WGU C785 BIOCHEMISTRY PRACTICE QUESTIONS & ANSWERS
. Which of the following is not involved in the biosynthesis of a protein
molecule?
1. Codon
2. Ribosome
3. Messenger RNA
4. Amylase - CORRECT ANSWER - 4
The biosynthesis of a protein molecule uses information encoded in
genes. The amino acid sequence of the protein is delineated by the
nucleotide sequence of the gene that encodes the protein. Codons,
sequences of three adjacent nucleotides along a DNA or messenger RNA
molecule, designate the specific amino acid to be incorporated into a
polypeptide.
A catabolic enzyme:
1. Joins two or more substances into a larger molecule
2. Cleaves a molecule into two or more parts
3. Inserts a substance between two or more existing molecules
4. Acts as a chemical messenger between amino cells - CORRECT
ANSWER - 2
A catabolic enzyme engages in destructive metabolism, which involves
degrading or breaking down complex molecules into simpler ones with
, the resulting release of energy. In the body, the breakdown of food in
the gastrointestinal tract by a variety of digestive enzymes is an example
of a catabolic process. The opposite of catabolism is anabolism.
A proteolytic enzyme has the following action:
1. It cleaves complex sugars into simple sugars.
2. It joins fatty acids into proteins.
3. It joins proteins to sugars to form glycoproteins.
It cleaves protein molecules into smaller units - CORRECT ANSWER - 4
Proteolytic enzymes, also known as proteases, catalyze the splitting or
breakdown of proteins into smaller peptide fractions and amino acids.
The process of accomplishing this breakdown is called proteolysis.
Peptidases are a subgroup of proteases that that catalyze the hydrolysis
of peptide linkages; they are present in plants and yeast and in the body.
In the body, they are involved in digestion.
Amylase has all of the following properties except:
1. It breaks down starches into sugars.
2. It cleaves proteins into amino acids.
3. It is a component of human saliva.
4. High serum levels may indicate pancreatic inflammation. - CORRECT
ANSWER - 2
Amylase is the class of enzymes involved in the breakdown and digestion
of starches - complex carbohydrates - into simple sugars to supply
energy. Amylases are glycoside hydrolases and act on ?-1,4-glycosidic
. Which of the following is not involved in the biosynthesis of a protein
molecule?
1. Codon
2. Ribosome
3. Messenger RNA
4. Amylase - CORRECT ANSWER - 4
The biosynthesis of a protein molecule uses information encoded in
genes. The amino acid sequence of the protein is delineated by the
nucleotide sequence of the gene that encodes the protein. Codons,
sequences of three adjacent nucleotides along a DNA or messenger RNA
molecule, designate the specific amino acid to be incorporated into a
polypeptide.
A catabolic enzyme:
1. Joins two or more substances into a larger molecule
2. Cleaves a molecule into two or more parts
3. Inserts a substance between two or more existing molecules
4. Acts as a chemical messenger between amino cells - CORRECT
ANSWER - 2
A catabolic enzyme engages in destructive metabolism, which involves
degrading or breaking down complex molecules into simpler ones with
, the resulting release of energy. In the body, the breakdown of food in
the gastrointestinal tract by a variety of digestive enzymes is an example
of a catabolic process. The opposite of catabolism is anabolism.
A proteolytic enzyme has the following action:
1. It cleaves complex sugars into simple sugars.
2. It joins fatty acids into proteins.
3. It joins proteins to sugars to form glycoproteins.
It cleaves protein molecules into smaller units - CORRECT ANSWER - 4
Proteolytic enzymes, also known as proteases, catalyze the splitting or
breakdown of proteins into smaller peptide fractions and amino acids.
The process of accomplishing this breakdown is called proteolysis.
Peptidases are a subgroup of proteases that that catalyze the hydrolysis
of peptide linkages; they are present in plants and yeast and in the body.
In the body, they are involved in digestion.
Amylase has all of the following properties except:
1. It breaks down starches into sugars.
2. It cleaves proteins into amino acids.
3. It is a component of human saliva.
4. High serum levels may indicate pancreatic inflammation. - CORRECT
ANSWER - 2
Amylase is the class of enzymes involved in the breakdown and digestion
of starches - complex carbohydrates - into simple sugars to supply
energy. Amylases are glycoside hydrolases and act on ?-1,4-glycosidic
