Question

Why the bacterium Treponema pallidum is difficult to culture?
A. Because it requires a great deal of water to reproduce
B. Because it is unable to use carbohydrates as an energy source
C. Because it lacks the genes needed for TCA cycle and oxidative phosphorylation
D. Because it requires extremely low temperature at which water freezes

Answer 1

answer is c part
because it lacks the genes needed for TCA cycle and oxidation phosphorylation

Answer 2

option C..............