Fill in the blanks :
(i) ………….. bands of muscle fibres are made up of protein myosin while ……………. bands are composed of actin.
(ii) …………… cells help in blood clotting.
(iii) ……………. sheath is found in myelinated nerve fibres.
(iv) Hyaline cartilage has matrix ............. and ........ .
(v) The large spherical or oval cells present in adipose tissue are ............. .

Explanation

(i) Dark, light (ii) Blood platelets/thrombocytes (iii) Myelin (iv) Lacunae, chondroblasts (v) Adipocytes