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

Explain about the glycemic index (gi), Explain about the Glycemic Index (GI...

Explain about the Glycemic Index (GI)? In the previous sections, we have studied that some carbohydrates are rapidly digested and absorbed, some are digested slowly while some

Explain functional property of gelation/viscosity, Explain Functional prope...

Explain Functional property of Gelation/Viscosity  Mode of action  Protein-protein interactions produce matrix formations and setting Food system Salad dressings,

How to know what i already paid, I know the answer to the question but when...

I know the answer to the question but when I selected buy it said $80, now I want to know if it is $80 more or if you will subtract what I already paid to $80 and therefore will on

Give detail explanation of aerobic exercises, Aerobic Exercises, Examples a...

Aerobic Exercises, Examples and their Do's and Don'ts In the aerobic exercises it requires activities performed for a longer period here we do like to mention certain activitie

Define phase of the cell cycle, Q. Generally which phase of the cell cycle ...

Q. Generally which phase of the cell cycle has longer duration? The mitotic phase has quite a shorter length and the interphase comprises approximately 4/5 of the cell cycle.

Zoonoses disease-classification modes of transmission, Classification acco...

Classification according to the modes of transmission 1.  Direct zoonoses: The direct zoonoses are those zoonoses that are transmitted from an infected vertebrate host to a

Characteristics of the digestive system of earthworm, Q Which are the organ...

Q Which are the organs and characteristics of the digestive system of earthworms related to the kind of diet of these animals? Small organisms ingested together with soil parti

Define the statement -eyes absent protein, Which of the following is a true...

Which of the following is a true statement regarding the Eyes Absent Protein? A. EYA is a transcriptional activator that having both a DNA binding domain and a transactivation

How is heart contraction triggered, How is heart contraction triggered? ...

How is heart contraction triggered? Heart contraction is independent from neuronal stimulus (although it can be modulated by the autonomous nervous system). In the heart there

Explain the digestibility coefficient - proteins, Explain the Digestibility...

Explain the Digestibility Coefficient? You have earlier learnt that dietary proteins are hydrolyzed to amino acids during digestion. The digestion begins in the stomach by the

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