Cholesterol, Biology

Assignment Help:

CHOLESTEROL

  1. Other name is parental steroid.
  2. It is present all over the body but absent in cerebrospinal fluid.
  3. Cholesterol is found exclusively in animal food.
  4. It has also been reported to occur in Potato.
  5. The major part of body cholesterol is synthesized in liver and adrenal cortex.
  6. Other organs taking part in synthesis of cholesterol are skin, intestine, kidneys, ovaries and testes.
  7. Normal cholesterol concentration of blood is 140 - 250 mg/100 ml.
  8. It also forms component of low density lipoproteins (LDL or b -lipoprotein, 10 - 25%) and high density lipoproteins (HDL or a -proteins, 20%).
  9. Concentration of LDL and VLDL is found to increase in atherosclerosis and coronary thrombosis.
  10. Cholesterol is component of cell membranes in animals and wall-less bacteria called mycoplasma.
  11. It helps in formation of bile salts.
  12. Cholesterol prevents premature breakdown of erythrocytes.
  13. Cholesterol transports fat to liver for metabolism.
  14. It produces sex hormones - progesterone, estrogen (female sex hormones) and testosterone (male sex hormone).
  15. Moulting hormone ecdysone is formed from cholesterol in insects.
  16. On combination with a saturated fatty acid, cholesterol forms yellowish plaques in the walls of large and medium sized arteries. The walls become thick fibrotic and calcified. The phenomenon is called atherosclerosis. It narrows lumen of arteries resulting in reduced flow of blood.
  17. Birth control tablets possess steroid hormone progesterone.

Related Discussions:- Cholesterol

Specific considerations and applied aspects in dentistry, Specific consider...

Specific considerations and applied aspects in dentistry The dental chair and delivery system. The chair should be smooth and seamless. The greatest potential for cross contami

Hydrophilicity plot, Hydrophilicity Plot is a computer plot which checks t...

Hydrophilicity Plot is a computer plot which checks the relative summed hyrophobicity or hydrophilicity of adjacent amino acid sidechains (usually within a moving window of about

Male reproductive disorders-testicular hypoplasia, Testicular Hypoplasia ...

Testicular Hypoplasia Hypoplasia refers to testicular disorders related to congenitally underdeveloped and underactive spermatic epithelium of one or both testes even though t

Organic chemistry and macromolecules, identify 7 speccific ways in which yo...

identify 7 speccific ways in which you can diversify carbon-containing compounds

Describe the effects of the failure of the pancreas, (a) Name the condition...

(a) Name the condition and (b) describe the effects of the failure of the pancreas to produce sufficient-insulin. (c) How is this condition treated? .

Explain about chthalamus, Explain about chthalamus The realised niche o...

Explain about chthalamus The realised niche of Chthalamus is reduced from its fundamental niche and it is limited to the upper tidal zone Lower  limits Out-competed

Explain hepatitis c, Hepatitis C It provides sustained viral responses ...

Hepatitis C It provides sustained viral responses (SVRs) of 54% to 63%. When used as monotherapy, peginterferons once weekly are more effective than standard interferon 3 times

Explain nutritional support management - cancer patient, Explain about the ...

Explain about the Nutritional Support Management? Tube feeding is usually started. If tube feeding is not possible, parenteral nutrition through peripheral vein or through the

Explain the nucleic acid is the transforming agent or not, Fredrick Griffit...

Fredrick Griffith published a series of experiments that collectively were dubbed "The Transforming Principle" in 1928. Which of the following prevented him from being able to decl

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