Well ovbiously as we all learned in hmm...about 2nd grade... steriods are BAD for you. and you should NOT take them! Understand? Good....
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cholesterol
Steroid hormones are composed of lipids.
steriod
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steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
The synthesis of steroid hormones primarily takes place in the endoplasmic reticulum and mitochondria of cells. Cholesterol is the precursor molecule for all steroid hormones, which are produced through a series of enzymatic reactions. These hormones play important roles in regulating various physiological processes in the body.
Steroid hormones, such as estrogen and testosterone, are able to enter the target cell and bind to receptors in the nucleus. These hormones are lipid-soluble, allowing them to pass through the cell membrane and directly interact with nuclear receptors to regulate gene transcription.
The vertebrates are further divided into five groups or classes.
Its Five classes of ArthropodsInsectsArachnidsCrustaceansCentipedes and Millipedes
No.
This is from wikipediaIn general, it is accepted that there are five major classes of plant hormones, some of which are made up of many different chemicals that can vary in structure from one plant to the next.The chemicals are each grouped together into one of these classes based on their structural similarities and on their effects on plant physiology. (following this is a list of the five major classes)Other plant hormones and growth regulators are not easily grouped into these classes; they exist naturally or are synthesized by humans or other organisms, including chemicals that inhibit plant growth or interrupt the physiological processes within plants. Each class has positive as well as inhibitory functions, and most often work in tandem with each other, with varying ratios of one or more interplaying to affect growth regulation.(I highlighted the word many and added sentence in brackets)
Enzyme