And Physiology Final
Exam||Questions And Correct
Answers||
Virtually all of the protein or amino acid-based hormones exert their effects through
intracellular __________.
a. ions
b. deactivators
c. second messengers
d. nucleotides -CORRECT ANSWER c. second messengers
Chemical Substances secreted by cells into the extracellular fluids that regulate the
metabolic function of other cells in the body are called ___________.
a. proteins
b. antibodies
c. hormones
d. enzymes -CORRECT ANSWER c. hormones
The master gland of the endocrine system is the_________.
a. endocrine
b. pituitary
c. adrenal
d. thyroid -CORRECT ANSWER b. pituitary
The secretion of hormones in response to changing blood levels of ions is known as
_____.
a. neural stimulus
b. hormonal stimulus
c. humoral stimulus
d. ionic stimulus -CORRECT ANSWER c. humoral stimulus
The hormone that has the greatest effect on the metabolic rate is _____________.
a. growth hormone
b. aldosterone
c. thyroid
d. cortisol -CORRECT ANSWER c. thyroid
,When blood glucose levels fall, the pancreas releases ________.
a. insulin
b. melatonin
c. glucose
d. glucagon -CORRECT ANSWER d. glucagon
When parathyroid hormone is released
a. blood calcium levels fall
b. osteoclasts are activated
c. calcitonin is inhibited
d. calcium channels are blocked -CORRECT ANSWER b. osteoclasts are activated
The cells with the most receptors for growth hormones are
a. liver
b. nerves
c. bones
d. blood vessels -CORRECT ANSWER c. bones
Steroid hormones influence other cells by
a. activating cyclic AMP
b. entering the nucleus of the cell and altering the expression of the gene
c. binding specific receptors and activating G proteins
d. stimulating the uptake of glucose -CORRECT ANSWER b. entering the nucleus of
the cell and altering the expression of the gene
The major plasma protein is
a. thrombin
b. albumin
c. fibrin
d. fibrinogen -CORRECT ANSWER b. albumin
This type of leukocyte produces antibodies
a. neutrophil
b. eosinophil
c. monocyte
d. lymphocyte -CORRECT ANSWER d. lymphocyte
Which of the following is not a phase of erythropoiesis
a. synthesis of hemoglobin
, b. production of vacuoles
c. ejection of the erythrocyte nucleus
d. production of ribosomes -CORRECT ANSWER b. production of vacuoles
Red blood cells contain ___% hemoglobin
a. 50
b. 82
c. 97
d. 100 -CORRECT ANSWER c. 97
Which of the following is not a function of blood
a. controlling endocrine glands
b. transporting oxygen
c. distributing heat
d. producing antibodies -CORRECT ANSWER a. controlling endocrine glands
What organ in the body regulates erythropoeisis?
a. brain
b. kidney
c. pancreas
d. liver -CORRECT ANSWER b. kidney
Which of the following is not a phase of hemostasis?
a. vascular spasm
b. fibrinolysis
c. coagulation
d. platelet plug formation -CORRECT ANSWER b. fibrinolysis
The first phase of erythrocyte production is
a. hemoglobin synthesis
b. ejection of the nucleus
c. ribosome synthesis
d. reticulocyte formation -CORRECT ANSWER c. ribosome synthesis
All blood cells develop from
a. hemocytoblasts
b. ejection of the nucleus
c. myeloid stem cells
d. lymphoid stem cells -CORRECT ANSWER a. hemocytoblasts