Steroid hormones exert their action by?

Answer 1

steroid hormones can pass easily through the plasma membrane, the hormones then bind to intracellular receptors which induce a metabolic pathway which later promotes transcription of a specific gene.

Answer 2

binding to specific receptors within the target cells, triggering a series of intracellular events that result in changes in gene expression. This leads to a variety of biological responses, including alterations in metabolism, growth, and development.

Answer 3

One of two paths may be taken... Either cell surface receptor will grab the steroid and cause a cascade or it will be small enough to move straight to the nucleus... Each pathway will result in some kind of genetic expression change!

Answer 4

Steroid hormones diffuse into cells being lipid-soluable

and may enter any cell in the body. They bind a specific protein molecule - the receptor. This activates mRNA

transcription.

Answer 5

Well first of all, we know that a target cell is the cell (or organ) that actually contains little receptors for a particular hormone that's being sent. The endocrine system produces two main types of hormones; which are steroid hormones and non-steroid hormones BOTH of which contain protein. However, these hormones have a different chemical make-up therefore their mode of action in target cells and tissues differ.

Firstly, steroid hormones (For example cortisol) or a fat-soluble hormone PASSES THROUGH THE PLASMA MEMBRANE to cause changes in its target cell. Once it's through the membrane and it's nuclear envelope, this is where the protein comes in. It binds to a receptor protein which is inside the nucleus. This hormone receptor then binds to the DNA (where all changes are made mechanically) Thus, leading to the activation of the certain genes that need to be active, as well as the start of protein synthesis.

On the contrary, Non-steroid hormones which can also be referred to as messengers does not enter the membrane to change the cell. An example of this would be adrenaline. Because non-steroid hormones are not fat-soluble these messenger bind to receptor proteins in the plasma membrane (not inside). A protein than replays when an enzyme converts ATP to a second messenger (referred to as cAMP) which activates an enzyme cascade.

Answer 6

Entering the nucleus of a cell and initiating or altering the expression of a gene.

Answer 7

Have you saw the movie The Hulk? It's similar

Answer 8

steroid hormones bind with alpha -globulin then it enter into the tissues through their receptors.

Answer 9

In the nucleus or cytoplasm

Answer 10

by directly protein synthesis