CLS UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS
CLS Actual Examination 2026/2027 Questions and
Answers Verified Solutions Latest Update
Question:
Peptide.
Answer:
Bonds that connect amino acids.
Question:
Polypeptide.
Answer:
A polymer (chain) of many amino acids linked together by peptide bonds.
Question:
Protein.
Answer:
An organic compound that is made of chains of amino acids
Question:
Globulins.
Answer:
antibodies (alpha, beta, gamma)
Question:
Denaturation.
Answer:
,A process in which a protein unravels, losing its specific structure and function; caused by changes
in pH, salt concentration, or high temperature
Question:
metabolism of amino acids.
Answer:
protein ingested, proteolytic enzymes, amino acids absorbed into portal blood, synthesis of plasma
and proteins
Question:
catabolism of protein.
Answer:
ingest protein, hydrolyzed into amino acids, deaminated into ammonia (urea to urine) or ketoacids
(citric acid cycle)
Question:
protein is made of.
Answer:
amino acids linked together into a polypeptide chain
Question:
Protein structure.
Answer:
primary (chain), secondary (winding), tertiary (twisting 3D), quaternary (functional protein)
Question:
functions of protein.
,Answer:
tissue nutrition (healing), distribution of h2o, buffer (helps maintain homeostasis), transport
(hormones and medications), storage (transferrin), glycoproteins (recognition of native and foreign
cells), antibodies (fighting diseases), hormones/receptors, structural (collagen), enzymes, clotting
factors (no clotting if inadequate protein)
Question:
Serum protein fractions separated by electrophoresis.
Answer:
Albumin, Alpha1, Alpha2, Beta, and Gamma
Question:
Albumin + globulin synthesis site.
Answer:
Liver
Question:
Normal serum level of albumin.
Answer:
3.5-5.5 g/dL
Question:
Normal serum level of prealbumin.
Answer:
16-35 mg/dL
Question:
, 3 types of peptides.
Answer:
dipeptide, tripeptide, polypeptide
Question:
primary protein structure.
Answer:
sequence of a chain of amino acids (polypeptide chain) with molecular characteristics
Question:
secondary structure of protein.
Answer:
winding amino acid chain
Question:
tertiary protein structure.
Answer:
3D twisting/folding pattern of a protein due to side chain interactions with physical and chemical
properties
Question:
quarternary structure of protein.
Answer:
2 or more polypeptide chains of functional protein
Question:
denaturation affects which protein structures.
CLS Actual Examination 2026/2027 Questions and
Answers Verified Solutions Latest Update
Question:
Peptide.
Answer:
Bonds that connect amino acids.
Question:
Polypeptide.
Answer:
A polymer (chain) of many amino acids linked together by peptide bonds.
Question:
Protein.
Answer:
An organic compound that is made of chains of amino acids
Question:
Globulins.
Answer:
antibodies (alpha, beta, gamma)
Question:
Denaturation.
Answer:
,A process in which a protein unravels, losing its specific structure and function; caused by changes
in pH, salt concentration, or high temperature
Question:
metabolism of amino acids.
Answer:
protein ingested, proteolytic enzymes, amino acids absorbed into portal blood, synthesis of plasma
and proteins
Question:
catabolism of protein.
Answer:
ingest protein, hydrolyzed into amino acids, deaminated into ammonia (urea to urine) or ketoacids
(citric acid cycle)
Question:
protein is made of.
Answer:
amino acids linked together into a polypeptide chain
Question:
Protein structure.
Answer:
primary (chain), secondary (winding), tertiary (twisting 3D), quaternary (functional protein)
Question:
functions of protein.
,Answer:
tissue nutrition (healing), distribution of h2o, buffer (helps maintain homeostasis), transport
(hormones and medications), storage (transferrin), glycoproteins (recognition of native and foreign
cells), antibodies (fighting diseases), hormones/receptors, structural (collagen), enzymes, clotting
factors (no clotting if inadequate protein)
Question:
Serum protein fractions separated by electrophoresis.
Answer:
Albumin, Alpha1, Alpha2, Beta, and Gamma
Question:
Albumin + globulin synthesis site.
Answer:
Liver
Question:
Normal serum level of albumin.
Answer:
3.5-5.5 g/dL
Question:
Normal serum level of prealbumin.
Answer:
16-35 mg/dL
Question:
, 3 types of peptides.
Answer:
dipeptide, tripeptide, polypeptide
Question:
primary protein structure.
Answer:
sequence of a chain of amino acids (polypeptide chain) with molecular characteristics
Question:
secondary structure of protein.
Answer:
winding amino acid chain
Question:
tertiary protein structure.
Answer:
3D twisting/folding pattern of a protein due to side chain interactions with physical and chemical
properties
Question:
quarternary structure of protein.
Answer:
2 or more polypeptide chains of functional protein
Question:
denaturation affects which protein structures.
