Answer:
The chemical receptors of cells have been defined as molecular structures to which other molecules considered as chemical messengers (neurotransmitters, hormones and other neuroactive molecules) specifically bind.
Chemical receptors can be located on the plasma membrane into which they insert by crossing it. Membrane domains have been defined for them and also on both sides of the membrane. The one on the external side corresponds to the binding site for messengers that come from other cells, a situation that defines the so-called heteroreceptors. If messengers coming from the cell itself join that site, the so-called autoreceptors are defined.
But chemical receptors can also be located inside cells. They are intracellular receptors and are found in the cytoplasm or in the nucleus. Messages act on them, which due to their chemical nature can cross the plasma membrane, such as steroidal hormones, thyroid hormones and neurosteroids
Explanation:
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The absorption of which of the following is facilitated by the prevalent pH in the stomach
(a) weak acids
(b) weak bases
(c) strong acids
(d) strong bases
Why was Phineas Gage still alive?
Answer:
Phineas Gage died twelve years after the celebrated accident of epilepsy, leaving behind a fascinating legacy, and altering our understanding of the relation between the mind and the brain. Gage's skull has become a relic and is on display along with the famous iron rod at the Warren Anatomical Museum in Boston.
Explanation:
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Answer:
His injuries were severe such that no one believed that he would recover. His family was very much afraid and this made them prepare his coffin while he was still alive due to fear. Fortunately, Gage recovered and apparently started leading a normal life by January 1849.
