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BIOD 151 Anatomy and Physiology Mastering Questions and Answers Rated A.
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BIOD 151 Anatomy and Physiology Mastering Questions and Answers Rated A.
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BIOD 151 Anatomy and PhysiologyMastering Questions and Answers Rated A.
Which hormone's receptor is always bound to DNA, even when the
receptor is empty?
Correct Answer -thyroid hormone
What keeps intracellular receptors from binding to DNA before a hormone
binds to the receptor?
Correct Answer -chaperone proteins (chaperonins)
What type of hormones bind to receptors located on the cell membrane?
Correct Answer -water-soluble hormones, such as insulin and epinephrine
Which intracellular substance degrades cAMP, thus inactivating the
response to a hormone?
Correct Answer -phosphodiesterase
Growth factor hormones, such as insulin, bind to which type of receptor?
Correct Answer -tyrosine kinase receptors
Which is the correct order of events for hormones activating Gs proteins?
Correct Answer -activation of G protein, binding of GTP, activation of
adenylate cyclase, conversion of ATP to cAMP
Which second messenger causes the release of calcium from the
endoplasmic reticulum?
Correct Answer -IP3
, Which of the following adrenergic receptors increase cAMP levels?
Correct Answer -β receptors
The stimuli causing endocrine glands to secrete their hormones in direct
response to changing blood levels of certain critical ions and nutrients are
called __________.
Correct Answer -humoral stimuli
Which of the following adrenal gland homeostatic imbalances is
characterized by persistent elevated blood glucose levels, dramatic losses
in muscle and bone protein, and water and salt retention, leading to
hypertension and edema?
Correct Answer -Cushing's syndrome
Which of the following hormones helps the body avoid dehydration and
water overload?
Correct Answer -antidiuretic hormone
Which hormone is the body's major metabolic hormone?
Correct Answer -thyroid hormone
Which of the following hormone pairs are antagonists that regulate blood
calcium ion levels?
Correct Answer -parathyroid hormone/calcitonin
Which of the following pairs correctly matches the adrenal gland zone or
area with the class of hormones it produces?
Correct Answer -zona glomerulosa: mineralocorticoids
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