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WorksheetsBiomolecules
Total questions: 14
Worksheet time: 7mins
The monomers used to synthesize proteins are called:
nucleotides
amino acids
fatty acids
sugars
glycerol
A nucleoside contains
a pentose sugar
a purine or pyrimidine base
one or more phosphate group
all of these
a pentose sugar and a base but not phosphate group
The molecule shown below is
a purine base
a pyrimidine base
a sugar
a fatty acid
an amino acid
The molecule shown below is
a purine base
a pyrimidine base
a sugar
a fatty acid
an amino acid
The molecule shown below is
dATP
dADP
dAMP
a polysaccharide
a sugar
What kind of molecule is represented by the structure below?
CH3CH2CH2CH2CH=CHCH2CH2CH2CH2CH2CH2CH2COOH
a sugar
an unsaturated fatty acid
a saturated fatty acid
a disaccharide
a phospholipid
What type of chemical bond is illustrated below?
a sugar-sugar bond
a glycerol-fatty acid bond
a peptide bond
a phosphate-phosphate bond
a hydrogen bond
Which of the following functions is not associated with proteins?
contraction
providing structural material
enzymes
specific binding
information storage
Which of the following levels of protein structure is often stabilized by S-S bonds?
primary structure
secondary structure
tertiary structure
quaternary structure
both tertiary and quaternary structures
The level of polypeptide folding in which the primary sequence coils around itself, stabilized by regularly spaced hydrogen bonds, is called
primary structure
alpha helix
beta sheet
tertiary structure
quaternary structure
What is the highest level of structure represented below? (Note: in this model, different polypeptide chains are represented by different colors)
primary structure
alpha helix
beta sheet
tertiary structure
quaternary structure
Which of the following reactions forms peptide bonds?
Hydration
Dehydration
Hydrogenation
None of these answers
What does N-terminus refer to?
The first amino acid with the abbreviation 'N' in the protein
The end of a protein with a free carboxylic acid group
A protein chain
The end of a protein with a free amine group
The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.
3' ; 5'
top ; bottom
hydrogen ; polynucleotide
5' ; 3'
