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.
phosphate group
C.
methyl 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.
11
B.
10
C.
12
D.
9
Question #3
The structural polysaccharide, cellulose, is found in _________________________.
A.
plant cell walls
B.
animal cell membranes
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.
nucleic acid
C.
carbohydrate
D.
protein
Question #5
Which polymers contain nitrogen?
A.
carbohydrates
B.
starch
C.
proteins
D.
lipids
Question #6
Hydrocarbons have mostly ____________________, which makes them insoluble in water.
A.
nonpolar covalent bonds
B.
hydrophilic functional groups
C.
polar covalent bonds
D.
charged 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.
denaturation
B.
peptide bonding
C.
primary structure
D.
dehydration
Question #9
Which group is different for each of the twenty different amino acids?
A.
the amino group
B.
the hydrogen
C.
the carboxyl group
D.
the R group
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.
quaternary
B.
secondary
C.
tertiary
D.
primary
Question #12
The tertiary structure of a protein is the ___________________________.
A.
α helix or β pleated sheet
B.
complex of multiple protein subunits (polypeptides)
C.
three-dimensional shape of the protein
D.
order of amino acids
Question #13
The quaternary structure of a protein is the ___________________________.
A.
α helix or β pleated sheet
B.
complex of multiple protein subunits (polypeptides)
C.
order of amino acids
D.
three-dimensional shape of the protein
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 a membrane protein, interacting with phospholipid fatty acid tails
C.
on the outside of the protein, interacting with lipid molecules
D.
on the outside of the protein, interacting with water
Question #15
The sequence GAACGA may be found in _______________________.
A.
both DNA and RNA
B.
DNA only
C.
RNA only
D.
neither DNA nor RNA
Question #16
The sugar in DNA is ________________________.
A.
deoxyribose
B.
fructose
C.
glucose
D.
ribose
Question #17
One function of RNA molecules is to __________________________.
A.
copy DNA
B.
pass genetic information to offspring
C.
carry messages from DNA to ribosomes
D.
copy themselves
Question #18
Which molecule is a monomer?
A.
cellulose
B.
starch
C.
glucose
D.
disaccharide
Question #19
Which functional group is present in all amino acids?
A.
-SH
B.
- CH3
C.
-NH2
D.
- OH
Question #20
Which chemical or functional group helps a molecule dissolve in water?
A.
hydrocarbon tails (side chains)
B.
- CH3 (methyl group)
C.
- NH2 (amino group)
D.
fats
Question #21
Reactions that break down polymers are an example of ______________________ reactions.
A.
hydrolysis
B.
dehydration
C.
synthesis
D.
polymer
Question #22
Which polymers contain nitrogen?
A.
lipids
B.
proteins
C.
starch
D.
carbohydrates
Question #23
The structural polysaccharide, cellulose, is found in _________________________.
A.
animal cell membranes
B.
amyloplasts, plant organelles that store carboydrates
C.
bacterial cell walls
D.
plant cell walls
Question #24
A molecule with the chemical formula C6H12O6 is probably a _________________________.
A.
carbohydrate
B.
hydrocarbon
C.
protein
D.
nucleic acid
Question #25
Saturated fats ___________________________.
A.
are solid at room temperature
B.
are liquid at room temperature
C.
have multiple double bonds in their fatty acids
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.
secondary
B.
primary
C.
tertiary
D.
quaternary
Question #29
The secondary 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 #30
Collagen is a protein made of three polypeptides. This means that collagen has ________________________ structure.
A.
primary
B.
quaternary
C.
tertiary
D.
secondary
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.
both DNA and RNA
B.
RNA only
C.
neither DNA nor RNA
D.
DNA only
Question #33
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 #34
DNA is made of ___________________________.
A.
fatty acids
B.
monosaccharides
C.
amino acids
D.
nucleotides
Question #35
Which monomer/polymer pairing is correct?
A.
monosaccharide/polypeptide
B.
amino acid/polypeptide
C.
monosaccharide/DNA
D.
amino acid/polysaccharide
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