quiz 22 - 1 Marks: 1 What is the role of a second messenger...

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1 Marks: 1 What is the role of a second messenger in hormone action? Choose one answer. a. It informs a gland as to whether its hormones are having an effect. b. It signals a cell to secrete a hormone. c. All of these are true. d. It stops hormone action when it is no longer needed. e. It relays a hormone's message inside a target cell. Correct Marks for this submission: 1/1. Question 2 Marks: 1 Because most chemical signals are unable to pass through the plasma membrane, the cellular action they initiate results from _____. Choose one answer. a. the activation of a signal transduction pathway b. direct stimulation of the cell's DNA c. the enzymatic behavior of the signal molecule d. ligand binding e. binding to intracellular receptors Correct Marks for this submission: 1/1. Question 3 Marks: 1 An example of antagonistic hormones controlling homeostasis is Choose one answer. a. insulin and glucagon in glucose metabolism. b. oxytocin and prolactin in milk production.
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quiz 22 - 1 Marks: 1 What is the role of a second messenger...

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