Question

What is NADP and NADPH

Answer 1

NADP is Nicotinamide adenine dinucleotide phosphate.
NADPH is NADP with a Hydrogen atom.

They have 2 functions.
1) NADPH is a good reducing agent. The H atom can be easily given out, that is reduces other compounds like FAD etc
2) The can store energy. Like ATP, NADPH stores energy in H bond.
NADPH converts to NADP and H+ releasing energy.
It also acts as cofactor to several enzmes( you will learn in BIOMOLECULES in class 12)
The actual relevance of these two is quite out of scope and complicated. This information should be sufficient, i suppose.
You will learn in detail in classes 11 and 12