Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Steroid and Thyroid Hormones
Cytoplasmic receptors for steroids are proteins with two subunits that bind to the steroid molecules. When both receptor sites are occupied by the steroid then the receptor-steroid complex migrates to the nucleus where one subunit ensures that the complex binds to the specific site on the chromatin. Then the receptor subunits separate and the other subunit interact directly with the adjacent region of DNA molecule resulting in the transcription of the DNA segment into mRNA.
Thyroid hormone acts in a similar manner except that the receptor is located in the nucleus. The major hormone secreted by thyroid is thyroxine (T4). It travels in blood attached to carrier proteins. Thyroid also secretes a small amount of triiodothyronine (T3). Carrier proteins have higher affinity for T4 and very little T4 is free in the plasma. Only the free T4 and T3 enter the cells. The rest of the bound T4 acts as a reservoir for slow release. The free T4 that enters the cell s also converted to T3 enzymatically. Therefore, T3 is the chemically more potent and active form of thyroid hormone.
Figure:Steroid and Thyroid Hormones
Define needs for Nutritional Relief Programme and Interventions? A general feeding programme is required during first stage when the affected population does not have sufficien
Which kind of polarity do water-soluble and fat-soluble substances respectively have? Water-soluble substances are polar molecules, i.e., they have electrically charged areas.
Explain about the Weight Imbalance? You are aware that obesity is one of the major public health problems of the world, Earlier a problem of the developed nations; it is now in
Cloning Cloning is the procedure of creating an identical copy of something. It together refers to procedures used to form copies of DNA fragments (molecular cloning), cells (c
Q. Which are the structures that are part of the nervous system? The structures that form the nervous system can be divided into the peripheral nervous system (PNS) and the cen
Is transpiration the only way through which leaves lose water? Plants do not only lose water as vapor, as by transpiration. The leaves also lose liquid water by a phenomenon c
Proestrus - Estrous cycle This precedes the next heat and is characterised by functional involution of the corpora lutea and preovulatory swelling of the follicles. Fluid coll
Q. Show Upsloping ST-Segment? There are few subjects in exercise literature that has generated more controversy than the significance of up sloping ST-segments. The up sloping
Q. Explain threaded implants? Cylindrical non-threaded implants poorly distribute compressive forces and generate shears forces that may fragment and break the bone surrounding
Q. Pain - criteria for endosteal implants? Pain and tenderness are subjective criteria and depend on patient's interpretation of the degree of discomfort. Pain is defined as u
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd