Question 4 Which of the following is a function of a secondary messenger? A It assists in the induction of a physiolopical respoase in a cell or a tissue. ® It carries a message from the receptor to the inside of a cel. Both of these are the functions of a secondary messenger. O Neitber of these are fuactions of a secoudary messeager. Question 5 Identify an example of a neural transmission in animals. A regulation of the blood sugar level in the body contraction of blood veseb in respose to the secretion of vasopressia by the posterior pituitary gland communication between the eyes and the brain binding of adrenalise to specific receptors in liver cells Question 6 Which of the following compounds acts as a stimulant of acetylcholine receptors when given in low doses? A donepezil B sicotine opiate D sone of these Question 7 Which of the following inhibitors of acetylcholinesnerase was used in poisoned arrows by the Amazon Indians? A) curare B sicotine succiayicholise BOne of these

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