K.C.S.E Biology Q & A - MODEL 2005PP1QN13

K.C.S.E Biology Q & A - MODEL 2005PP1QN13

The diagram below shows a section through the mammalian skin.

a) Name the parts labeled E, F and G. 
E …………………………………………
F …………………………………………
G …………………………………………
b) State two functions in each case of substance secreted by the structures labeled.
(i) H ………………………………… 
(ii) I ………………………………….

answers

​a) E – Malpighian layer
F – Nerve cell
G – Erector pili muscle
b)i) H – Excretion of waste products of metabolism from the body e.g. excess.
Water, mineral salts traces of urea, lactic acid etc.
Temperature regulation in the body brings a cooling effect through
Loss of excess heat by evaporation of water.
Keeps the hair and epidermis flexible and water proof
Contains antiseptic substances for protection against bacteria.