Biology Assignment 3 Latest Questions and Correct Answers
2024 (Graded 100%)
Suppose you discovered a new amino acid. Its R-group contains only hydrogen and carbon atoms.
Predict the behavior of this amino acid. - ANSWER It is hydrophobic.
Proteins are polymers of _____. - ANSWER amino acids
What type of bond joins the monomers in a protein's primary structure? - ANSWER peptide
Which of these illustrates the secondary structure of a protein? - ANSWER string with only
two curls
The secondary structure of a protein results from _____. - ANSWER hydrogen bonds
What name is given to the process seen in this animation? - ANSWER dehydration synthesis
This animation illustrates the functioning of a _____ protein. - ANSWER transport
Arrow A is indicating a(n) _____ protein. - ANSWER structural
Arrow D is indicating a _____ protein. - ANSWER receptor
Which of these does NOT contain a structural protein? - ANSWER ovalbumin
Defensive proteins are manufactured by the _____ system. - ANSWER immune
Which of the following best describes primary structure in proteins? - ANSWER It is the
sequence of amino acids in the complete protein.
An isomer of a particular molecule is - ANSWER a molecule that has the same formula,
but a different structure.
Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. - ANSWER
basic: arginine
neutral polar: asparagine
neutral nonpolar: alanine
Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. - ANSWER
acidic: glutamic acid
neutral polar: threonine
neutral nonpolar: tryptophan
At the pH found in cells (about 7.0), what happens to the carboxyl group on an amino acid? -
ANSWER It acts as an acid and loses a proton, giving it a negative charge.
2024 (Graded 100%)
Suppose you discovered a new amino acid. Its R-group contains only hydrogen and carbon atoms.
Predict the behavior of this amino acid. - ANSWER It is hydrophobic.
Proteins are polymers of _____. - ANSWER amino acids
What type of bond joins the monomers in a protein's primary structure? - ANSWER peptide
Which of these illustrates the secondary structure of a protein? - ANSWER string with only
two curls
The secondary structure of a protein results from _____. - ANSWER hydrogen bonds
What name is given to the process seen in this animation? - ANSWER dehydration synthesis
This animation illustrates the functioning of a _____ protein. - ANSWER transport
Arrow A is indicating a(n) _____ protein. - ANSWER structural
Arrow D is indicating a _____ protein. - ANSWER receptor
Which of these does NOT contain a structural protein? - ANSWER ovalbumin
Defensive proteins are manufactured by the _____ system. - ANSWER immune
Which of the following best describes primary structure in proteins? - ANSWER It is the
sequence of amino acids in the complete protein.
An isomer of a particular molecule is - ANSWER a molecule that has the same formula,
but a different structure.
Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. - ANSWER
basic: arginine
neutral polar: asparagine
neutral nonpolar: alanine
Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. - ANSWER
acidic: glutamic acid
neutral polar: threonine
neutral nonpolar: tryptophan
At the pH found in cells (about 7.0), what happens to the carboxyl group on an amino acid? -
ANSWER It acts as an acid and loses a proton, giving it a negative charge.
