Which of the following statements about Neisseria gonorrhoeae is FALSE?
A) It causes disease in humans only.
B) The gonococci stick to epithelial cells via fimbriae and capsules.
C) The gonococci secrete a protease that destroys secretory IgA.
D) The gonococci induce lasting immunity.
E) Infected women are often asymptomatic.
D
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During exercise, which pathway produces the
most energy?
a. lactate fermentation b. anaerobic respiration c. aerobic respiration d. use of stored ATP e. all of these produce the same amount of energy
The placenta ____
a. forms from endometrial and extraembryonic tissues b. will cover about one-half of the inner uterine surface at full term c. intermingles fetal blood with maternal blood d. secretes only estrogen to maintain the uterine lining during the second and third trimesters e. secretes only progesterone to maintain the uterine lining during the second and third trimesters
Which of the following statements about the protein calmodulin is TRUE?
It interacts directly with the ligand receptor. It interacts directly with the G protein. It binds to Ca 2+ ions to mediate a cellular response. It binds to the Ca 2+ ion channel causing it to close. It induces ATP hydrolysis.
The protein coat of a virus is called the:a
capsule. b. capsid. c. exospore. d. phage. e. pilus.