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LAB BIOCHEM > Molisch Test > Flashcards

Molisch Test Flashcards

(17 cards)

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1
Q

Structural Formula for Carbohydrates

A

Cn(H2O)n

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2
Q

An extensive polymer of carbohydrate monomers

A

Polysaccharide

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3
Q

Our Primary Energy Source

A

Monosaccharide glucose

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4
Q

Polysaccharide starch

A

Plants

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5
Q

Glycogen

A

Animals

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6
Q

PURPOSE OF MOLISCH REAGENT

A

General test for carbohydrates that gives a purple ring as a positive result

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7
Q

COLOR OF MOLISCH REAGENT

A

Purplish-red

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8
Q

COMPOSITION OF MOLISCH REAGENT

A

5 grams of a-naphtol+95% of ethyl alcohol

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9
Q

POSITIVE TEST RESULTS OF MOLISCH

A

Purple ring at the interface of two layers

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10
Q

Cloudy brick red (MOLISCH REAGENT)
Purple ring (SULFURIC ACID)
CARBOHYDRATE

A

Glucose

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11
Q

FRUCTOSE

A

brick red (molisch reagent)
purple ring (sulfuric acid)
CARBOHYDRATE

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12
Q

LACTOSE

A

brick red (molisch reagent)
purple ring (sulfuric acid)
CARBOHYDRATE

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13
Q

translucent purple (molisch reagent)
purple ring (sulfuric acid)
CARBOHYDRATE

A

Sucrose

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14
Q

STARCH

A

Powdery brick red (molisch reagent)
purple ring (sulfuric acid)
CARBOHYDRATE

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15
Q

Oil

A

Emulsion (molisch reagent)
purple ring (sulfuric acid)
NON-CARBOHYDRATE

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16
Q

Casein

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A

powdery brick red (molisch reagent)
NO PURPLE RING (sulfuric acid)
NON-CARBOHYDRATE

17
Q

Distilled H2O (negative control)

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A

copper-like brick red (molisch reagent)
NO PURPLE RING (sulfuric acid)

LAB BIOCHEM (3 decks)

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