A Chemically Defined Medium is Often Required to Grow ________

Question

A chemically defined medium is often required to grow ________ bacteria in the laboratory.
A) fastidious
B) non-fastidious
C) acidophilic
D) halophilic
E) microaerophilic

Accepted Answer

Fastidious bacteria have diverse and complex nutritional requirements, hence a chemically defined medium is usually required to provide the exact nutrients and growth factors they need. Non-fastidious bacteria, on the other hand, have simple and straightforward nutritional requirements, and can easily grow on a complex or undefined medium. Acidophilic, halophilic, and microaerophilic bacteria are classified based on their growth requirements for acidity, salt concentration, and oxygen levels, respectively, but not necessarily on the chemical complexity of their growth medium.