Biomolecules Practice Test 1

A biomolecule is any molecule that is present in living organisms, including large macromolecules such as proteins, polysaccharides, lipids, and nucleic acids, as well as small molecules such as primary metabolites, secondary metabolites, and natural products.

In this article, we prepared MCQ Quiz on Biomolecules topic from Unit I in Paper – I (Part B) and Paper-II.

• General Information – Biology MCQ Part 1
• General Information – Biology MCQ Part 2

1. Mostly all the sugars in Plants are…
A None of these
B Arabinose
C. D-sugar
D L-Sugar

2. Most Plant Viruses contain
A DNA
B. RNA
C Both DNA and RNA
D None of the given

3. The simplest aldose is
A. Glyceraldehyde
B Ribose
C Glucose
D Arabinose

4. Which group is present in the R-group of given structure

A. Guanidonium group
B Indole group
C Imidazole group
D Phenol group

5. Fats on hydrolysis in presence of enzyme ‘Lipase’ yield Glycerol and Fatty acids –
A In 10-steps
B. In 2-steps
C In 3-steps
D Directly

6. Puranose and Furanose derived from six and five-membered cyclic ether are respectively called –
A Furan and Pyran
B Only Furan
C. Pyran and Furan
D Only Pyran

7. Starch, Inulin and Glycogen are examples of …
A Oligosaccharides
B Structural Polysaccarides
C. Storage polysaccharides
D monosaccharides

8. Column A consists of different vitamins and column B consists of their chemical or other names. You have to match column A with column B and select the correct option given below as the correct answer.

A a-4, b-1, c-2, d-3
B a-1, b-2, c-3 d-4
C. a-4, b-1, c-3, d-2
D a-1, b-2, c-4, d-3

9. A cyclic hemiacetal structure of sugar is formed by the combination of.
A Carbonyl group and Amine group
B. Carbonyl group and hydroxyl group
C None of these
D Carbonyl group and a Ketone group

10. Sucrose is composed of…
A. Glucose and Fructose
B Glucose and Galactose
C Fructose and Galactose
D Mannose and Fructose

11. The correct configuration for a given structure is…

A D-Configuration
B L-Configuration
C S-Configuration
D. R-Configuration

12. Identify the structure…

A Uracil
B Palmitic acid
C Aspartic acid
D. Cholesterol

13. Inulin is a
A Hormone
B Xylan
C Glucosan
D. Fructosan

14. Depending upon the complexity and behaviour of hydrolysis carbohydrates are classified into …
A. 3 categories
B 4 categories
C None of these
D 2 categories

15. Hydrolysis of fats by alkalies into Fatty acids and Glycerol is called
A Coagulation
B Suspension
C. Saponification
D Colloidal

16. In sickle-cell anaemia the abnormal Hb is
A HbF
B HbM
C HbA2
D. HbS

17. What is the structure of the given biomolecule 

A Heme ring
B bacterial chlorophyll
C. Chlorophyll A
D Chlorophyll B

18. Which one of the following is a sulphur-containing amino acid?
A Leucine
B Alanine
C Valine
D. Cysteine

19. Identify the structure of a given…

A. Glutamic acid
B Aspartic acid
C Serine
D Cysteine

20. The composition of Raffinose is…
A Glucose – Glucose
B Galactose – Glucose
C Galactose – Galactose – Glucose – Fructose
D. Galactose – Glucose – Fructose

21. Glutathione is a
A dipeptide
B Octapeptide
C. Tripeptide
D Tetrapeptide

22. Which element is present in the least amount by weight in the Human body?
A. N (nitrogen)
B. P (phosphate)
C. H (hydrogen)
D. C (carbon)

23. Fats can be stored in the cell without disturbing their…
A None of the above
B. Osmotic relations
C Aleurone layer
D Hydroxyl bond

24. Which of the following statement is not correct?
A Fats are insoluble in water
B. Fats can be hydrolyzed by alkalies into gases and amino acids
C Fats together with waxes constitute neutral lipids
D Fats are poorer in oxygen in comparison to carbon

25. According to the Howarth representation of the sugars the -OH group at the reducing centre is present below the plane of the ring, the sugar is said to be in which of the following form?
A. alpha – form
B Both A and B
C beta – form
D None of the above