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WorksheetsBIOL 1406 – Lecture Quiz 3 - Biomolecules
Total questions: 15
Worksheet time: 8mins
When placed in the same container, oil and water do not mix because
they are both polar.
water is polar and oil is nonpolar.
they are both nonpolar.
water is nonpolar and oil is polar.
Identify the choice that best completes the statement or answers the question. DNA stores
fat.
carbohydrates.
protein.
heredity information.
Amino acids can be classified by the
number of disulfide bridges they can form.
number of carbon–carbon double bonds in their fatty acids.
number of monosaccharides they contain.
characteristics of their side chains.
The two types of nucleic acids are
chlorophyll and retinal.
DNA and RNA.
lipids and sugars.
glucose and glycogen.
What is the nucleotide sequence of the complementary strand of the DNA molecule AATGCGA?
AGCGTAA
GGCATAG
AATGCGA
TTACGCT
The shape of a folded protein is determined by
its tertiary structure.
the number of peptide bonds.
the base-pairing rules.
the sequence of its amino acids.
Molecules that are both attracted to water and repel water are called
hydrophilic.
hydrophobic.
glycosidic.
amphipathic.
Identify the choice that best completes the statement or answers the question. Long chains of amino acids are found in
carbohydrates.
lipids.
proteins.
sugars.
Identify the choice that best completes the statement or answers the question. ATP (adenosine triphosphate) stores energy for cells to use in the bonds between its
amino acids.
carbon atoms.
nucleotides.
phosphates.
The general chemical formula for carbohydrates includes the atoms
C, H, and O.
C, H, and P.
C, H, O, and N.
C and H.
A nucleotide in DNA is made up of
a sugar, a phosphate, and a nitrogenous
a sugar plus a phosphate.
a base plus a ribose sugar.
four bases.
The shape of a protein is primarily determined by
the type and sequence of its amino acids.
its size.
its cell location.
None of the above
A(n) ________ protein is a protein that has become nonfunctional due to the loss of its three-dimensional structure.
environmentalized
permanent
denatured
hydrolyzed
All of the following are examples of lipids except
saturated fats.
starch.
cholesterol.
earwax.
Which of the following organic molecules are classified as carbohydrates?
amino acids
fatty acids
nucleotides
monosaccharides
