How are the change in the ageing lens occurred in metabolism, Biology

Assignment Help:

How are the change in the ageing lens occurred in the metabolism?

Changes in the Ageing Lens

1) Physical changes: Lens weight increases, light transmission decreases, light scattering increases, fluorescein property increases and refractive index increases with age.

2) Metabolic changes: Proliferative capacity of lens decreases, many enzymes decreases, and insoluble albuminoids increases, glutathione decreases along with ascorbic acid, superoxide dismutase and glucose 6 phosphate dehydrogenase decreases.

3) Changes in the crystallins: Alpha and gamma crystallins decreases. Along with this gamma crystallins has a disulphide bond a11d increase in bela and non-tryotophan fluorescence.

4) Changes in plasma membrane and cytoskeleton.

5) There is loss of hexagonal cross linkage of fibres. Membrane protein and lipids are decreased. All the large membrane polypeptides are reduced along with changes in membrane rigidity.


Related Discussions:- How are the change in the ageing lens occurred in metabolism

Express krebs cycle photosystem ii, Calvin cycle electron transport chain g...

Calvin cycle electron transport chain glycolysis Kreb's cycle photosystem II.

Codex code of practice, Codex code of practice Codex Alimentarious Comm...

Codex code of practice Codex Alimentarious Commission (CAD) was established in 1963 with the objective to develop International Food Safety Standards to protect human health, w

Explain in brief about cytokines, Cytokines activate inflammatory cells lik...

Cytokines activate inflammatory cells like neutrophils and eosnophils.IL-5 is important in activation of eosnophils, IL-4 enhances IgE production by B-cells. IL-4, Il-5, IL-6, TNF-

Describe thg epa current registration process?, How will the plant-incorpor...

How will the plant-incorporated protectants rules change EPA's current registration process? The rules clarify which plant-incorporated protectants are needed to be evaluated u

Define larval stage of taenia cystcercus, Define Larval Stage of Taenia Cys...

Define Larval Stage of Taenia Cystcercus? The pork tapeworn (T: solium) and beef tapeworn (T : saginata , which are endoparasites of humans who are the final hosts

Open and closed type of circulatory systems, Open and Closed Type of Circul...

Open and Closed Type of Circulatory Systems There are two categories of circulatory system found in higher metazoans. In one type the original blastocoel carries on to be the

What is the procedure of gas exchange in human body, What is the procedure ...

What is the procedure of Gas Exchange in human body? Exchange of oxygen with the blood is a specialized process. If oxygen were carried in solution in blood plasma (the liquid

Physiological regeneration, Physiological Regeneration This type of r...

Physiological Regeneration This type of regeneration is a regular physiological function including the continuous replacements of cells and tissues, and thus is indispensible

Diagrams, excretary organ of whale

excretary organ of whale

Sources of air pollution, Combustion of fossil fuels and wood in industries...

Combustion of fossil fuels and wood in industries, automobiles, aircrafts, railways, thermal plant kitchens etc., agricultural operations and industrial processing are major source

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd