ANS 313 Exam 2 (Quiz Questions) with complete
solutions
The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. Evaluate a
diet that contains ME at 3.2 kcal/g, 0.90% lys, 0.30% met, and 0.060 trp.
Do you think the pigs will grow as expected if they had been fed exactly
at their requirements?
A. yes this diet is close enough
B. no it is significantly short on ME
C. no it is significantly short on lys
D. no it is significantly short on met
E. no it is significantly short on trp - ANSWER-D. no it is significantly
short on met
The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. Evaluate a
diet that contains ME at 2.4 kcal/g, 0.90% lys, 0.30% met, and 0.060 trp.
Do you think the pigs will grow as expected if they had been fed exactly
at their requirements?
A. yes this diet is close enough
B. no it is significantly short on ME
C. no it is significantly short on lys
D. no it is significantly short on met
E. no it is significantly short on trp - ANSWER-B no it is significantly short
on ME
,The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. If you
were to feed a diet with ME at 3.6 kcal/g, what should the %lysine be?
[HINT: the new %lys should be old lys x (new ME / old ME)].
a. 0.9%
b. 1.00%
c. 1.1%
d. 1.4% - ANSWER-C. 1.1%
What is the value of including amino acid supplements in the diet for a
nonruminant animal?
a. amino acid supplements help balance out the diet so that less dietary
nitrogen will be wasted
b. amino acid supplements are generally high in energy as well as
protein
c. amino acid supplements are low in starch
d. all of these - ANSWER-A. amino acid supplements help balance out the
diet so that less dietary nitrogen will be wasted
Proteins are essential for life as we know it. Which of the following is not
true?
a. the sequence of AA is a major determinant of the protein structure
b. if lysine is missing during protein synthesis, another basic AA can
usually be used in its place
c. the genetic code determines the sequence of AA and thus the profile of
AA in the body
, d. protein structure determines protein function - ANSWER-B. if lysine is
missing during protein synthesis, another basic AA can usually be used
in its place
What makes an AA essential?
a. the body needs it to make proteins
b. the body needs it to make proteins that are essential for life
c. the body cannot make enough to meet the needs of protein synthesis
d. the amino group has the L-conformation
e. it is limiting for production of protein - ANSWER-C. the body cannot
make enough to meet the needs of protein synthesis
This amino acid is a precursor for the brain neurotransmitter serotonin.
a. threonine
b. tryptophan
c. tyrosine
d. taurine - ANSWER-B. tryptophan
This amino acid is generally first limiting in cereal grains. In other
words, if corn or wheat had more of it, they would be better protein
sources. Give the name, which is less than 8 letters. - ANSWER-lysine
A pig consumes 40 g N per day and excretes 10 g N in feces and 20 g N in
urine. What is its protein balance or accretion per day. (Note the
question asks for protein balance, not N balance.)
a. 10
solutions
The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. Evaluate a
diet that contains ME at 3.2 kcal/g, 0.90% lys, 0.30% met, and 0.060 trp.
Do you think the pigs will grow as expected if they had been fed exactly
at their requirements?
A. yes this diet is close enough
B. no it is significantly short on ME
C. no it is significantly short on lys
D. no it is significantly short on met
E. no it is significantly short on trp - ANSWER-D. no it is significantly
short on met
The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. Evaluate a
diet that contains ME at 2.4 kcal/g, 0.90% lys, 0.30% met, and 0.060 trp.
Do you think the pigs will grow as expected if they had been fed exactly
at their requirements?
A. yes this diet is close enough
B. no it is significantly short on ME
C. no it is significantly short on lys
D. no it is significantly short on met
E. no it is significantly short on trp - ANSWER-B no it is significantly short
on ME
,The listed requirements for pigs fed a diet containing ME at 3.2 kcal/g
are: 1.00% lysine, 0.38% methionine, and 0.060% tryptophan. If you
were to feed a diet with ME at 3.6 kcal/g, what should the %lysine be?
[HINT: the new %lys should be old lys x (new ME / old ME)].
a. 0.9%
b. 1.00%
c. 1.1%
d. 1.4% - ANSWER-C. 1.1%
What is the value of including amino acid supplements in the diet for a
nonruminant animal?
a. amino acid supplements help balance out the diet so that less dietary
nitrogen will be wasted
b. amino acid supplements are generally high in energy as well as
protein
c. amino acid supplements are low in starch
d. all of these - ANSWER-A. amino acid supplements help balance out the
diet so that less dietary nitrogen will be wasted
Proteins are essential for life as we know it. Which of the following is not
true?
a. the sequence of AA is a major determinant of the protein structure
b. if lysine is missing during protein synthesis, another basic AA can
usually be used in its place
c. the genetic code determines the sequence of AA and thus the profile of
AA in the body
, d. protein structure determines protein function - ANSWER-B. if lysine is
missing during protein synthesis, another basic AA can usually be used
in its place
What makes an AA essential?
a. the body needs it to make proteins
b. the body needs it to make proteins that are essential for life
c. the body cannot make enough to meet the needs of protein synthesis
d. the amino group has the L-conformation
e. it is limiting for production of protein - ANSWER-C. the body cannot
make enough to meet the needs of protein synthesis
This amino acid is a precursor for the brain neurotransmitter serotonin.
a. threonine
b. tryptophan
c. tyrosine
d. taurine - ANSWER-B. tryptophan
This amino acid is generally first limiting in cereal grains. In other
words, if corn or wheat had more of it, they would be better protein
sources. Give the name, which is less than 8 letters. - ANSWER-lysine
A pig consumes 40 g N per day and excretes 10 g N in feces and 20 g N in
urine. What is its protein balance or accretion per day. (Note the
question asks for protein balance, not N balance.)
a. 10
