Biological Question: Download Biological PDF

Explain the science behind the hair becomes white or grey with ageing?

Tweet Share WhatsApp

Answer:

Melanin pigment is responsible for the hair colour, and research as shown that hydrogen peroxide interferes with its functioning. With aging catalase enzyme production diminishes which regulates the breakdown of hydrogen peroxide. When there is an excess accumulation of hydrogen peroxide in tissues it will cause de-coloration or whitening of hairs.

Download Biological PDF Read All 91 Biological Questions
Previous QuestionNext Question
Most of the red, blue and purple colours of plants are due to a pigment called
A. anthocyanin
B. carotene
C. chlorophyll
D. xanthophylls
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
A. Order
B. Subspecies
C. Class
D. Genus