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Biomolecules > EA1 and 2 > Flashcards

EA1 and 2 Flashcards

1
Q

____ is the active component in Benedict’s Reagent

A

copper sulfate

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2
Q

____ is the storage form of carbohydrates in plants

A

starch

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3
Q

___ is the active component present in Molisch Reagent

A

alpha-naphthol

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4
Q

_ is the active component present in Mucic acid Reagent

A

nitric acid

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5
Q

____ is the active component present in Barfoed’s Reagent

A

copper acetate

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6
Q

The test for the presence of ketohexoses is

A

Seliwanoff’s test

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7
Q

Branched polysaccharides contain

A

Alpha 1,6 linkage

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8
Q

All are isomeric monosaccharides except

A

sucrose

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9
Q

The active ingredient present in Seliwanoff’s test is

A

Resorcinol

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10
Q

The test that is specific for the presence of pentoses is

A

Bial’s test

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11
Q

The most abundant biopolymer in nature is

A

Cellulose

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12
Q

The reactive ingredient present in Bial’s reagent is

A

Orcinol

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13
Q

The chemical bond between carbohydrate molecules is called

A

Glycosidic

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14
Q

The test that is specific for the presence of galactose is

A

Mucic acid test

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15
Q

a test that detects the presence of reducing sugars

A

Benedict’s test

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16
Q

a non reducing sugar

A

sucrose

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17
Q

test detecting the presence of galactose

A

Mucic Acid Test

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18
Q

a test that differentiate glucose from maltose

A

Barfoed’s test

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19
Q

a test that detects the presence of starch

A

Iodine test

20
Q

predominant sugar in the blood

A

glucose

21
Q

a test that differentiates mannose from ribose

A

Bial’s test

22
Q

a test that differentiates glucose from fructose

A

Seliwanoff’s test

23
Q

a sugar that contains beta 1-4 linkage

A

Lactose

24
Q

a test that detects the presence of carbohydrates

A

Molisch test

25
Q

The sugar present in nucleic acids is

A

ribose

26
Q

The storage form of glucose in humans and other vertebrates is

v

A

glycogen

27
Q

all are protective proteins except

A

collagen

28
Q

is the wavelength in nanometer used in spectrophotometric of proteins

A

280

29
Q

is a catalyst used in Kjeldahl Method

A

copper sulfate

30
Q

is an amino acid responsible for uv absorption of proteins

A

tryptophan

31
Q

is the word that stands for “I” in ELISA

A

Immunosorbent

32
Q

is the active component present in Lowry’s reagent

A

Phosphotungstic Acid

33
Q

ELISA test meaning

A

Enzyme Linked Immunosorbent Assay Test

34
Q

These proteins are soluble in water and dilute acid but are not coagulated by heat

A

protamine

35
Q

Beta-pleated sheet is the major structural motif in the following proteins except

A

keratin

36
Q

All are classification of proteins based on function except

A

globular proteins

37
Q

In the Kjeldahl procedure for protein determination, the acid used is

A

sulfuric acid

38
Q

The three dimensional structure of a protein refers to the

A

tertiary structure

39
Q

Proteins that have high affinity to sugar groups

A

lectin

40
Q

measures the quantity of nitrogen originally present in the protein

A

Kjeldahl’s method

41
Q

measurement of scattered light at 180 degrees angle

A

turbidimtery

42
Q

responsible for keeping enzymes in active state

A

glutathione

43
Q

uv light absorbance of test protein solution

A

spectrophotometric estimation

44
Q

based on reduction of phosphomolybdic acid

A

lowry’s method

45
Q

This protein structure denotes the configurational relationship between residues which are about 3-4 amino acids apart in the linear sequence

A

secondary structure

46
Q

The number of amino acids present in an oxytocin oligopeptide is

A

9

47
Q

In order to convert weight of nitrogen to weight of protein, the weight of nitrogen has to be multiplied by

A

6.25

Biomolecules (14 decks)

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