Which of the following metabolic pathways can proceed in the absence of oxygen?
A. glycolysis
B. oxidative phosphorylation
C. Krebs cycle
D. the breakdown of fatty acids to CO2 and H2O
E. None of the choices are correct.
A
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Which of the following statements about the Na+-K+ ATPase pump is false?
A. It binds to, and hydrolyzes, ATP. B. It transports Na+ and K+ in a 1:1 ratio. C. It is constantly active in all cells. D. Its activity requires the expenditure of metabolic energy. E. It transports Na+ out of cells and K+ into cells.
Muscles are only able to pull, they never push
Indicate whether the statement is true or false
If the anterior compartment of the lower limb was suffering from "compartment syndrome," which of these structures would not be at risk of injury?
A) tibialis anterior B) vastus lateralis C) rectus femoris D) biceps femoris E) femoral artery
Well-developed mentalis muscles result in ________.
A. a dimple in the chin B. chubby cheeks C. creases in the cheeks D. a wonderful smile E. crow's feet wrinkles