Biology Exploring Study Set 1

Biology

Quiz 43 :

Control of Animal Processes: Endocrine Control

Quiz 43 :

Control of Animal Processes: Endocrine Control

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What type of regulation occurs when a cell releases chemical signals into the extracellular fluid to affect cells?
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C

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Why do some individual hormones have multiple effects on different target tissues?
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B

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Suppose that hormone A binds to intracellular receptors in its target tissue. Also suppose that as a result of hormone A, the target tissue is now sensitive to or responsive to hormone B. What was the action of hormone A?
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C

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Which types of hormones enter cells and have primary action to either increase or decrease mRNA production?
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Which hormone is correctly paired with its target tissue?
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What do the products of endocrine glands do?
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Which chemical(s) can associate with any type of hormone?
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Oxytocin is a hormone that is involved with increasing contractions during childbirth. The action is binding to membrane receptors and the result is increasing sodium and calcium. What is oxytocin most likely to be in structure?
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A hormone is hydrophobic and binds to membrane receptors. What type of molecule is this hormone most likely to be?
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What is an important functional role of the endocrine system?
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Which term refers to a cell or tissue that has a receptor for a hormone?
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Which of the following affects the pituitary gland most directly?
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What triggers the transition to mating behaviour in bull elks?
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Suppose that the anterior pituitary secretes more ACTH, leading to more glucocorticoids in plasma, which causes the anterior pituitary to then secrete less ACTH. What is this type of hormonal control an example of?
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Target tissues often have receptors for multiple hormones. What does the response of the target tissue depend on?
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What term refers to the joint actions of insulin and glucagon?
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Hormone action is associated with small quantities of hormones producing profound responses in target tissues. What is this type of response?
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Suppose that your job is to determine if a steroid hormone is having an effect on its target tissue. What would be an indication of activation of the target tissue by the hormone in question?
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Which organ system controls activities that involve slower, longer-acting responses of multiple tissues or organs?
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Which sequence presents hormone action in the correct order?
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