Question about hormone tranport

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huseins
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Question about hormone tranport

Post by huseins » Tue Feb 23, 2010 12:23 pm

I dont really understand what my teacher have said about the hormone transport from the gland..., can anyone help me to understand this topic....? Thanks

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JackBean
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Post by JackBean » Tue Feb 23, 2010 1:17 pm

Are you kidding? Show your work first
about6205.html

What hormone are you talking about? Insulin and testosterone will be probably transported differently...
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

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Post by huseins » Thu Feb 25, 2010 12:09 pm

what about Growth Hormone...?

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mamoru
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Post by mamoru » Thu Feb 25, 2010 3:09 pm

Transported from where to where, exactly? If you mean from the gland to the target tissue, then it is the circulatory system which transports hormones around the body.

If you mean from the inside of the cells in which they are produced, then it would be diffusion through the membrane for steroid hormones and transport vesicles and exocytosis for peptide hormones. Growth hormone is a peptide hormone.

Not to sound like a complete jerk, but this information isn't in the Endocrine System chapter of your textbook?
"Empathise with stupidity, and you're halfway to thinking like an idiot." - Iain M. Banks

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JackBean
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Post by JackBean » Thu Feb 25, 2010 3:13 pm

growth hormones are transported inside the cell?

EDIT
wiki says:
GH acts by interacting with a specific receptor on the surface of cells.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

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mamoru
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Re:

Post by mamoru » Thu Feb 25, 2010 4:11 pm

JackBean wrote:growth hormones are transported inside the cell?

EDIT
wiki says:
GH acts by interacting with a specific receptor on the surface of cells.

Growth Hormone is produced inside the cells of the anterior pituitary gland and then transported by transport vesicles to the membrane and out of the cells by exocytosis.

I was not referring to the function of hormones when they reach their target tissues because the original post was asking about at the gland. This was the operative phrase in my post:
mamoru wrote:from the inside of the cells in which they are produced
"Empathise with stupidity, and you're halfway to thinking like an idiot." - Iain M. Banks

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Post by huseins » Fri Feb 26, 2010 7:42 am

OK...., its very helpful., thanks

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