BIOL 133 Week 2 Quiz | Assignment Help | APUS
- american-public-university-system / BIOL 133
- 27 Dec 2019
- Price: $5
- Other / Other
BIOL 133 Week 2 Quiz | Assignment Help | APUS
Week
2 Quiz 1
Question
1 of 10
o
onion
o
bun
o
beef
o
cheese
Question
2 of 10
A.
starch
B.
DNA
C.
RNA
D.
cellulose
E.
glycogen
o
Requirement:
Strong
cell walls
Properties:
Linear
polymer rigid and strong
o
2. Requirement
Stable
storage of information
Properties:
4
base pairs, not easily hydrolyzed
o
Requirement:
Energy
storage for seeds
Properties:
Energy-rich
polysaccharides
o
4. Requirement:
Short-term
energy storage (animals)
Properties:
Energy-rich
polysaccharide
o
Requirement:
Transient
transmission of information
Properties:
4
base pairs, easily hydrolyzed
What factors allow a pool of 20 amino acids to produce thousands of unique proteins? (Select all that apply.)
o
variation in length of
amino acid backbone
o
each protein is encoded
by a distinct gene
o
variation in tertiary
structure
o
variations in which amino
acids are used
o
variations in glycosidic
linkage
o
variations in the type of
peptide bond
The
R group interactions, β-pleated sheets and α-helix structure can be denatured,
but what interaction relevant to structure cannot be denatured?
o
hydrophobic interactions
o
hydrogen bonds
o
ionic bonds
o
peptide bonds
o
disulfide bridge
Question
5 of 10
You
reply: “The
_______________
is a sugar in milk that you have trouble digesting, and
_________________
is an enzyme that will digest it for you.
o
lactase, lactose
o
lactose,lactase
Question
6 of 10
In
an experiment, a researcher grew cells in medium containing radiolabelled
phosphate. What macromolecules would you expect to be radiolabelled when
cellular components were later separated?
o
cholesterol
o
DNA
o
RNA
o
fatty acids
o
phospholipids
o
protein
o
starch
The
building blocks of nucleic acids are
o
nucleotides.
o
sugars.
o
peptides.
o
nitrogenous bases.
Question
8 of 10
Indicate
the statements that support the relationship between protein and structure.
o
A protein that unfolds or
is incorrectly folded can use chaperones to correct the structure.
o
when some proteins are
denatured, with return of the normal environmental conditions they might
refold.
o
A proteins final shape is
determined by the secondary structure.
o
pH, temperature and
agitation can denature proteins rendering them active.
o
A disease may occur if
proteins do not fold correctly.
___________
are used for energy storage.
o
Phospholipids
o
Waxes
o
Steroids
o
Triglycerides
o
Cholesterol
You
are served dessert at a restaurant. You want to know what % of the calories in
the dessert are from fat. The menu states that there are 10 grams of fat, 30
grams of carbohydrates and 4 grams of protein in the dessert. You know that the
number of calories per gram is roughly the same for both protein and
carbohydrates. What percentage of calories comes from fat for your dessert?
o
10.5%
o
37%
o
53%
o
28
USA 
India