Virtually all of the protein or amino acid-based hormones bind to plasma membrane receptors and exert their effects through intracellular ________.
A) calcium
B) second messengers
C) nucleotides
D) deactivating ions - ANSWERB) second messengers
Which of the following is not a category of e...
Virtually all of the protein or amino acid-based hormones bind to plasma membrane receptors and
exert their effects through intracellular ________.
A) calcium
B) second messengers
C) nucleotides
D) deactivating ions - ANSWERB) second messengers
Which of the following is not a category of endocrine gland stimulus?
A) neural
B) humoral
C) hormonal
D) enzyme - ANSWERD) enzyme
Which of the following hormones suppresses appetite and increases energy expenditure?
A) leptin
B) renin
C) follicle-stimulating hormone
D) parathyroid hormone - ANSWERA) leptin
The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on
_______________.
A) the presence of the appropriate receptors on the cells of the target tissue or organ.
B) nothing, all hormones of the human body are able to stimulate any and all cell types because
hormones are powerful nonspecific.
,C) the location of the tissue or organ with respect to the circulatory path
D) the membrane potential of the cells of the target organ - ANSWERA) the presence of the
appropriate receptors on the cells of the target tissue or organ.
Hormones often cause a cell to elicit multiple responses; this is primarily because _____________.
A) activated enzymes, such as protein kinases, can turn proteins "on" or "off" through chemical
modification
B) enzymes are rapidly metabolized into functional amino acids
C) there are thousands of the same receptor on the cell membrane
D) the receptors bind to several hormones at the same time - ANSWERA) activated enzymes, such as
protein kinases, can turn proteins "on" or "off" through chemical modification
Thyroid hormone (a small iodinated amine) uses receptors in a manner similar to ______________.
A) insulin, because insulin is a small peptide
B) growth hormone, because the the thyroid works synergistically with the thyroid hormone
C) steroid hormones, because both use intracellular receptors
D) glucagon, because the structure of glucagon is similar to that thyroid hormone - ANSWERC)
steroid hormones, because both use intracellular receptors
The most important mineralocorticoid regulator of electrolyte concentrations in extracellular fluids is
_______________.
A) cortisol
B) insulin
C) glucagon
D) aldosterone - ANSWERD) aldosterone
Which of the following is not a steroid-based hormone?
A) epinephrine
B) estrogen
,C) cortisone
D) aldosterone - ANSWERA) epinephrine
What ion is sometimes used as a second messenger of amino acid-based hormones?
A) calcium
B) chlorine
C) sodium
D) ion - ANSWERA) calcium
Match the following hormone with its targets:
Growth Hormone (GH) - ANSWERA. bones and muscles
Match the following hormone with its targets:
Follicle stimulating hormone (FSH) - ANSWERC. testes or ovaries
Which blood type is generally called the universal donor?
, A) A
B) B
C) O
D) AB - ANSWERC) O
Which of the following might trigger erythropoiesis?
A) decreased tissue demand for oxygen
B) moving to a lower altitude
C) hypoxia of EPO-producing cells
D) an increased number of RBCs - ANSWERC) hypoxia of EPO-producing cells
An individual who is blood type AB negative can _____________.
A) receive any blood type in moderate amounts preferably without the Rh antigen
B) donate to types A, B, and AB, but not type O
C) receive types A, B, and AB, but not type O
D) donate to all blood types in moderate amounts - ANSWERA) receive any blood type in moderate
amounts preferably without the Rh antigen
Select the incorrect statement regarding blood cell formation.
A) Erythrocytes are formed from erythroblasts
B) platelets are formed from myeloblasts
C) lymphocytes are formed from lymphoblasts
D) eosinophils are formed from eosinophilic myeloblasts - ANSWERB) platelets are formed from
myeloblasts
The plasma protein that is the most abundant in blood and is the major contributor to osmotic
pressure is _______________.
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