Cyanide poisoning quickly leads to death because it blocks the final cytochrome molecule in the electron transport system. Why is this blockage lethal?
A) All hydrogen ion pumps deactivate.
B) NADH molecules cannot give off their electrons.
C) FADH2 molecules cannot give off their electrons.
D) Electrons cannot transfer to oxygen.
E) Coenzyme Q disassociates and becomes nonfunctional.
D) Electrons cannot transfer to oxygen.
You might also like to view...
Of the four "normal" heart sounds, the initial "lubb" sound is heard when the
A. foramen ovale closes. B. semilunar valves open. C. AV valves open. D. AV valves close. E. semilunar valves close.
In which type of bonet tissue are osteons present?
A. Compact bone B. Spongy bone C. Both "spongy bone" and "compact bone" are correct.
Athletes who train at high altitudes increase their red blood cell count, which increases their oxygen supply during exercise. Increased oxygen supply results in
A. reduced ATP consumption. B. increased use of myokinase. C. longer aerobic respiration. D. increased glycolysis. E. longer anaerobic respiration.
Organs contain two or more tissues that work together to perform specific, complex functions.
Answer the following statement true (T) or false (F)