ASU BIO 181 Exam 1 Question and Answer |
A+ Verified Updated | Most Tested
Which of the following correctly lists the simple molecules that were generated by Stanly
Miller and others in experiments that attempted to replicate the conditions on Earth
under which life may have originated? -✓✓simple sugars, amino acids, lipids, and
nucleotides
Sometimes, atoms gain or lose particles. The loss of which of the following results in a
change of atomic mass? -✓✓a neutron and an proton
Which of the following accurately describes a polar covalent bond? -✓✓the unequal
sharing of electrons between an atom with a partial positive charge, and an atom with a
partial negative charge
A researcher has measured the pH of a solution, and found that the pH is 10. This
solution is _____, and has more _____ compared with _____. -✓✓basic; hydroxide
ions; protons
What do double bonds have to deal with melting point and fatty acids. -✓✓The more
double bonds a fatty acid has the lower the melting point.
A phosphodiester bond is formed between: -✓✓a 5' phosphate and a 3' hydroxyl group.
Triacylglycerols are used primarily for: -✓✓energy storage
Which one of the following is NOT a component of an amino acid?
a) Central carbon atom
b)carboxyl group
c)a phosphate group
d)amino group
e)R-group
f)Hydrogen atom -✓✓a phosphate group
Which one of the following nucleotides could base pair with a pyrimidine? -✓✓adenine
A 1,4-glycosidic linkage would refer to which one of the following? -✓✓the covalent
bond between carbon 1 of one monosaccharide and carbon 4 of a second
monosaccharide
Which of the following gases did Stanley Miller NOT use in his experiment to
recapitulate the Earth's early atmosphere? -✓✓oxygen gas (O2)
, Which of the following DNA molecules would be more stable under conditions of
increasing temperature? -✓✓A DNA molecule that has more guanine and cytosine
nucleotides
In a nucleotide, the phosphate is attached to the _____ carbon of the sugar, and the
base is attached to the _____ carbon of the sugar. -✓✓5'; 1'
Which one of the following represents an actual Watson-Crick base pair with the
LARGEST number of hydrogen bonds? -✓✓cytosine and guanine
A template DNA strand contains the sequence 5'-ATGCTGAC-3'. The corresponding
sequence in the RNA transcript is: -✓✓5'-GUCAGCAU-3'
The function of a protein is dependent upon the shape into which the chain of amino
acids folds. Many noncovalent interactions are responsible for maintaining the protein's
shape. Assume you have isolated a protein from an organism in its proper shape, and
you have treated it with an enzyme that selectively targets and breaks only the peptide
bonds in the proteins. Would the protein retain its shape under these conditions? -
✓✓No; while the noncovalent bonds determine the shape of a protein, the peptide
bonds are required to hold the amino acids together.
The three-dimensional shape of a protein is determined by the primary, secondary,
tertiary, and in many cases, the quaternary structure of the protein. The following
sentences are taken from a scientific article on protein structure. Select the level of
protein structure that applies in each case. -✓✓secondary
"Hydrogen bonds between peptide backbone components form a distinct helical
structure." -✓✓quaternary
"Peptide bonds form between the monomer amino acids." -✓✓primary
Use the double-stranded DNA molecule below to answer the following questions. The
first pair of nucleotides (bolded) contains the start point of transcription (proceeding from
left to right).
5'-ATGTCAGGTACGCCACAT-3'
3'-TACAGTCCATGCGGTGTA-5'
Which of the following is the correct mRNA produced from the transcription of this DNA
molecule? -✓✓5'-AUGUCAGGUACGCCACAU-3'
Which of the following occurs in the A site of the ribosome during translation? -✓✓An
incoming charged tRNA binds to this site.
A+ Verified Updated | Most Tested
Which of the following correctly lists the simple molecules that were generated by Stanly
Miller and others in experiments that attempted to replicate the conditions on Earth
under which life may have originated? -✓✓simple sugars, amino acids, lipids, and
nucleotides
Sometimes, atoms gain or lose particles. The loss of which of the following results in a
change of atomic mass? -✓✓a neutron and an proton
Which of the following accurately describes a polar covalent bond? -✓✓the unequal
sharing of electrons between an atom with a partial positive charge, and an atom with a
partial negative charge
A researcher has measured the pH of a solution, and found that the pH is 10. This
solution is _____, and has more _____ compared with _____. -✓✓basic; hydroxide
ions; protons
What do double bonds have to deal with melting point and fatty acids. -✓✓The more
double bonds a fatty acid has the lower the melting point.
A phosphodiester bond is formed between: -✓✓a 5' phosphate and a 3' hydroxyl group.
Triacylglycerols are used primarily for: -✓✓energy storage
Which one of the following is NOT a component of an amino acid?
a) Central carbon atom
b)carboxyl group
c)a phosphate group
d)amino group
e)R-group
f)Hydrogen atom -✓✓a phosphate group
Which one of the following nucleotides could base pair with a pyrimidine? -✓✓adenine
A 1,4-glycosidic linkage would refer to which one of the following? -✓✓the covalent
bond between carbon 1 of one monosaccharide and carbon 4 of a second
monosaccharide
Which of the following gases did Stanley Miller NOT use in his experiment to
recapitulate the Earth's early atmosphere? -✓✓oxygen gas (O2)
, Which of the following DNA molecules would be more stable under conditions of
increasing temperature? -✓✓A DNA molecule that has more guanine and cytosine
nucleotides
In a nucleotide, the phosphate is attached to the _____ carbon of the sugar, and the
base is attached to the _____ carbon of the sugar. -✓✓5'; 1'
Which one of the following represents an actual Watson-Crick base pair with the
LARGEST number of hydrogen bonds? -✓✓cytosine and guanine
A template DNA strand contains the sequence 5'-ATGCTGAC-3'. The corresponding
sequence in the RNA transcript is: -✓✓5'-GUCAGCAU-3'
The function of a protein is dependent upon the shape into which the chain of amino
acids folds. Many noncovalent interactions are responsible for maintaining the protein's
shape. Assume you have isolated a protein from an organism in its proper shape, and
you have treated it with an enzyme that selectively targets and breaks only the peptide
bonds in the proteins. Would the protein retain its shape under these conditions? -
✓✓No; while the noncovalent bonds determine the shape of a protein, the peptide
bonds are required to hold the amino acids together.
The three-dimensional shape of a protein is determined by the primary, secondary,
tertiary, and in many cases, the quaternary structure of the protein. The following
sentences are taken from a scientific article on protein structure. Select the level of
protein structure that applies in each case. -✓✓secondary
"Hydrogen bonds between peptide backbone components form a distinct helical
structure." -✓✓quaternary
"Peptide bonds form between the monomer amino acids." -✓✓primary
Use the double-stranded DNA molecule below to answer the following questions. The
first pair of nucleotides (bolded) contains the start point of transcription (proceeding from
left to right).
5'-ATGTCAGGTACGCCACAT-3'
3'-TACAGTCCATGCGGTGTA-5'
Which of the following is the correct mRNA produced from the transcription of this DNA
molecule? -✓✓5'-AUGUCAGGUACGCCACAU-3'
Which of the following occurs in the A site of the ribosome during translation? -✓✓An
incoming charged tRNA binds to this site.
