BCNS CNS EXAM -CERTIFIED NUTRITION
SPECIALIST |ACTUAL QUESTIONS AND VERIFIED
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Examples of dietary nutrients that are not absorbed directly into the enterohepatic portal
blood system include:
a. amino acids.
b. medium-chain fatty acids.
c. monosaccharides.
d. long-chain fatty acids.
CORRECT ANSWER
d. long-chain fatty acids They are still too big to be absorbed directly
Question 2
The hormone responsible for the decrease in gastrointestinal smooth muscle tone and
motility during pregnancy is:
a. estrogen.
b. progesterone.
c. placental lactogen.
d. human chorionic ghonadotropin.
CORRECT ANSWER
b. progesterone. "gest"=gestation. Progesterone, NOT estrogen, has been associated
with decreased contraction frequency and slow gastric emptying
1
,Question 3
The ingestion of a meal containing large amounts of saturated fat will result in a transient
increase in the serum concentration of:
a. chylomicrons.
b. low-density lipoproteins.
c. high-density lipoproteins.
d. micelles.
CORRECT ANSWER
a. chylomicrons. Chylomicrons are what lipids are repackaged
into so they can be transported.
Question 4
The product of enterokinase reactions is:
a. trypsin.
b. chymotrypsin.
c. pepsin.
d. carboxypeptidase.
CORRECT ANSWER
a. trypsin. enterokinase secreted by duodenal enterocytes
converts trypsinogen to trypsin. Enter=Trip
Question 5
Most iron is transported in the blood via the plasma carrier:
a. heme.
b. ferritin.
c. transferrin.
2
,d. albumin.
CORRECT ANSWER
c. transferrin. TRANS= transport Ferrin= Iron
Question 6
The organs most active in the synthesis of endogenous cholesterol are the liver
and the:
a. gallbladder.
b. pancreas.
c. adrenal glands.
d. intestinal mucosa.
CORRECT ANSWER
d. intestinal mucosa. The small intestine is where ingested fats are broken down into
smaller components, like cholesterol. Dietary cholesterol is transported from the small
intestine to the liver within chylomicrons.
Question 7
Lactulose is a carbohydrate that is:
a. absorbed in the small intestine.
b. absorbed in the large intestine.
c. a nonabsorbable laxative.
d. not found in the human diet.
CORRECT ANSWER
c. a nonabsorbable laxative. It is not absorbed nor broken down by human enzymes, it
stays in the digestive bolus, causing retention of water leading to softer, easier to pass
stool
3
, Question 8
Digested dietary protein is absorbed primarily in the:
a. stomach.
b. duodenum.
c. jejunum.
d. ileum.
CORRECT ANSWER
c. jejunum. Protein is absorbed in the middle of the small intestine. DJ-Ill
Question 9
Monosaccharides are transported across the placenta from the maternal circulation to the
fetal circulation by the process of:
a. simple diffusion.
b. facilitated diffusion.
c. active transport.
d. pinocytosis.
CORRECT ANSWER
b. facilitated diffusion. Most carbohydrates are transported
across biological membranes via facilitated diffusion.
Question 10
If a bolus containing 600 mOsm/L enters the jejunum, the net direction of fluid movement
in the intestinal tract will be:
a. from the intestinal lumen to the circulation.
b. from the circulation to the intestinal lumen.
4
SPECIALIST |ACTUAL QUESTIONS AND VERIFIED
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Examples of dietary nutrients that are not absorbed directly into the enterohepatic portal
blood system include:
a. amino acids.
b. medium-chain fatty acids.
c. monosaccharides.
d. long-chain fatty acids.
CORRECT ANSWER
d. long-chain fatty acids They are still too big to be absorbed directly
Question 2
The hormone responsible for the decrease in gastrointestinal smooth muscle tone and
motility during pregnancy is:
a. estrogen.
b. progesterone.
c. placental lactogen.
d. human chorionic ghonadotropin.
CORRECT ANSWER
b. progesterone. "gest"=gestation. Progesterone, NOT estrogen, has been associated
with decreased contraction frequency and slow gastric emptying
1
,Question 3
The ingestion of a meal containing large amounts of saturated fat will result in a transient
increase in the serum concentration of:
a. chylomicrons.
b. low-density lipoproteins.
c. high-density lipoproteins.
d. micelles.
CORRECT ANSWER
a. chylomicrons. Chylomicrons are what lipids are repackaged
into so they can be transported.
Question 4
The product of enterokinase reactions is:
a. trypsin.
b. chymotrypsin.
c. pepsin.
d. carboxypeptidase.
CORRECT ANSWER
a. trypsin. enterokinase secreted by duodenal enterocytes
converts trypsinogen to trypsin. Enter=Trip
Question 5
Most iron is transported in the blood via the plasma carrier:
a. heme.
b. ferritin.
c. transferrin.
2
,d. albumin.
CORRECT ANSWER
c. transferrin. TRANS= transport Ferrin= Iron
Question 6
The organs most active in the synthesis of endogenous cholesterol are the liver
and the:
a. gallbladder.
b. pancreas.
c. adrenal glands.
d. intestinal mucosa.
CORRECT ANSWER
d. intestinal mucosa. The small intestine is where ingested fats are broken down into
smaller components, like cholesterol. Dietary cholesterol is transported from the small
intestine to the liver within chylomicrons.
Question 7
Lactulose is a carbohydrate that is:
a. absorbed in the small intestine.
b. absorbed in the large intestine.
c. a nonabsorbable laxative.
d. not found in the human diet.
CORRECT ANSWER
c. a nonabsorbable laxative. It is not absorbed nor broken down by human enzymes, it
stays in the digestive bolus, causing retention of water leading to softer, easier to pass
stool
3
, Question 8
Digested dietary protein is absorbed primarily in the:
a. stomach.
b. duodenum.
c. jejunum.
d. ileum.
CORRECT ANSWER
c. jejunum. Protein is absorbed in the middle of the small intestine. DJ-Ill
Question 9
Monosaccharides are transported across the placenta from the maternal circulation to the
fetal circulation by the process of:
a. simple diffusion.
b. facilitated diffusion.
c. active transport.
d. pinocytosis.
CORRECT ANSWER
b. facilitated diffusion. Most carbohydrates are transported
across biological membranes via facilitated diffusion.
Question 10
If a bolus containing 600 mOsm/L enters the jejunum, the net direction of fluid movement
in the intestinal tract will be:
a. from the intestinal lumen to the circulation.
b. from the circulation to the intestinal lumen.
4
