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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.
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How do hormones reach the cells they affect?
they travel through the bloodstream
Chemicals that travel through the bloodstream and affect the activities of other cells?
Hormones
What gland secretes hormones into the bloodstream to affect the sex organs?
pituitary gland .
What are chemicals that travel through the bloodstream and affect the activities of other cells?
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 is a chemicals travel through the bloodstream and affect the activities of other cells?
I suppose that you think to oxygen.Oxygen is indispensable for life.
What chemical messenger is released directly into the bloodstream with the ability to affect cells for hours or days?
Hormones
What is the general function of hypothalamic hormones?
they travel through the bloodstream and affect the activities of cells in other parts of the body
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
The bovine growth hormone dairy products kosher?
Yes. The hormones in a cow's bloodstream do not affect its kashrus, or that of the milk it produces.
What are hormones and what are they used for?
Hormones are chemical messengers. They travel in your bloodstream to tissues and organs. They affect many different processes, including growth, development, metabolism, and reproduction. They are secreted directly into your bloodstream by endocrine glands, such as the pituitary, adrenal glands, pancreas, ovaries, and testes.
Can the endocrine system affect cells?
Yes, the endocrine system can affect cells. By secreting hormones into the bloodstream, the endocrine system sends chemical messengers to cells that alter their function.
