Research 2 examples of cell communication in the human body. For each example identify the following...

Research 2 examples of cell communication in the human body. For each example identify the following components of the signaling pathway: signal, receptor, messengers, output effects

Expert Solution

Example 1: Acetyl choline signalling pathway in synapses(paracrine pathway)

Signal : Action potential travelling through the neuron reaches the axon terminal, there is depolarisation and opening up of voltage gated calcium channels and influx of calcium

Messenger : Acetyl choline stored in the synaptic vesicles in terminal end of axon

Receptor :Acetyl choline receptors on muscles

Output effect :Muscle contraction

Example 2 : Insulin signalling pathway (endocrine pathway)

Signal :Increased blood glucose binds to GLUT 2 receptors in pancreatic beta cells and causes closing of potassium channels and opening of calcium channels which further causes release of insulin

Messenger : Insulin released from pancreatic beta cells

Receptor :Insulin receptor tyrosine kinase in liver, muscle, adipose tissue

Output effect : Conversion of glucose to glycogen in liver, glucose to fat in adipose tissue, glucose to amino acids.

gladiator answered 2 years ago

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