Question

Give reasons :-
1. why is it essential for the oxygen to reach each and every cell of the body/
2. matrix of bone is made up of calcium.
3. prescence of contractile protein in the muscles .
4. why are unstriated muscles called so ?
5. neuron are long cells

Answer 1

Answer:

neurone are long cells because they have to carry messages through whole body part so if their long it makes it convenient for them to carry message easily

unstated muscles are called so because they show light and dark bands

because if the contractile protein are not present in the muscle then the muscle will not be able to contract relax properly

oxygen is essential to reach each and every cell of the body for the metabolic processes and for the formation of energy to live and survive

matrix of bone are made up of calcium because calcium is one of the most hard and porous element which provides us base for the the hard work