What is the final electron acceptor in the electron transport chain?
A) pyruvate B) oxygen C) carbon dioxide D) acetyl-CoA
Answer: B
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The type of epithelium found lining the trachea is
A) simple squamous. B) simple cuboidal. C) stratified squamous. D) transitional. E) pseudostratified columnar.
You would normally expect to find ____________________ in the outer layer of skin.
A) simple squamous epithelium B) simple cuboidal epithelium C) stratified squamous epithelium D) transitional epithelium E) simple columnar epithelium
A friend just started taking Zoloft (an SSRI) and is experiencing an upset stomach and diarrhea. Your friend asks if the drug is causing her symptoms and you respond:
a. Yes, because the drug is irritating her stomach lining and that explains her symptoms. b. Yes, because serotonin is located both in the brain and the digestive tract, so the drug is altering digestive system functioning. c. No, because the drug is supposed to elevate mood and affect brain function, and it shouldn't have any effect on the digestive system. d. No, because the drug is quickly absorbed from the digestive tract and does not remain in the digestive system long enough to have any effect there.
Which of these is not found in the karyotype of a normal human male?
A) 92 DNA molecules B) 46 chromosomes C) 46 chromatids D) 23 pairs of homologous chromosomes E) X and Y chromosomes