Biomolecules Test

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Biomolecules Test - 73

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Weekly Quiz Competition

Question 1
1 / -0

In polysaccharides the linkage connecting monosaccharide units is called

A
Glycoside linkage

B
Nucleoside linkage

C
Glycogen linkage

D
Peptide linkage

Solution

That is called glycosidic linkage.
Question 2
1 / -0

Canesugar on hydrolysis gives :

A
Glucose and maltose

B
Glucose and lactose

C
Glucose and fructose

D
Only glucose

Solution

$$C_{12}H_{22}O_{11}+H_2O\rightarrow C_6H_{12}O_6+C_6H_{12}O_6$$
Question 3
1 / -0

To become a carbohydrate a compound must contain at least :

A
2 carbons

B
3 carbons

C
4 carbons

D
6 carbons

Solution

3 carbons e.g, Glyceraldehyde
Question 4
1 / -0

The disaccharide present in milk is

A
Maltose

B
Lactose

C
Sucrose

D
Cellobiose

Solution

Lactose is present in milk (Glucose + Galactose).
Question 5
1 / -0

Which of the following is disaccharide

A
Lactose

B
Starch

C
Cellulose

D
Glucose

Solution

disaccharide (also called a double sugar or bivose) is the sugar formed when two monosaccharides (simple sugars) are joined by $$\text{glycosidic linkage.}$$
Lactose, the disaccharide of milk, consists of galactose joined to $$\text{glucose by a β-1,4-glycosidic linkage.}$$ Lactose is hydrolyzed to these monosaccharides by lactase in human beings
Question 6
1 / -0

Which of the following carbohydrate is a disaccharide

A
Glucose

B
Fructose

C
Raffinose

D
Maltose

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 $$maltose$$
Question 7
1 / -0

Starch is a ploymer of

A
Glucose

B
Fructose

C
Both a and b

D
None of these

Solution

$$\text{Starch is polymer of glucose,}$$ a sugar molecule made up of carbon (C), hydrogen (H), and oxygen (O) with a basic chemical formula $$C_6H_{12}O_6$$. Since it is only made of glucose, starch is considered a $$\text{homosaccharaide,}$$ a chain of sugars made of one type of molecule
Question 8
1 / -0

A sugar, that is not a disaccharide, among the following is

A
Lactose

B
Galactose

C
Sucrose

D
Maltose

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.
$$Galactose\ is\ a \ monosaccharide$$. When combined with glucose (monosaccharide), through a condensation reaction, the result is the disaccharide lactose. The hydrolysis of lactose to glucose and galactose is catalyzed by the enzymes lactase and β-galactosidase.
Question 9
1 / -0

Vitamin $$B_1$$ is

A
Riboflavin

B
Cobalamin

C
Thiamine

D
Pyridoxine

Solution

Vitamin $$B_1$$ is thiamine. Its main source is cereals.
Question 10
1 / -0

Which of the following is the sweetest sugar

A
Glucose

B
Fructose

C
Lactose

D
Sucrose

Solution

Sugar Relative sweetness
Sucrose 100
Glucose 74
Lactose 16
Fructose 173

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Biomolecules Test - 73

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Biomolecules Test - 73

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Question 1

Glycoside linkage

Nucleoside linkage

Glycogen linkage

Peptide linkage

Solution

Question 2

Glucose and maltose

Glucose and lactose

Glucose and fructose

Only glucose

Solution

Question 3

2 carbons

3 carbons

4 carbons

6 carbons

Solution

Question 4

Maltose

Lactose

Sucrose

Cellobiose

Solution

Question 5

Lactose

Starch

Cellulose

Glucose

Solution

Question 6

Glucose

Fructose

Raffinose

Maltose

Solution

Question 7

Glucose

Fructose

Both a and b

None of these

Solution

Question 8

Lactose

Galactose

Sucrose

Maltose

Solution

Question 9

Riboflavin

Cobalamin

Thiamine

Pyridoxine

Solution

Question 10

Glucose

Fructose

Lactose

Sucrose

Solution

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