• 280,777 lifetime views


Biomolecules | Revision Notes | Chemistry | Class 12

A Biomolecule is any molecule present in living organisms including large macromolecules such as carbohydrates, proteins, nucleic acids & lipids, and the small molecules such as primary and secondary metabolites & natural products. What are 4 types of Biomolecules that make up the Living Organisms? It includes proteins, lipids, carbohydrates and Read more…


Biomolecules | Revision Notes | Bology | Class 12

Carbohydrates Classification of carbohydrates: Monosaccharides: Polyhydroxy aldehydes or polyhydroxy ketones which cannot be decomposed by hydrolysis to give simpler carbohydrates.Examples: Glucose, Fructose, Ribose, Arabinose,  Mannose, Gulose etc.. Oligosaccharides: The oligosaccharides (Greek, oligo, few) are carbohydrates which yield a definite number (2-9) of monosaccharide molecules on hydrolysis. Trisaccharides:  yield three monosaccharide molecules on hydrolysis.Examples: raffinose, which Read more…

Nucleus | Class IX

1. Nucleus is a very important component of the cell. 2. It is bounded by two nuclear membranes which separate it from cytoplasm. 3. Nuclear membrane also contain some pores in it 4. The nuclear membrane encloses a fluid called nucleoplasm. 5. The nucleus may be one or more in Read more…