Biomolecules Test

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Biomolecules Test - 1

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Weekly Quiz Competition

Question 1
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Carbohydrates Which taste sweet are called

A
Saccharides

B
Sugars

C
aldehydes and ketones

D
Saccharides and sugars.

Solution

carbohydrates like monosaccharides (one sugar molecule, example: Glucose) and disaccharides (two sugar molecule,example Sucrose I.e Table sugar) always tastes sweet.
Question 2
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Acetylation of glucose yields

A
p – toluenesulphonyl chloride

B
N Methylbenzamide

C
oxime

D
glucose pentaacetate

Solution

Acetylation of glucose with acetic anhydride gives glucose pentaacetate which confirms the presence of five –OH groups. Since it exists as a stable compound, five –OH groups should be attached to different carbon atoms.
Question 3
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Which of the following substances fall(s) in the category of carbohydrates?

A
Glycogen

B
Insulin

C
Cytosine

D
All of the above
Question 4
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The polymer(s) of dextrose is

A
Maltose

B
Glucose

C
Cellulose and Starch

D
Fructose

Solution

Monosaccharides (such as Glucose/dextrose) are building blocks of disaccharides (such as sucrose and lactose) and polysaccharides (such as Cellulose and Starch).
Question 5
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The chemical name of vitamin C is

A
citric acid

B
acetic acid

C
ascorbic acid

D
oxalic acid
Question 6
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What is the most abundant organic compound on earth?

A
Starch

B
Glucose

C
Cellulose

D
Fructose

Solution

Glucose is probably the most abundant organic compound on earth. It is the monomer of many of the larger carbohydrates, namely starch, cellulose
Question 7
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Which of the following pairs contains a reducing sugar and a non-reducing sugar?

A
Glucose and galactose

B
Maltose and lactose

C
Glucose and sucrose

D
Glucose and maltose
Question 8
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Which of the following substances does not fall in the category of carbohydrates?

A
Sugar

B
Starch

C
Glycerol

D
Cellulose
Question 9
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Which of the following statements is not correct?

A
A peptide bond is –CO–NH–.

B
Each polypeptide has one C-terminal and one N-terminal.

C
The amino acid sequence of a protein determines the function of the protein.

D
The union of two amino acids produces two peptide linkages.

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Biomolecules Test - 1

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Biomolecules Test - 1

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Question 1

Saccharides

Sugars

aldehydes and ketones

Saccharides and sugars.

Solution

Question 2

p – toluenesulphonyl chloride

N Methylbenzamide

oxime

glucose pentaacetate

Solution

Question 3

Glycogen

Insulin

Cytosine

All of the above

Question 4

Maltose

Glucose

Cellulose and Starch

Fructose

Solution

Question 5

citric acid

acetic acid

ascorbic acid

oxalic acid

Question 6

Starch

Glucose

Cellulose

Fructose

Solution

Question 7

Glucose and galactose

Maltose and lactose

Glucose and sucrose

Glucose and maltose

Question 8

Sugar

Starch

Glycerol

Cellulose

Question 9

A peptide bond is –CO–NH–.

Each polypeptide has one C-terminal and one N-terminal.

The amino acid sequence of a protein determines the function of the protein.

The union of two amino acids produces two peptide linkages.

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