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Steroid

steroid

A group name for lipids that contain a hydrogenated cyclopentanoperhydrophenanthrene ring system. Some of the substances included in this group are progesterone, adrenocortical hormones, the gonadal hormones, cardiac aglycones, bile acids, sterols (such as cholesterol), toad poisons, saponins and some of the carcinogenic hydrocarbons. Any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects.Any hormone affecting the development and growth of sex organs.An important type of [[lipid.


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Difference between ADH and Aldosterone?

... of intracellular vesicles carrying acquaporins with the PM, increasing the water that can be transported through the membrane. Aldosterone is a steroid, so what it does is to interact with a nuclear receptor that eventually turns on the transcription of a gene encoding a Sodium channel.

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by MrMistery
Mon Jul 20, 2009 2:51 am
 
Forum: Human Biology
Topic: Difference between ADH and Aldosterone?
Replies: 4
Views: 3121

can anyone help me answer these biology questions?

... in a protein? - how many pairs of e- can C share? - main structures of a plant cell vs animal cell - given a carbon skeleton determine what it is (steroid, starch, sugar etc) - what cell can convert light energy to chemical energy? - what sturctural fearture allows DNA to replicate? - a compound ...

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by tungvinchenzo
Thu Feb 05, 2009 8:55 am
 
Forum: General Discussion
Topic: can anyone help me answer these biology questions?
Replies: 2
Views: 743

Could you help me out with these questions?

1- Patients receiving steroid hormone frequently retain large amounts of water. Why? 2- Fow a few seconds after riding the express elevator from 20th floor to the ground floor, you still fell as if you are descending, even though you ...

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by cetinkaya
Mon Dec 15, 2008 5:36 am
 
Forum: Human Biology
Topic: Could you help me out with these questions?
Replies: 0
Views: 488

Re: membrane permeability - let's make it clear!

... small molecules than membranes with a more ordered structure. Steroids are bound to protein in the blood. Here your textbook is referring to the steroid hormones of course. they are bound noncovalently to protein in the blood. But as every noncovalent interaction is actually an equilibrium between ...

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by MrMistery
Mon Dec 01, 2008 12:27 am
 
Forum: Cell Biology
Topic: membrane permeability - let's make it clear!
Replies: 1
Views: 1139

Re: Stomach bloating and weight gain

... The anti-inflammatory compounds such as prednisone, prednisolone, dexamethasone and betamethasone are commonly used and prescribed corticosteroid medications that function in blocking the pro-inflammatory chemical mediators in the body including the compounds such as histamine, some of ...

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by Jennuan
Wed Oct 29, 2008 4:21 am
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 299
Views: 483387
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