cellular ATP production by binding to _
- the outer surface of the plasma membrane.
- the cytoplasm.
- the inner surface of the plasma membrane.
- the vesicles.
- the mitochondria.

Answer 7

the mitochondria.

Question 8

The parathyroid glands produce a hormone that _
- stimulates the formation of white blood cells.
- increases the level of potassium ions in the blood.
- increases the level of sodium ions in the blood.
- increases the level of glucose in the blood.
- increases the level of calcium ions in the blood.

Answer 8

increases the level of calcium ions in the blood.

Question 9

Reduction of fluid losses at the kidneys due to the retention of Na+ is the action of _
- oxytocin.
- aldosterone.
- antidiuretic hormone.
- cortisone.
- calcitonin.

Answer 9

aldosterone.

Question 10

In persons with untreated diabetes mellitus all of the following are true, EXCEPT _
- intracellular and tissue levels of glucose is very high.
- a large excretion of urine occurs.
- blood glucose levels are very high.
- glucose is present in the urine in large amounts.
- excessive thirst is shown.

Answer 10

intracellular and tissue levels of glucose is very high.

Question 11

Large blood vessels and lymphatics are found in the _
- mucosa.
- muscularis.
- adventitia.
- submucosa.
- serosa.

Answer 11

submucosa.

Question 12

The functions of the oral cavity include all of the following EXCEPT _
- absorption of monosaccharides.
- digestion of carbohydrates.
- sensory analysis of material before swallowing.
- lubrication.
- mechanical processing of food.

Answer 12

absorption of monosaccharides.

Question 13

In most cases, the mumps is a viral infection of the ________ glands.
- lingual
- mandibular
- submandibular
- parotid
- sublingual

Answer 13

parotid

Question 14

During deglutition, which of the following phases is first?
- gastric
- buccal
- esophageal
- pharyngeal
- enteric

Answer 14

buccal

Question 15

Match the gastric phase on the left (1-3) with the correct description on the right (4-6):

1. intestinal phase 4. prepares stomach for arrival of food
2. gastric phase 5. stomach empties and decreases secretions
3. cephalic phase 6. stomach secretes juice and mixes food into chyme

• 1 and 6; 2 and 4; 3 and 5
• 1 and 5; 2 and 4; 3 and 6
• 1 and 4; 2 and 5; 3 and 6
• 1 and 6; 2 and 5; 3 and 4
• 1 and 5; 2 and 6; 3 and 4

Answer 15

1 and 5; 2 and 6; 3 and 4

Question 16

A drug that blocks the action of carbonic anhydrase in parietal cells would result in _
- increased protein digestion in the stomach.
- decreased gastrin production.
- a higher pH during gastric digestion.
- decreased production of pepsinogen by chief cells.
- a lower pH during gastric digestion.

Answer 16

a higher pH during gastric digestion.

Question 17

Tom has hepatitis, an inflammation of the liver. Which of the following symptoms would you expect to observe in Tom?
- blood in the feces
- elevated levels of blood glucose
- jaundice
- overproduction of blood plasma albumin
- impaired digestion of protein

Answer 17

jaundice

Question 18

A drug that blocks the action of the hormone cholecystokinin would affect all of the following EXCEPT _
- relaxation of the hepatopancreatic sphincter.
- absorption of water in the large intestines.
- the composition of pancreatic secretions.
- the delivery of bile.
- digestion of lipids and proteins.

Answer 18

absorption of water in the large intestines.

Question 19

Brush border enzymes are found in the _
- rugae.
- villi.
- circular folds.
- microvilli.
- plicae circularis.

Answer 19

microvilli.

Question 20

Products of fat digestion are transported initially by _
- the interstitial fluid.
- the arterioles.
- veins.
- lymphatic vessels.
- capillaries.

Answer 20

lymphatic vessels.