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