Which of the following is a tract?
a. pyramids
b. pons
c. grey commissure
d. superior colliculi
Answer: a. pyramids
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Which of the following is a function of the membrane proteins called channel proteins?
A) They bind to specific extracellular molecules to trigger a cellular change. B) They permit the passage of ions, bypassing the lipid portion of the cell membrane. C) They are enzymes. D) They serve as anchors or stabilizers for the cell membrane. E) They are used as a source of energy.
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.
What are the functions of the bulbo-urethral glands?
A) Bulbo-urethral glands produce about 60 percent of the volume of semen. B) Bulbo-urethral glands produce the antibiotic protein, seminalplasmin. C) Bulbo-urethral glands produce testosterone. D) Bulbo-urethral glands produce inhibin. E) Bulbo-urethral glands produce mucus that neutralizes acid in the urethra and lubricates the penis.
During the absorptive state, the body makes use of stored nutrients for energy
Indicate whether the statement is true or false.