The small molecule acetylcholine acts to signal different cellular responses in many different cell types, including skeletal muscle cells, heart muscle cells, cells lining blood vessels, liver cells, and pancreatic cells. in each case, there is a membrane receptor that specifically binds acetylcholine. upon binding, acetylcholine triggers a to elicit a specific cellular response.

signal transduction pathway

Explanation:

The signal transduction pathway occurs when a molecule triggers an orderly sequence of chemical reactions within a cell. All of these reactions are mastered by enzymes, after a molecule activates the first reaction through signals or stimuli. Reading the text in the question above, we can see that, after binding, acetylcholine triggers a signal transduction pathway, creating a sequence of reactions, to elicit a specific cellular response.

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the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.