Tetrodotoxin is a potent poison, produced by some newts, pufferfish, and blue-ringed octopus that affects sodium transport involved with the voltage gates in neurons. A friend swimming in the Caribbean is pricked by a pufferfish and gets very sick. The most likely action the poison takes is
A. Mimicking an antiporter and allowing sodium to rush out.
B. Blocking a symporter and keeping sodium from rushing in.
C. Blocking an antiporter so sodium cannot rush in.
D. Mimicking a symporter and allowing sodium to rush out and potassium to rush in.
Answer: C
You might also like to view...
Where does spermatogenesis occur?
A. vas deferens B. ovaries C. lobules of the testes D. bulbourethral gland E. urethra
The specialization of stem cells into various cellular types is called ________
Fill in the blank(s) with correct word
Which cell type is the largest agranular white blood cell, mature as they leave the circulatory system, and increase cell levels due to chronic infections and inflammation, autoimmune disorders, and certain cancers?
A) mast cells B) monocytes C) natural killer cells D) lymphocytes E) dendritic cells
Gravitational equilibrium is responsible for detecting up and down movements of the head.
Answer the following statement true (T) or false (F)