Biomolecules Test

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Biomolecules Test - 74

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is a disaccharide

A
Glucose

B
Ribulose

C
Lactose

D
Arabinose

Solution

disaccharide is the sugar formed when two monosaccharides are joined by glycosidic linkage. Like monosaccharides, disaccharides are soluble in water. Three common examples are sucrose, $$lactose,$$ and maltose.
Lactose, the disaccharide of milk, consists of galactose joined to glucose by a β-1,4-glycosidic linkage. Lactose is hydrolyzed to these monosaccharides by lactase in human beings
Question 2
1 / -0

Which of the following is correct statement

A
Troleins are amino acid

B
$$\alpha$$-hydrogen is present in fructose

C
Starch is polymer of $$\alpha$$-glucose

D
Amylose is compound of cellulose

Solution

Starch is polymer of alpha glucose.
Question 3
1 / -0

On hydrolysis, which produces only glucose

A
Galactose

B
Maltose

C
Sucrose

D
None

Solution

$$C_{12}H_{22}O_{11}+H_2O\underset{Hydrolysis}{\rightarrow}C_{6}H_{12}O_6+C_6H_{12}O_6$$
Glucose Glucose
Question 4
1 / -0

Which one of the following is an amino acid

A
$$CH_3CONH_2$$

B
$$CH_3CONHCH_3$$

C
$$CH_3NHCHO$$

D
$$NH_2CH_2.COOH$$

Solution

Glycine $$\rightarrow NH_2-CH_2-COOH$$
Question 5
1 / -0

Nucleic acid is a polymer of

A
Nucleosides

B
$$\alpha$$ amino acids

C
Nucleotides

D
Glucose

Solution

Nucleic acid is a polymer of nucleotides.
Question 6
1 / -0

Which synthesis was done by Stainley Millar

A
Amino acid

B
Protein

C
Virus

D
Vitamin

Solution

Amino acid synthesis was done by stainley millar.
Question 7
1 / -0

Starch consists of two fractions, one is $$\alpha-$$amylose and the other is:

A
Amylopectin

B
Glycogen

C
Pecticamide

D
Alginic acid

Solution

Starch is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds.
It consists of two types of molecules, the linear and helical $$\alpha-$$ amylose and the branched amylopectin.
Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight.

Hence, option $$A$$ is correct.
Question 8
1 / -0

Which one of the following is a polysaccharide

A
Nylon

B
Amylose

C
Ribose

D
Polyethylene

Solution

Amylose is a polysaccharide.
Question 9
1 / -0

Which of the following is not an acidic amino acid

A
Lysine

B
Arginine

C
Aspartic acid

D
Histidine

Solution

Aspartic acid is an amino acid with acidic side chain.
Question 10
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Ribose is an example of

A
Ketohexose

B
Aldopentose

C
Disaccharide

D
Aldohexose

Solution

Ribose is an example of aldopentose.

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Re-Attempt Weekly Quiz Competition

Biomolecules Test - 74

Result

Biomolecules Test - 74

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SHARING IS CARING

Question 1

Glucose

Ribulose

Lactose

Arabinose

Solution

Question 2

Troleins are amino acid

$$\alpha$$-hydrogen is present in fructose

Starch is polymer of $$\alpha$$-glucose

Amylose is compound of cellulose

Solution

Question 3

Galactose

Maltose

Sucrose

None

Solution

Question 4

$$CH_3CONH_2$$

$$CH_3CONHCH_3$$

$$CH_3NHCHO$$

$$NH_2CH_2.COOH$$

Solution

Question 5

Nucleosides

$$\alpha$$ amino acids

Nucleotides

Glucose

Solution

Question 6

Amino acid

Protein

Virus

Vitamin

Solution

Question 7

Amylopectin

Glycogen

Pecticamide

Alginic acid

Solution

Question 8

Nylon

Amylose

Ribose

Polyethylene

Solution

Question 9

Lysine

Arginine

Aspartic acid

Histidine

Solution

Question 10

Ketohexose

Aldopentose

Disaccharide

Aldohexose

Solution

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