Explain maintaining the ph balance, Science

Assignment Help:

Explain maintaining the pH Balance

You must be aware of the term pH. PH we know provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is basic (alkaline) and less than 7 is acidic). It is essential that the body maintains an optimum pH of 7.4 and kidneys do play a major role in ensuring that. Let us see how. The kidneys can correct any imbalances by removing excess acid (hydrogen ion) or base (bicarbonate) in the urine and restoring the bicarbonate concentration in the blood to normal. The tubular cells produce a constant amount of hydrogen ions and bicarbonate ions because of their own cellular metabolism (production of carbon dioxide).

By a carbonic anhydrase reaction identical to the red blood cells, hydrogen ions get produced and secreted into the lumen of the nephron. As well, bicarbonate ions get produced and secreted into the blood. In the lumen of the nephron, filtered bicarbonate combines along with the secreted hydrogen ions to form carbon dioxide and water (carbonic anhydrase is as well present on the luminal surface of the kidney cells). If the kidney eliminates hydrogen ions or bicarbonate ions in the urine relies upon the amount of bicarbonate filtered in the glomerulus from the blood relative to the amount of hydrogen ions secreted by the kidney cells. While the amount of filtered bicarbonate is greater than the amount of secreted hydrogen ions, then bicarbonate is lost in the urine. Likewise, if the amount of secreted hydrogen ion is greater than the amount of filtered bicarbonate, then hydrogen ions will be lost in the urine (i.e. acidic urine).


Related Discussions:- Explain maintaining the ph balance

Personal sensitivity- hygiene, Personal sensitivity : There are other dang...

Personal sensitivity : There are other dangers from substances which are not so common. e.g. mutagens , but one aspect we have not mentioned involves you. The eyes, lungs and skin

Gloves for personal protective devices, Gloves : Gloves should be worn whe...

Gloves : Gloves should be worn when transferring toxic, radioactive and carcinogenic compounds, irritants and corrosive liquids. The practice of wearing rubber gloves continuously

Transport of bulk chemicals, Transport of Bulk Chemicals : Ideally only su...

Transport of Bulk Chemicals : Ideally only sufficient concentrated acids, flammable solvents and other hazardous chemicals should be kept in the laboratory for immediate requireme

Science Fair Project, I need help finishing my science fair project, can yo...

I need help finishing my science fair project, can you help me?

Determine about the plant nutrients, Determine about the Plant nutrients  ...

Determine about the Plant nutrients  The primary source of energy for photosynthesis in plants is the sun. A complete analysis of plants shows the presence of a large number of

Define the role of bacteria in soil flora, Define the role of Bacteria in s...

Define the role of Bacteria in soil flora The most abundant soil organisms are primitive, very minute, unicellular organisms devoid of chlorophyll. Bacteria are most abundant i

STRUCTURE OF LEAF, #2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD ...

#2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD CELLS.

Define the regulation of glucocorticoid secretion, Define the Regulation of...

Define the Regulation of Glucocorticoid Secretion Glucocorticoid secretion is mainly controlled by ACTH or adrenocorticotropic hormone from the anterior pituitary gland. In any

Explain the apnoea - histotoxic hypoxia, Explain the Apnoea Apnoea mean...

Explain the Apnoea Apnoea means cessation of breathing. Temporary apnoea may be seen in low carbon dioxide tension in blood. During swallowing, there is a temporary apnoea.

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