Which statement about membrane proteins is incorrect?
a. Channels are water-filled pathways.
b. Channels are not highly selective.
c. Carriers are highly selective.
d. CAMs serve as binding sites for specific ions.
e. Proteins may work in conjunction with carbohydrates to provide recognition of "self."
D
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A patient who has been diagnosed with intussusception has a problem with the ________.
A. gums B. esophagus C. stomach D. intestine
Label I represents which of the following structures?
A) renal papilla
B) renal columns
C) renal pyramid
D) major calyx
E) minor calyx
Parasympathetic stimulation ____ heart rate and ____ the motility in the digestive tract
a. does not affect, increases. b. decreases, decreases. c. decreases, increases. d. increases, decreases. e. increases, increases.
The study of how the body functions is called ________.
A. anatomy B. physiology C. chemistry D. histology E. neuroanatomy