Question

............... is the pigment which is mainly released due to degradation of phospholipids in the cell membrane and actively participates in the ageing.

• A. Lipofuchsin
• B. Free radical
• C. Cellular proteins
• D. None of the above

Answer 1

The correct option is A Lipofuchsin

• Ageing is a complex process that varies as to how it affects different people and even different organs. Most gerontologists (people who study aging) feel that aging is due to the interaction of many lifelong influences. These influences include heredity, environment, culture, diet, exercise and leisure, past illnesses, and many other factors.
• Lipofuscin (age pigment) is a brown-yellow, electron-dense, autofluorescent material that accumulates progressively over time in lysosomes of postmitotic cells, such as neurons and cardiac myocytes. It participates in the ageing phenomenon.
• Hence Lipofuchsin is the pigment which is mainly released due to degradation of phospholipids in the cell membrane and actively participates in the ageing.
• So, the correct answer is 'Lipofuchsin'.