Biomolecules

IMPORTANT

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

EASY
IMPORTANT

Select the incorrect statement from the following.

EASY
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

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

Question Image 

 

EASY
IMPORTANT

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

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

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?

MEDIUM
IMPORTANT

Identify the wrong statement.

EASY
IMPORTANT

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.

MEDIUM
IMPORTANT

Match the subunit components from List-I to the corresponding Macromolecules from List-II.

  List-I   List-II
(a) Question Image (i) Lipid
(b) Question Image (ii) Starch
(c) Question Image (iii) Protein
(d) Question Image (iv) RNA
    (v) DNA

Correct match is :-

MEDIUM
IMPORTANT

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....

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

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

EASY
IMPORTANT

Most abundant organic compound in living organisms is :

MEDIUM
IMPORTANT

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

EASY
IMPORTANT

Gross calorific value and physiological value of carbohydrate and lipid is