ANSWERS) 2024 (277337) - DUE 4
October 2024
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.
, Complete the following vocabulary exercise relating to the level
of structure in proteins. - -ANSWER--1. Quaternary structure is
the result of two or more protein subunits assembling to form a
larger, biologically active protein complex.
2. Secondary structure describes the alpha-helices and beta-
sheets that are formed by hydrogen bonding between
backbone atoms located near each other in the polypeptide
chain.
3. Primary structure is the sequence of amino acids in a protein.
4. Tertiary structure is achieved when a protein folds into a
compact, three-dimensional shape stabilized by interactions
between side-chain R groups of amino acids.
Which one of the following is not a component of each
monomer used to make proteins? - -ANSWER--a phosphorous
atom, P
Business borrowing becomes more difficult when ________.
the Federal Reserve increases the money supply
the federal government increases spending