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CDU AVCL > AVCL 2 > Flashcards

AVCL 2 Flashcards

1
Q

Originates from the fat that many, but not all, members of this class of have the general molecular formula Cn(H2O)n and thus were once considered hydrates of carbon.

A

Carbohydrates

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2
Q

The simplest carbohydrates which can be aldoses or ketoses.

A

Monosaccharides

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3
Q

How many carbons does Monosaccharides have?

A

3-6 carbons

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4
Q

Ribose, Glucose, and Fructose are an example of what type of carbohydrates?

A

Monosaccharides

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5
Q

Two monosaccharides may be combined together with the loss of one molecule of water to form what?

A

Disaccharides

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6
Q

What is the bond that connects 2 monosaccharide units in a disaccharide?

A

Glycosidic Bond

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7
Q

Sucrose (table sugar) and Lactose (Milk sugar) are an example of what type of carbohydrates?

A

Disaccharides

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8
Q

It is consist of many monosaccharides linked together.

A

Polysaccharides

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9
Q

Starch, Pectin, Glycogen, and Cellulose are examples of what type of carbohydrates?

A

Polysaccharides

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10
Q

What are the 6 unknown carbohydrates mentioned in AVCL 2.1?

A
  1. Glucose
  2. Fructose
  3. Lactose
  4. Sucrose
  5. Starch
  6. Water
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11
Q

How many ml of each unknown carbohydrates must be poured into the test tubes for the tests?

A

2 ml

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12
Q

This test confirms the presence of carbohydrates in the analyte.

A

Molisch’s Test

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13
Q

How many ml of Molisch’s Reagent must be poured during the Molisch’s Test?

A

1 ml of Reagent

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14
Q

In what angle must be poured during the Molisch’s Test?

A

45 degrees

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15
Q

What must be the color of the positive result of the solution during the Molisch’s Test?

A

Purplish-Red Rings

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16
Q

A test used to determine of reducing sugar

A

Benedict’s Test

17
Q

How many ml of Benedict’s Reagent must be poured during the Benedict’s Test?

A

3 ml

18
Q

What is the heating method used in Benedict’s Test and how many minutes will it take to finish?

A

Boiling water bath in 2 minutes

19
Q

What must be the color of the positive result of the solution during the Benedict’s Test?

A

Yellow to Brick Red Precipitate

20
Q

A test used in differentiating monosaccharide from disaccharide.

A

Barfoed’s Test

21
Q

How many ml of Barfoeds Reagent must be

A
22
Q

How many ml of Barfoed’s Reagent must be poured during the Barfoed’s Test?

A

3 ml of Barfoed’s Reagent

23
Q

What heating method must be used in Barfoed’s test and how many minutes will it take?

A

Boiling water bath for 5 minutes.

24
Q

What must be the color of the positive result of the solution during the Barfoed’s Test?

A

Brick Red Precipitate

25
Q

A test used to determine aldoses from ketosis

A

Seliwanoff’s Test

26
Q

How many ml of Seliwanoff’s reagent must be poured during the Seliwanoff’s test?

A

3 ml of Seliwanoff’s reagent

27
Q

What heating method is used in Seliwanoff’s test and how many minutes will it take?

A

Boiling water bath in 2 minutes

28
Q

What must be the color of the positive result of the solution during the Seliwanoff’s Test?

A

Cherry Red Solution

29
Q

TRUE or FALSE:
Fructose by nature is an aldose.

A

FALSE
Fructose by nature is a KETOSE

30
Q

TRUE or FALSE
Succrose is a disaccharide

A

TRUE

31
Q

A test used to identify pentoses from hexoses.

A

Bial’s Test

32
Q

How many ml of Bial’s Reagent must be poured during the Bial’s Test?

A

2 ml of Bial’s Reagent

33
Q

What is the heating method used in Bial’s Test?

A

BUNSEN BURNER FLAME until liquid begins to boil

34
Q

What must be the color of the positive result of the solution during the Bial’s Test?

A

Bluish-Green Color

35
Q

A test used to identify polysaccharide in the laboratory

A

Iodine Test

36
Q

How many drops of iodine is needed during the Iodine Test?

A

1 drop

37
Q

What must be the color of the positive result of the solution during the Iodine Test?

A

Blue-Black Colorization

CDU AVCL (2 decks)

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