BIO 150 Exam 1 QUESTION AND
ANSWERS VERIFIED TO PASS (23 PGS)
Which polymers are composed of amino acids?
Proteins
Nucleic acids
Carbohydrates
Monomers - correct answer ✔Proteins
Which of the following is not attached to the central carbon atom in an amino
acid?
A carboxyl functional group
An amino functional group
A side chain ("R group")
An oxygen - correct answer ✔An Oxygen
Which part of an amino acid is always acidic?
Amino functional group
Side chain ("R group")
Carboxyl functional group
None of the above - correct answer ✔Carboxyl Functional Group
Which monomers make up RNA?
,Nucleotides
Simple sugars
Polymers
Amino acids - correct answer ✔Nucleotides
Which of the following statements about the formation of polypeptides from
amino acids is true?
A. Polypeptides form by condensation or hydrolysis reactions.
B. A bond forms between the carboxyl functional group of one amino acid and
the amino functional group of the other amino acid.
C. The reaction occurs through the addition of a water molecule to the amino
acids.
D. A bond can form between any carbon and nitrogen atom in the two amino
acids being joined. - correct answer ✔A bond forms between the carboxyl
functional group of one amino acid and the amino functional group of the other
amino acid.
True or false? Enzymes in the digestive tract catalyze hydrolysis reactions.
True
False - correct answer ✔True
Proteins are polymers of _____.
hydrocarbons
nucleotides
, CH2O units
glycerol
amino acids - correct answer ✔Amino Acids
What type of bond joins the monomers in a protein's primary structure?
ionic
peptide
S-S
hydrogen
hydrophobic - correct answer ✔Peptide
Alpha helices and beta pleated sheets are characteristic of a
____________________________. - correct answer ✔protein's secondary
structure.
The secondary structure of a protein results from _____.
ionic bonds
hydrophobic interactions
bonds between sulfur atoms
peptide bonds
hydrogen bonds - correct answer ✔Hydrogen Bonds
Tertiary structure is NOT directly dependent on _____.
peptide bonds
ANSWERS VERIFIED TO PASS (23 PGS)
Which polymers are composed of amino acids?
Proteins
Nucleic acids
Carbohydrates
Monomers - correct answer ✔Proteins
Which of the following is not attached to the central carbon atom in an amino
acid?
A carboxyl functional group
An amino functional group
A side chain ("R group")
An oxygen - correct answer ✔An Oxygen
Which part of an amino acid is always acidic?
Amino functional group
Side chain ("R group")
Carboxyl functional group
None of the above - correct answer ✔Carboxyl Functional Group
Which monomers make up RNA?
,Nucleotides
Simple sugars
Polymers
Amino acids - correct answer ✔Nucleotides
Which of the following statements about the formation of polypeptides from
amino acids is true?
A. Polypeptides form by condensation or hydrolysis reactions.
B. A bond forms between the carboxyl functional group of one amino acid and
the amino functional group of the other amino acid.
C. The reaction occurs through the addition of a water molecule to the amino
acids.
D. A bond can form between any carbon and nitrogen atom in the two amino
acids being joined. - correct answer ✔A bond forms between the carboxyl
functional group of one amino acid and the amino functional group of the other
amino acid.
True or false? Enzymes in the digestive tract catalyze hydrolysis reactions.
True
False - correct answer ✔True
Proteins are polymers of _____.
hydrocarbons
nucleotides
, CH2O units
glycerol
amino acids - correct answer ✔Amino Acids
What type of bond joins the monomers in a protein's primary structure?
ionic
peptide
S-S
hydrogen
hydrophobic - correct answer ✔Peptide
Alpha helices and beta pleated sheets are characteristic of a
____________________________. - correct answer ✔protein's secondary
structure.
The secondary structure of a protein results from _____.
ionic bonds
hydrophobic interactions
bonds between sulfur atoms
peptide bonds
hydrogen bonds - correct answer ✔Hydrogen Bonds
Tertiary structure is NOT directly dependent on _____.
peptide bonds
