with verified correct answer latest update
2025
Lipids differ in their degree of saturation or unsaturation due to their
number of ____.
a. peptide linkages
b. double bonds
c. saccharide units
d. amino acids
e. oxygen atoms --- correct precise answer ---b. double bonds
Which item is an essential amino acid?
a. serine
b. glutamine
c. leucine
d. cysteine
e. alanine --- correct precise answer ---c. leucine
,The application of heat or acid to a protein that causes its shape to
change is known as ____.
a. hydrolization
b. condensation
c. stiffening
d. denaturation
e. destabilization --- correct precise answer ---d. denaturation
What percentage of total food energy should protein provide?
a. 40-50%
b. 10-35%
c. 5-10%
d. 20% --- correct precise answer ---b. 10-35%
When amino acids are deaminated, the immediate products are
ammonia and often a ____.
a. keto acid
b. uric acid
c. folic acid
d. gulch acid
e. photo acid --- correct precise answer ---a. keto acid
,When two amino acids are chemically joined together, the resulting
structure is called a ____.
a. polypeptide
b. polysaccharide
c. diglyceride
d. dipeptide
e. disaccharide --- correct precise answer ---d. dipeptide
Which item is a nonessential amino acid in human nutrition?
a. tryptophan
b. threonine
c. phenylalanine
d. methionine
e. proline --- correct precise answer ---e. proline
In general, the protein quality in grains would be most improved by
the addition of a plant protein ____.
a. methionine
b. tryptophan
c. phenylalanine
, d. lysine
e. glutamic acid --- correct precise answer ---d. lysine
Which item is contained in an amino acid?
a. an acid group
b. an aldehyde group
c. a central oxygen group
d. an ester group
e. a central hydrogen atom --- correct precise answer ---a. an acid
group
The process whereby messenger RNA is made from a DNA template is
____.
a. expression
b. sequencing
c. ribosome assembly
d. translation
e. transcription --- correct precise answer ---e. transcription
Essential amino acids are those that ____.
a. are secreted in order to digest food