Steroids, Biology

Assignment Help:

STEROIDS

  1. They are a group of tetracyclic lipid derivatives which have a nucleus of cyclopentano-perhydrophenanthrene with phenanthrene part made of 3 hexane rings while the fourth ring is a pentane.
  2. The most common sterol is cholesterol.
  3. Ergasterol occurs in cell membranes of ergot fungi, yeast.
  4. Coprosterol is found in stool. It is formed by bacterial reduction of cholesterol.
  5. Sitosterol present in wheat germ oil.
  6. Steroids are of two types -

(i) Alcoholic steroids (Sterol) - Cholesterol, Coprosterol, 7-dehydroxycholesterol, Bile salts

(ii) Ketonic steroids (Sterone) - Ecdyson, Diosgenin, Adrenocorticoids, Sex hormone


Related Discussions:- Steroids

Cell membrane lining the inner surface of the cell wall, Cell membrane lini...

Cell membrane lining the inner surface of the cell wall The cell membrane lining the inner surface of the cell wall is made up of phospholipids (45%) and proteins (55%). Some

Determine the symptoms of shigellosis, Determine the Symptoms of Shigellosi...

Determine the Symptoms of Shigellosis Symptoms:  Pathogenicity involves the release of lipopolysaccharide endotoxin, which infects the intestinal mucosa. Shigellosis ranges fro

Classification of protozoa, Classification of Protozoa Traditionally, ...

Classification of Protozoa Traditionally, protozoans have been classified as flagellates, amoebae, sporozoans and ciliates. We have retained this broad grouping for convenienc

Zygotic or suspensor polyembryony, Zygotic or Suspensor Polyembryony ...

Zygotic or Suspensor Polyembryony Cleavage of the apical cells of the globular or filamentous proembryo produced by the zygote may result in two or more embryos in a seed. Th

Use of the activity chart, Use of the Activity Chart Organizing t...

Use of the Activity Chart Organizing teams and to decide its strength of different operations on mass production work. Establishing teams for maintenance and similar

Coronary arteries, Coronary Arteries The right coronary artery origina...

Coronary Arteries The right coronary artery originates form the right aortic valvular cusp, its, SA nodal branch supplies the SA node and AV nodal branch supply the AV nod

What is protein synthesis, What is Protein Synthesis? Protein Synthesi...

What is Protein Synthesis? Protein Synthesis :  Protein synthesis begins in the nucleus, with the formation of mRNA from a DNA template through transcription. The function of

Etiological factor of gastritis, Q. Etiological factor of gastritis? Th...

Q. Etiological factor of gastritis? They are same as acute. Generally acute gastritis if well treated gets healed in 3-4 days, however if untreated can progress to chronic gast

Regernation, Give ditail account on regernation in invertebrates and verta...

Give ditail account on regernation in invertebrates and vertabrites

What happens to the parent cell, What is produced at the end of the cell cy...

What is produced at the end of the cell cycle? how do they compare to each other and to the parent cell? What happens to the parent cell?

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