NTR 454/554 Final Exam Questions With Complete
Solutions
____________ is a protein in milk that binds iron and
inhibits bacterial growth.
a. Lactoferrin
b. Lactose synthase
c. IgA
d. ethylene-diaminetetracetic acid (EDTA) Correct
Answers a. Lactoferrin
______________ is a protein in milk that binds iron
and inhibits bacterial growth. It is also involved in
bone formation and increases bone mineral
density.
a. Ethylene-diaminetetracetic acid
b. IgA
c. Lactoferrin
d. Lactose synthase Correct Answers c.
Lactoferrin
_______________ is the material received during the
first few milkings that is held back from the market
and fed to the calves.
a. Colostrum
b. Dilute milk
c. Areola
d. Sweet milk Correct Answers a. Colostrum
,(T/F) - Colostrum contains a higher concentration of
immunoglobulins than most later milk. Correct
Answers True
(T/F) - Cow's milk contains all of the essential
amino acids. Correct Answers True
(T/F) - During lactation, glucose, amino acids, fatty
acids, and minerals are extracted from the
bloodstream by the mammary gland. Correct
Answers True
(T/F) - Most of the fat in milk is surrounded by a
material that closely resembles cell membrane.
Correct Answers True
(T/F) - Pasteurization of donor human milk may
decrease bioactive factors such as lactoferrin and
lysozyme. Correct Answers True
(T/F) - Percent fat content of milk varies with
species. Correct Answers True
(T/F) - There is a greater abundance of whey
proteins in cow's milk than casein proteins.
Correct Answers False
(T/F) - Water is not a major component of milk.
Correct Answers False
,36. c. Secretory Vesicle Exocytosis
37. b. Lipid Synthesis and secretion
38. a. Eccrine Transport across the Apical
Membrane for water and ions.
39. e. Transcytosis of Interstitial Molecules
40. d. The Paracellular Pathway Correct Answers
Match the number in the diagram with the
corresponding pathway that it represents. (Slide
image left and right if your screen is too small.)
a. Eccrine Transport across the Apical Membrane
for water and ions.
b. Lipid Synthesis and secretion
c. Secretory Vesicle Exocytosis
d. The Paracellular Pathway
e. Transcytosis of Interstitial Molecules
36. Pathway I
37. Pathway II
38. Pathway III
39. Pathway IV
40. Pathway V
A carton of cows milk contains nutrients in ALL of
the following physical states EXCEPT:
a. suspended solids
b. covalently cross-linked protein gel
c. dissolved solids
, d. liquid Correct Answers b. covalently cross-
linked protein gel
A condition results from progressive destruction of
insulin producing B cells: Correct Answers type 1
diabetes and insulin dependent diabetes mellitus
(IDDM)
A condition that is characterized by insulin
resistance: Correct Answers type 2 diabetes and
non insulin dependent diabetes mellitus (NIDDM)
A major structural difference between the bovine
and human mammary glands is
a. the human gland does not have myoepitheilal
cells.
b. the human gland does not have ducts.
c. the human gland does not have alveoli.
d. the human gland does not have a gland cistern
Correct Answers d. the human gland does not
have a gland cistern
A protein in milk that binds iron and inhibits
bacterial growth and is also involved in bone
formation and increases bone mineral density is
____.
a.IgA
Solutions
____________ is a protein in milk that binds iron and
inhibits bacterial growth.
a. Lactoferrin
b. Lactose synthase
c. IgA
d. ethylene-diaminetetracetic acid (EDTA) Correct
Answers a. Lactoferrin
______________ is a protein in milk that binds iron
and inhibits bacterial growth. It is also involved in
bone formation and increases bone mineral
density.
a. Ethylene-diaminetetracetic acid
b. IgA
c. Lactoferrin
d. Lactose synthase Correct Answers c.
Lactoferrin
_______________ is the material received during the
first few milkings that is held back from the market
and fed to the calves.
a. Colostrum
b. Dilute milk
c. Areola
d. Sweet milk Correct Answers a. Colostrum
,(T/F) - Colostrum contains a higher concentration of
immunoglobulins than most later milk. Correct
Answers True
(T/F) - Cow's milk contains all of the essential
amino acids. Correct Answers True
(T/F) - During lactation, glucose, amino acids, fatty
acids, and minerals are extracted from the
bloodstream by the mammary gland. Correct
Answers True
(T/F) - Most of the fat in milk is surrounded by a
material that closely resembles cell membrane.
Correct Answers True
(T/F) - Pasteurization of donor human milk may
decrease bioactive factors such as lactoferrin and
lysozyme. Correct Answers True
(T/F) - Percent fat content of milk varies with
species. Correct Answers True
(T/F) - There is a greater abundance of whey
proteins in cow's milk than casein proteins.
Correct Answers False
(T/F) - Water is not a major component of milk.
Correct Answers False
,36. c. Secretory Vesicle Exocytosis
37. b. Lipid Synthesis and secretion
38. a. Eccrine Transport across the Apical
Membrane for water and ions.
39. e. Transcytosis of Interstitial Molecules
40. d. The Paracellular Pathway Correct Answers
Match the number in the diagram with the
corresponding pathway that it represents. (Slide
image left and right if your screen is too small.)
a. Eccrine Transport across the Apical Membrane
for water and ions.
b. Lipid Synthesis and secretion
c. Secretory Vesicle Exocytosis
d. The Paracellular Pathway
e. Transcytosis of Interstitial Molecules
36. Pathway I
37. Pathway II
38. Pathway III
39. Pathway IV
40. Pathway V
A carton of cows milk contains nutrients in ALL of
the following physical states EXCEPT:
a. suspended solids
b. covalently cross-linked protein gel
c. dissolved solids
, d. liquid Correct Answers b. covalently cross-
linked protein gel
A condition results from progressive destruction of
insulin producing B cells: Correct Answers type 1
diabetes and insulin dependent diabetes mellitus
(IDDM)
A condition that is characterized by insulin
resistance: Correct Answers type 2 diabetes and
non insulin dependent diabetes mellitus (NIDDM)
A major structural difference between the bovine
and human mammary glands is
a. the human gland does not have myoepitheilal
cells.
b. the human gland does not have ducts.
c. the human gland does not have alveoli.
d. the human gland does not have a gland cistern
Correct Answers d. the human gland does not
have a gland cistern
A protein in milk that binds iron and inhibits
bacterial growth and is also involved in bone
formation and increases bone mineral density is
____.
a.IgA
