Biology 101 - General Biology » Spring 2022 » Module 1 Quiz 2
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Question #1
Which functional group in ATP is part of the process that releases energy for cells to use?
A.
amino group
B.
hydroxyl group
C.
methyl group
D.
phosphate group
Question #2
When a polysaccharide that is 10 monomers long is broken down into monomers, how many molecules of water are required?
A.
11
B.
9
C.
10
D.
12
Question #3
The structural polysaccharide, cellulose, is found in _________________________.
A.
bacterial cell walls
B.
animal cell membranes
C.
plant cell walls
D.
amyloplasts, plant organelles that store carboydrates
Question #4
A molecule with the chemical formula C6H12O6 is probably a _________________________.
A.
nucleic acid
B.
protein
C.
hydrocarbon
D.
carbohydrate
Question #5
Which polymers contain nitrogen?
A.
proteins
B.
starch
C.
lipids
D.
carbohydrates
Question #6
Hydrocarbons have mostly ____________________, which makes them insoluble in water.
A.
polar covalent bonds
B.
nonpolar covalent bonds
C.
charged functional groups
D.
hydrophilic functional groups
Question #7
Which molecules are found in lard and butter?
A.
polysaccharides
B.
saturated fats
C.
proteins
D.
unsaturated fats
Question #8
An enzyme (protein) has normal activity at pH 6. At pH 5, the enzyme has decreased activity, likely due to _____________________.
A.
peptide bonding
B.
dehydration
C.
denaturation
D.
primary structure
Question #9
Which group is different for each of the twenty different amino acids?
A.
the R group
B.
the amino group
C.
the carboxyl group
D.
the hydrogen
Question #10
Which bonds join amino acids together in the primary structure of a protein?
A.
disulfide bonds
B.
peptide bonds
C.
hydrogen bonds
D.
glycosidic bonds
Question #11
A β-pleated sheet is an example of __________________________ structure.
A.
primary
B.
secondary
C.
tertiary
D.
quaternary
Question #12
The tertiary structure of a protein is the ___________________________.
A.
three-dimensional shape of the protein
B.
α helix or β pleated sheet
C.
order of amino acids
D.
complex of multiple protein subunits (polypeptides)
Question #13
The quaternary structure of a protein is the ___________________________.
A.
three-dimensional shape of the protein
B.
complex of multiple protein subunits (polypeptides)
C.
order of amino acids
D.
α helix or β pleated sheet
Question #14
In a cellular protein, where would you expect to find a hydrophilic amino acid?
A.
on the inside of the protein, away from water
B.
on the outside of the protein, interacting with lipid molecules
C.
on the outside of a membrane protein, interacting with phospholipid fatty acid tails
D.
on the outside of the protein, interacting with water
Question #15
The sequence GAACGA may be found in _______________________.
A.
neither DNA nor RNA
B.
both DNA and RNA
C.
DNA only
D.
RNA only
Question #16
The sugar in DNA is ________________________.
A.
deoxyribose
B.
glucose
C.
fructose
D.
ribose
Question #17
One function of RNA molecules is to __________________________.
A.
pass genetic information to offspring
B.
carry messages from DNA to ribosomes
C.
copy DNA
D.
copy themselves
Question #18
Which molecule is a monomer?
A.
starch
B.
cellulose
C.
disaccharide
D.
glucose
Question #19
Which functional group is present in all amino acids?
A.
- OH
B.
-NH2
C.
-SH
D.
- CH3
Question #20
Which chemical or functional group helps a molecule dissolve in water?
A.
- CH3 (methyl group)
B.
fats
C.
- NH2 (amino group)
D.
hydrocarbon tails (side chains)
Question #21
Reactions that break down polymers are an example of ______________________ reactions.
A.
dehydration
B.
synthesis
C.
hydrolysis
D.
polymer
Question #22
Which polymers contain nitrogen?
A.
lipids
B.
starch
C.
proteins
D.
carbohydrates
Question #23
The structural polysaccharide, cellulose, is found in _________________________.
A.
bacterial cell walls
B.
amyloplasts, plant organelles that store carboydrates
C.
plant cell walls
D.
animal cell membranes
Question #24
A molecule with the chemical formula C6H12O6 is probably a _________________________.
A.
nucleic acid
B.
hydrocarbon
C.
protein
D.
carbohydrate
Question #25
Saturated fats ___________________________.
A.
are liquid at room temperature
B.
have multiple double bonds in their fatty acids
C.
are more common in plants than in animals
D.
are solid at room temperature
Question #26
Which macromolecules perform the widest range of functions?
A.
lipids
B.
polysaccharides
C.
proteins
D.
carbohydrates
Question #27
How many peptide bonds are present in a protein that contains 45 amino acids?
A.
90
B.
46
C.
44
D.
45
Question #28
A β-pleated sheet is an example of __________________________ structure.
A.
quaternary
B.
primary
C.
secondary
D.
tertiary
Question #29
The secondary structure of a protein is the ___________________________.
A.
order of amino acids
B.
α-helix or β-pleated sheet
C.
complex of multiple protein subunits (polypeptides)
D.
three-dimensional shape of the protein
Question #30
Collagen is a protein made of three polypeptides. This means that collagen has ________________________ structure.
A.
primary
B.
secondary
C.
quaternary
D.
tertiary
Question #31
The tertiary structure of a protein is the ___________________________.
A.
complex of multiple protein subunits (polypeptides)
B.
α helix or β pleated sheet
C.
three-dimensional shape of the protein
D.
order of amino acids
Question #32
The sequence GAACUU may be found in _____________________.
A.
DNA only
B.
neither DNA nor RNA
C.
both DNA and RNA
D.
RNA only
Question #33
One function of RNA molecules is to __________________________.
A.
carry messages from DNA to ribosomes
B.
pass genetic information to offspring
C.
copy DNA
D.
copy themselves
Question #34
DNA is made of ___________________________.
A.
amino acids
B.
fatty acids
C.
monosaccharides
D.
nucleotides
Question #35
Which monomer/polymer pairing is correct?
A.
amino acid/polysaccharide
B.
monosaccharide/polypeptide
C.
amino acid/polypeptide
D.
monosaccharide/DNA
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