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.

Arrange the steps for obtaining the acid-soluble and acid-insoluble fractions in the correct sequence.
$I -$ Filtration
$II -$ Slurry (paste)
$III -$ Grinding with trichloroacetic acid
$IV -$ Taking living tissue
$V -$ Obtaining acid-soluble and acid-insoluble fractions

Based on size,which category do molecules fall into?

What does the ash obtained after drying and burning living tissue contain?

Biomolecules include ......... .

Elemental analysis gives elemental composition of living tissues in the form of $P$,while analysis of chemical compounds gives an idea of $Q$ present in living tissues.