BIOLOGY 111 EXAM 1 QUESTIONS & ANSWERS
In the double helix structure of nucleic acids, cytosine hydrogen bonds to - Answer -
guanine
Which of the structures above is a molecule that would be impossible to for through
covalent bonds given the valences of the constituent atoms. - Answer -C
amino acids have big differences in their characteris based on the - Answer -
Characteristics of their side chains
Which lipids have fused carbon rings - Answer -Steroids
The following structure is the amino acid glutamic acid. Four atoms (or groups of atoms)
are labeled (a,b,c,d). Which of these labelled carbon atoms represents the alpha
carbon, which will be found on all amino acids? - Answer -D
What is a SCIENTIFIC hypothesis? - Answer -a tentative explanation that can be tested
and is falsifiable
Which of the following statements about purines and pyrimidines is TRUE? - Answer -
Purines are double-ring structures, whereas pyrimidines are single-ring structures
Which of the following statements about the protein segment shown is true - Answer -
The structure shown is maintained by hydrogen bonding between amino acid side
chains.
A molecule with the formula C18H36O2 is probably - Answer -fatty acid
The ability or tendency of organisms or cells to maintain stable internal conditions is
called: - Answer -homeostasis
The difference between the sugar in DNA and the sugar in RNA is that the sugar in
DNA - Answer -contains one less oxygen atom.
The general chemical formula for carbohydrates includes the atoms - Answer -C, H,
and O
The chemical structure for benzene is shown below.
Which of the following is the correct 3D drawing for benzene? - Answer -B
Given the electron shell configuration for sulfur (S) shown, select the correct choice to
complete the following sentence: Sulfur has _______ protons in its nucleus and requires
_______ more electrons to complete its outer shell. - Answer -16,2
In the double helix structure of nucleic acids, cytosine hydrogen bonds to - Answer -
guanine
Which of the structures above is a molecule that would be impossible to for through
covalent bonds given the valences of the constituent atoms. - Answer -C
amino acids have big differences in their characteris based on the - Answer -
Characteristics of their side chains
Which lipids have fused carbon rings - Answer -Steroids
The following structure is the amino acid glutamic acid. Four atoms (or groups of atoms)
are labeled (a,b,c,d). Which of these labelled carbon atoms represents the alpha
carbon, which will be found on all amino acids? - Answer -D
What is a SCIENTIFIC hypothesis? - Answer -a tentative explanation that can be tested
and is falsifiable
Which of the following statements about purines and pyrimidines is TRUE? - Answer -
Purines are double-ring structures, whereas pyrimidines are single-ring structures
Which of the following statements about the protein segment shown is true - Answer -
The structure shown is maintained by hydrogen bonding between amino acid side
chains.
A molecule with the formula C18H36O2 is probably - Answer -fatty acid
The ability or tendency of organisms or cells to maintain stable internal conditions is
called: - Answer -homeostasis
The difference between the sugar in DNA and the sugar in RNA is that the sugar in
DNA - Answer -contains one less oxygen atom.
The general chemical formula for carbohydrates includes the atoms - Answer -C, H,
and O
The chemical structure for benzene is shown below.
Which of the following is the correct 3D drawing for benzene? - Answer -B
Given the electron shell configuration for sulfur (S) shown, select the correct choice to
complete the following sentence: Sulfur has _______ protons in its nucleus and requires
_______ more electrons to complete its outer shell. - Answer -16,2
