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Do all hormones need to enter bloodstream to be able to effect a cell?
Wiki User
∙ 15y ago
Yes when they are from distant glands, for example when ADH (synthsised in the posterior pituitary gland) must travel to the kidney. However, some hormones are made on-site, so do not use the bloodstream to travel to their target organ(s)/cell(s).
Wiki User
∙ 15y ago
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What hormones are able to travel through the bloodstream and affect cells throughout distant parts of the body?
Hormones of the endocrine glands.
Hormones are NOT able to what?
Hormones are NOT able to bake a cake.
Which technique removes impurities from the bloodstream because the kidneys are no longer able to?
Dialysis
Are able to travel through the bloodstream and affect cells throughout distant part of the body?
NEUROHORMONES
Hormones is responsible for the body being able to react?
Hormones are responsible for many things including growth, the ability to react to certain situations (e.g. adrenaline), and it induces in emotion and feeling. There are many types of hormones.
What hormones are able to travel through the bloodstream and affect cells throughout distant parts of the body?
Hormones of the endocrine glands.
What are specialized cells in the brain that are able to travel through the bloodstream and affect cells throughout distant parts of the body?
Hormones
Can glass enter the bloodstream?
not really... the piece of glass should be as small as a glucose molecule to be able to get into the blood stream! :D
Hormones are NOT able to what?
Hormones are NOT able to bake a cake.
explain why hormones in the bloodstream are able only to affect target cells/organs and not other cells/organs?
Hormones in the bloodstream are able to affect target cells/organs and not other cells/organs because of selective permeability. This means that hormones are only able to pass through the cell membrane of certain cells and organs, and not through the cell membrane of other cells and organs. The cell membrane of the target cells and organs are specialized to allow the hormones to pass through, while the cell membrane of other cells and organs are not specialized and are therefore impermeable to the hormones. This is due to the presence of receptor proteins on the cell membrane of the target cells and organs. These receptor proteins can bind to the hormones and facilitate their entry into the cell. Since these receptor proteins are not present on the cell membrane of other cells and organs, the hormones are unable to bind to them and therefore unable to cross the cell membrane. In addition, hormones can be broken down by enzymes in the bloodstream, which means they can’t reach their target cells and organs if they are exposed to the enzymes. This further ensures that hormones only affect the target cells and organs, and not other cells and organs. In summary, hormones in the bloodstream are able to affect target cells and organs and not other cells and organs because of selective permeability and the presence of receptor proteins on the cell membrane of the target cells and organs. Other cells and organs do not have these specialized receptor proteins and therefore cannot be affected by the hormones.
Why does a person go through puberty?
To change from a child into a fully functional adult. You need Puberty to do this by releasing hormones into the bloodstream and body that begins the process. The sexual organs develop and the body matures allowing you to reproduce with babies. If Puberty did not happen then you would not be able to reproduce.
What is wrong with you and your hormones?
I would need more detail about why you think something is wrong with you and your hormones to be able to answer this question.
Which technique removes impurities from the bloodstream because the kidneys are no longer able to?
Dialysis
What part of the adrenal glands secrets hormones initiate the fight or flight response?
It pours more adrenalin into your bloodstream. When we take off running - say if a very big, very vicious dog is chasing us - we tend to be able to run like an Olympian. That is the "shot of adrenalin".
Are able to travel through the bloodstream and affect cells throughout distant part of the body?
NEUROHORMONES
Steroid hormones don't need binding receptors why?
Steroid hormones are lipids so are able to diffuse through the membrane without receptors.
Why can an endocrine gland be a great distance from its target tissue organ?
It doesnt have to be a long distance away.. but hormones would be able to reach organ at a long distance since they travel through the bloodstream. And maybe being further away, would be more effiecient since endocrine glands dont secrete into 'direct' pathway.
