CC2 LAB: LIPASE AND AMYLASE Flashcards

(61 cards)

1
Q

to catalyze oxidation/reduction reactions

A

oxidoreductases

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2
Q

to transfer functional group from one substance to another

A

transferases

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3
Q

formation of 2 products from a substrate by hydrolysis using water

A

hydrolases

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4
Q

intramolecular rearrangements

A

isomerases

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4
Q

non-hydrolytic addition or removal of groups from substrates

A

lyases

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5
Q

join together 2 molecules by the synthesis of new bonds

A

ligases

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6
Q

lipase is from what major class of enzymes

A

hydrolases

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6
Q

systematic name of lipase

A

triacylglycerol acylhydrolase

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7
Q

specific enzymes inside the pancreas

A

lipase
amylase

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8
Q

substrate of lipase

A

fats

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9
Q

products of lipase

A

alcohol
fatty acids

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9
Q

activators of lipase

A

colipase
bile salts

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9
Q

what does lipase attacks?

A

ester linkages

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10
Q

classic-cherry crandall method modified substrate

A

triolein

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10
Q

lipase acute pancreatitis: onset

A

4-8 hours

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11
Q

lipase acute pancreatitis: normalize

A

8-14 days

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11
Q

lipase acute pancreatitis: peak

A

24 hours

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12
Q

lipase assay optimal ph

A

8.8 pH

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12
Q

lipase assay normal temp

A

40 degrees celsius

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13
Q

what methods does lipase assay do

A

titration
turbidimetric method

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14
Q

classic-cherry crandall method substrate

A

olive oil

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14
Q

what does the method classic-cherry crandall used

A

titration

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15
Q

in lipase what enzymes are based on coupled reactions

A

peroxidase
glycerol kinase

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16
Q

in what sample or specimen is the lipase stable

A

serum

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17
how long does the lipase last if left in room temp
1 week
18
how long does the lipase last if left in the refrigerator at 4 degrees celsius
3 weeks
19
what will be the result of there is hemolysis in the sample
false low results
20
the amylase is from what major class of enzymes
hydrolase
20
reference ranges of lipase
0-1.0 U/mL 37 degrees celsius <0.6 ukat/L
20
catalyzes the breakdown of starch and glycogen to monosaccharides
amylase
21
hydrolizes the ester linkages of fats to produce alcohols and fatty acids
lipase
22
tissue sources of amylase
salivary glands acinar cells of pancreas
23
is a polysaccharide, made up of multiple glucose
starch
23
long and unbranched chain linked by a-1,4 glycosidic bonds
amylose
24
branched chain polysaccharide with a-1,6 linkages
amylopectine
25
substrate of amylase
starch/glycogen
25
storage for of glucose
glycogen
26
product of amylase
monosaccharides: -glucose -maltose -dextrin
27
activator of amylase
calcium ions chloride
28
what does amylase attacks
a-1,4 glycosidic bonds
28
amylase acute pancreatitis: onset
5-8 hours
29
amylase acute pancreatitis: peak
24 hours
30
amylase acute pancreatitis: normalize
2-5 days
31
measures the disappearance of starch substrate
amyloclastic
32
measures the appearance of the product
saccharogenic
33
coupling of several enzyme systems to monitor amylase activity
continuous monitoring
33
measures the increasing color from production of product coupled with a chromogenuc dye
chromogenic
33
what color does amyloclastic gives
dark-blue
34
amylase coupled enzyme absorbance of NADH is at
@340 nm
35
optimum pH of amylase
6.9-7.0
36
absorbance of NAD+
@260 nm
37
absorbance of NADH
@340 nm
38
inhibits salivary amylase
wheat germ lectin
38
amylase is stable in what samples
serum urine
39
the samples of amylase in rt can last up to
1 week
40
the samples of amylase in 4 degrees celsius can last up to
2 months or 6 months
41
you can detect acute pancreatitis in what enzyme
amylase lipase
42
anticoagulants used in amylase
citrate edta oxalate
43
capacity of the machine to read the sample
linearity
44
measurement of true negative
specificity
45
measurement of true positive
sensitivity