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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.
What else can I help you with?
What gland secretes hormones into the bloodstream to affect the sex organs?
The pituitary gland secretes hormones into the bloodstream to affect the sex organs. It releases the luteinizing hormone (LH) and follicle-stimulating hormone (FSH) that regulate the functioning of the testes and ovaries.
What type of hormone acts on neighboring cells without entering the bloodstream?
Paracrine hormones act on neighboring cells without entering the bloodstream. They are secreted by a cell and affect nearby cells by diffusing through the interstitial fluid.
How do circulating hormones differ from paracrines and autocrines with reference to their target cells?
Paracrines are a group of local hormones that work on nearby cells. Autocrines stimulate the same cell and circulating hormones can travel long distances to stimulate cells. Hormones only stimulate cells that have their specific receptor.
The organ system of the body that functions in the secretion of regulatory molecules called hormones is the system?
The endocrine system is responsible for producing and secreting hormones that regulate various bodily functions such as metabolism, growth, and reproduction. Hormones are chemical messengers that circulate in the bloodstream and affect target cells throughout the body.
What system produces chemical signals hormones?
endocrine system
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.
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 such as cortisol, insulin, and adrenaline are able to travel through the bloodstream and affect cells throughout distant parts of the body. They are secreted by endocrine glands into the bloodstream and act on target cells with specific receptors, regulating various physiological processes.
What gland secretes hormones into the bloodstream to affect the sex organs?
The pituitary gland secretes hormones into the bloodstream to affect the sex organs. It releases the luteinizing hormone (LH) and follicle-stimulating hormone (FSH) that regulate the functioning of the testes and ovaries.
Do all hormones need to enter bloodstream to be able to effect a cell?
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).
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 specialized cells in the brain that are able to travel through the bloodstream and affect cells throughout distant parts of the body?
Hormones
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.
What type of hormone acts on neighboring cells without entering the bloodstream?
Paracrine hormones act on neighboring cells without entering the bloodstream. They are secreted by a cell and affect nearby cells by diffusing through the interstitial fluid.
How do circulating hormones differ from paracrines and autocrines with reference to their target cells?
Paracrines are a group of local hormones that work on nearby cells. Autocrines stimulate the same cell and circulating hormones can travel long distances to stimulate cells. Hormones only stimulate cells that have their specific receptor.
Are able to travel through the bloodstream and affect cells throughout distant part of the body?
Yes, substances in the bloodstream like hormones, nutrients, oxygen, and medications can travel throughout the body to affect cells in distant parts. This is how the body regulates functions and delivers essential molecules to different tissues and organs.
The organ system of the body that functions in the secretion of regulatory molecules called hormones is the system?
The endocrine system is responsible for producing and secreting hormones that regulate various bodily functions such as metabolism, growth, and reproduction. Hormones are chemical messengers that circulate in the bloodstream and affect target cells throughout the body.
