Biomolecules
Biomolecules: Overview
This topic covers concepts such as Chemical Composition of Living Organisms, Biomolecules, Analysis of Chemical Composition, Acid Soluble Pool, and Acid Insoluble Pool.
Important Questions on Biomolecules
Select the incorrect statement from the following.

Relationship between amino acid and protein is similar to one found which among the following?

Which of the following biomolecules is correct w.r.t. the presence of phosphodiester bond?

Which plant has a chemical compound whose structure is given below?

Arrange the following elements in the descending order in terms of percentage weight of human body.

The acid-soluble pool formed during the chemical analysis of living tissue would have all, except which of the following?

During the elemental analysis of tissue, if the tissue is fully burnt, all the carbon compounds are oxidized to gaseous form and the remaining is called ash. This ash contains which of the following?


Find the wrong statement(s):
A. Polymers of polysaccharides, fats and proteins are synthesised from monomers by ionic bonding.
B. Molecules with polar heads and hydrophobic tails are present in cell membrane.
C. Left end of protein chain is N-terminal end.
D. Right and Left handed helices are observed in protein.

Match the subunit components from List-I to the corresponding Macromolecules from List-II.
List-I | List-II | ||
(a) | ![]() |
(i) | Lipid |
(b) | ![]() |
(ii) | Starch |
(c) | ![]() |
(iii) | Protein |
(d) | ![]() |
(iv) | |
(v) |
Correct match is :-

In the chemical analysis of a cell, the acid-soluble fraction is called ...I... and the acid-insoluble fraction is called ...II.... The molecules having molecular weight less than 1000 Da are called ...III... and those found in the acid-insoluble fraction are called ...IV....

Which acid is used in the chemical analysis of living tissue?

The relative abundance of ____ and ____ is higher in living organisms as compared to Earth’s crust.

Lipids appear in acid-insoluble fraction during analysis of chemical composition of tissues because of-

Identify the odd one with respect to the compounds found in acid-soluble fraction.

Which of the following is an incorrect match with respect to the average composition of living cell?

Which of the following compound is common in cell wall of algae and other plants

Most abundant organic compound in living organisms is :

Which of the following element is present in a negligible amount in the human body:-

Gross calorific value and physiological value of carbohydrate and lipid is
