An upregulated cell has an increase in
A. the number of receptors available for binding.
B. the concentration of ligands that bind to the receptors.
C. the amount of DNA in the nucleus.
D. the number of molecules the cell secretes.
Answer: A
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In a patient with decreased production of plasma proteins, which of the following would be TRUE?
A. Less fluid than usual will flow out of the capillary based on the osmotic pressure. B. More fluid than usual will flow out of the capillary based on the hydrostatic pressure. C. Less fluid than usual will flow out of the capillary based on the hydrostatic pressure. D. More fluid than usual will flow out of the capillary based on the osmotic pressure.
Adrenocorticotropic hormone (ACTH) ________
A) causes the release of hormones from the adrenal medulla B) is secreted by the posterior pituitary C) is not a tropic hormone D) secretion is regulated by a hypothalamic regulatory hormone
Which neurotransmitter excites skeletal muscle and inhibits cardiac muscle?
A) Acetylcholine B) Norepinephrine C) Dopamine D) ?-endorphin E) Histamine
Suppose that you were involved in an automobile accident and suffered a back injury. When examined by your physician you are told that you have a slipped disc in the lower back. Because you have now taken this class you know what tissue is involved. It is
A. bone. B. fibrocartilage. C. adipose tissue. D. elastic cartilage. E. dense regular connective tissue.