NDFS 100 Richards Exam 2 BYU.
Questions & Correct Verified Answers.
Latest Edition 2025-2026. Graded A
Characterize foods in terms of protein amount and quality. - ANS We need
to combine different protein types.
High quality proteins provide enough of all of the essential amino acids.
Quality is influenced by amino acid composition and digestibility.
High quality = fish, meat, diary
Mid-range quality = legumes, black beans, nuts, soy
Low quality = grains
Very low quality = veggies, fruits
Describe how celiac disease is diagnosed. - ANSThrough a blood test and
intestinal biopsy (not on the basis of symptoms).
Describe lipid absorption in the body. - ANS1. glycerol and short-chain fatty
acids travel in the bloodstream unassisted
1
, 2. monoglycerides and long-chain fatty acids are combined with protein to
form chylomicrons that travel through the lymphatic system before reaching
the bloodstream
Describe lipid digestion in the body. - ANS1. Mouth (in infants an enzyme
digests the milk fat)
2. Stomach = nothing really happens, fat rises to the top and leaves last;
sends signal to gallbladder to release bile
3. Small intestine = bile from gallbladder starts emulsifying; enzymes break
fat into absorbable pieces (free fatty acids, glycerol, monoglycerides); bile
shuttles the lipids to absorptive surfaces on cell of the intestine villli who
then extract the lipids
Describe lipid transportation in the body. - ANS1. chylomicrons
2. VLDL (very low-density lipoprotein)
3. LDL (low-density lipoprotein)4
4. HDL (high-density lipoprotein)
Describe protein digestion, absorption, and metabolism. - ANS1. stomach =
hydrochloric acid denatures protein strands; enzyme breaks down amino
acid strands into polypeptides and amino acids
2. small intestine = pancreas and intestinal enzymes split polypetides into
tripe-tides, dipeptides, and amino acids; enzymes on surfaces and w/in
absorptive cells split tripeptides and dipeptides; intestinal cells absorb and
transfer amino acids to the bloodstream
2
Questions & Correct Verified Answers.
Latest Edition 2025-2026. Graded A
Characterize foods in terms of protein amount and quality. - ANS We need
to combine different protein types.
High quality proteins provide enough of all of the essential amino acids.
Quality is influenced by amino acid composition and digestibility.
High quality = fish, meat, diary
Mid-range quality = legumes, black beans, nuts, soy
Low quality = grains
Very low quality = veggies, fruits
Describe how celiac disease is diagnosed. - ANSThrough a blood test and
intestinal biopsy (not on the basis of symptoms).
Describe lipid absorption in the body. - ANS1. glycerol and short-chain fatty
acids travel in the bloodstream unassisted
1
, 2. monoglycerides and long-chain fatty acids are combined with protein to
form chylomicrons that travel through the lymphatic system before reaching
the bloodstream
Describe lipid digestion in the body. - ANS1. Mouth (in infants an enzyme
digests the milk fat)
2. Stomach = nothing really happens, fat rises to the top and leaves last;
sends signal to gallbladder to release bile
3. Small intestine = bile from gallbladder starts emulsifying; enzymes break
fat into absorbable pieces (free fatty acids, glycerol, monoglycerides); bile
shuttles the lipids to absorptive surfaces on cell of the intestine villli who
then extract the lipids
Describe lipid transportation in the body. - ANS1. chylomicrons
2. VLDL (very low-density lipoprotein)
3. LDL (low-density lipoprotein)4
4. HDL (high-density lipoprotein)
Describe protein digestion, absorption, and metabolism. - ANS1. stomach =
hydrochloric acid denatures protein strands; enzyme breaks down amino
acid strands into polypeptides and amino acids
2. small intestine = pancreas and intestinal enzymes split polypetides into
tripe-tides, dipeptides, and amino acids; enzymes on surfaces and w/in
absorptive cells split tripeptides and dipeptides; intestinal cells absorb and
transfer amino acids to the bloodstream
2
