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BSN 1 - 1st Semester
CHEM 119 & CHEM 119.1
BROOOO 100/100
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Eri Bobadilla
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Cards (44)
What are the three types of carbohydrates mentioned?
Polyhydroxy aldehyde
,
polyhydroxy ketose
,
hydrolysis products
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What is the relationship between L-Fructose and D-Fructose?
They are
enantiomers
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What type of reaction converts a sugar's carbonyl to alcohol?
Reduction reaction
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What is blood sugar primarily composed of?
Glucose
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What is the most common biopolymer on earth?
Cellulose
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What is the difference between cellobiose and maltose?
One has
α-linkage
, the other has
β-linkage
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In which disaccharides is a glycosidic linkage present?
More
than
one
response
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What is the linkage present in chitin?
β(1-4)
N-acetyl-D-glucosamine
residues
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Which substance produces glucose and fructose when hydrolyzed?
Sucrose
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What sugars compose maltose?
2
glucose
only
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What causes lactose intolerance?
Inability to
metabolize
lactose
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Which carbohydrates give a positive Benedict’s test?
Glucose
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In which polysaccharides are all glycosidic linkages α(1→4)?
Starch
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What is the correct pairing of terms related to carbohydrates?
None
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What is a property of lipids?
Insoluble in water, soluble in
nonorganic
solvents
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What kind of bonds do lipases break to release fatty acids from triacylglycerol?
Ester bonds
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What is the designated polyunsaturated fatty acid mentioned?
Arachidonic acid
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Which statement about fatty acids is incorrect?
Fatty acids must have at least 16
carbons
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What deficiency causes rickets?
Vitamin D
deficiency
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What do lipases break to release fatty acids from triacylglycerol?
Ester bonds
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What is esterified to the OH groups of glycerol in glycerophospholipids?
2
fatty acids
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What is a classification of sphingoglycolipid?
Cerebroside
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What is the metabolic precursor of leukotrienes and prostaglandins?
Arachidonic acid
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How does aspirin produce its analgesic effect?
By inhibiting
prostaglandin
synthesis
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In which pair of fatty acids does the first listed acid have a higher melting point?
16:2
and
16:0
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Which vitamins are needed for blood coagulation?
Vitamin K
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What is not found in biological membranes?
Triacylglycerol
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What is the most abundant steroid in the body?
Cholesterol
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What is the structure of steroids?
3 six-
membered
rings and
1
five-membered
ring
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What are enantiomers?
Complete
mirror
images, differ at every
chiral
center
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What are epimers?
Differ at only one
chiral
center
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Which type of RNA is not common?
snRNA
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What do DNA rich in G-C pairs have?
3
hydrogen bonds
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What does ciprofloxacin inhibit?
DNA gyrase
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What can exposure of DNA to ultraviolet radiation lead to?
Formation
of
thymine dimers
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Which group is not in nucleosides?
Phosphate
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Which nucleobase is a purine?
Adenine
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What are single-ring bases?
C
,
T
,
U
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How does DNA replication occur in prokaryotes?
Unique
site; two directions, meets halfway
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Which of the following is not a universal feature of DNA replication?
All of these describe
DNA synthesis
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