In response to tissue damage and infection, circulating proteins called pyrogens
A) cause inflammation.
B) produce a fever.
C) activate complement.
D) opsonize pathogens.
E) activate antibodies.
Answer: B
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The proximal convoluted tubule is lined with a
A. cuboidal epithelium with a large surface area. B. simple columnar epithelium with a slick smooth surface. C. stratified squamous epithelium with a large surface area. D. stratified squamous epithelium with a tough, durable surface. E. simple squamous endothelium that makes a slick surface.
Select the incorrect statement about the smooth ER
a. It is abundant in most cell types. b. It is found in liver cells. c. It specializes in lipid metabolism. d. In one type of cell, it is called sarcoplasmic reticulum. e. It does not contain ribosomes.
Which of the following would NOT cause secondary amenorrhea?
a. being born without functional ovaries b. drastically reduced levels of body lipids c. severe depression d. extreme weight loss
The type of receptor that readily adapts to a stimulus is known as a ________ receptor.
A. multimodal B. phasic C. tonic D. transducer