Which biomolecule is found in the highest concentration in a living organism?

When a living tissue is ground in trichloroacetic acid to form a slurry and filtered through cheesecloth or cotton,the $.....$ passes through the cheesecloth or cotton.

What is formed by the combination of atoms?

$A$ molecule with a molecular weight less than $1000 \text{ Dalton}$ is called:

Which of the following is not an organic compound?

Arrange the following elements in descending order of their contribution to percentage weight of the human body.
$(a)$ Oxygen
$(b)$ Carbon
$(c)$ Hydrogen
$(d)$ Nitrogen
Choose the correct answer from the options given below: