FSHN 350 Exam 4 questions with
complete answers 2025/2026
functions of proteins - correct answer ✔✔structural support, catalyst, transport, movement,
transport, communication, protection, regulation of fluid balance and pH
we do not use the intact dietary proteins for body protein functions. We use the ____ _____ -
correct answer ✔✔amino acids
regulation of fluid balance by albumin - correct answer ✔✔1. Blood is pumped out of the heart
and into the blood vessels
2. The narrow diameter of the caps beds surrounding organs and tissues causes blood pressure
to increase. This forces fluid and nutrients into the interstial space (not albumin).
3. Increasing conc. Of albumin causes water to be drawn back into the caps. When this does not
happen, edema can occur, edema is common in protein deficiency when albumin levels are low
humans are made of - correct answer ✔✔80% water and 20% dry mass
dry mass composition - correct answer ✔✔50% protein
15% carbs
10% lipids
15% nucleic acids
essential amino acids 9/20 - correct answer ✔✔histidine
leucine
lysine
,isoleucine
methionine
threonine
tryptophan
valine
phenylalanine,
alanine - correct answer ✔✔straight chain
aliphatic/non-polar
branched chain - correct answer ✔✔valine
leucine
isoleucine
glycine - correct answer ✔✔straight chain
aliphatic/non-polar
valine - correct answer ✔✔aliphatic/non-polar
branched chain
leucine - correct answer ✔✔aliphatic/non-polar
branched chain
isoleucine - correct answer ✔✔aliphatic/non-polar
branched chain
, valine and isoleucine are - correct answer ✔✔isomers
hydroxylic/uncharged/polar - correct answer ✔✔serine
threonine
uncarged b/c no negatives on side chain and polar b/c contains oxygen on side chain
sulfur containing/polar AA - correct answer ✔✔methionine
cysteine
(no oxygen and no charge)
acidic amino acids - correct answer ✔✔aspartic acid, glutamic acid, glutamine and asparagine
what makes the acidic side chains acidic? - correct answer ✔✔side chains have oxygens without
hydrogens
polar side chain - correct answer ✔✔nitrogen or oxygen in side chain
asaprtic acid - correct answer ✔✔negative charged
polar
acidic
glutamic acid - correct answer ✔✔negative charged
polar
acidic
asaparagine - correct answer ✔✔uncharged
complete answers 2025/2026
functions of proteins - correct answer ✔✔structural support, catalyst, transport, movement,
transport, communication, protection, regulation of fluid balance and pH
we do not use the intact dietary proteins for body protein functions. We use the ____ _____ -
correct answer ✔✔amino acids
regulation of fluid balance by albumin - correct answer ✔✔1. Blood is pumped out of the heart
and into the blood vessels
2. The narrow diameter of the caps beds surrounding organs and tissues causes blood pressure
to increase. This forces fluid and nutrients into the interstial space (not albumin).
3. Increasing conc. Of albumin causes water to be drawn back into the caps. When this does not
happen, edema can occur, edema is common in protein deficiency when albumin levels are low
humans are made of - correct answer ✔✔80% water and 20% dry mass
dry mass composition - correct answer ✔✔50% protein
15% carbs
10% lipids
15% nucleic acids
essential amino acids 9/20 - correct answer ✔✔histidine
leucine
lysine
,isoleucine
methionine
threonine
tryptophan
valine
phenylalanine,
alanine - correct answer ✔✔straight chain
aliphatic/non-polar
branched chain - correct answer ✔✔valine
leucine
isoleucine
glycine - correct answer ✔✔straight chain
aliphatic/non-polar
valine - correct answer ✔✔aliphatic/non-polar
branched chain
leucine - correct answer ✔✔aliphatic/non-polar
branched chain
isoleucine - correct answer ✔✔aliphatic/non-polar
branched chain
, valine and isoleucine are - correct answer ✔✔isomers
hydroxylic/uncharged/polar - correct answer ✔✔serine
threonine
uncarged b/c no negatives on side chain and polar b/c contains oxygen on side chain
sulfur containing/polar AA - correct answer ✔✔methionine
cysteine
(no oxygen and no charge)
acidic amino acids - correct answer ✔✔aspartic acid, glutamic acid, glutamine and asparagine
what makes the acidic side chains acidic? - correct answer ✔✔side chains have oxygens without
hydrogens
polar side chain - correct answer ✔✔nitrogen or oxygen in side chain
asaprtic acid - correct answer ✔✔negative charged
polar
acidic
glutamic acid - correct answer ✔✔negative charged
polar
acidic
asaparagine - correct answer ✔✔uncharged
