Question

An organism that can survive in a solution of pH 9 or above would be considered a(n) ________

A. Extremophile

B. Prokaryote

C. Superbug

Answer 1

Answer - Extremophile.

Explanation - Extremophiles are organisms which can tolerate or survive in extreme environmental conditions. The extreme conditions includes high or low temperature, high acidity, high alkalinity, high pressure, desiccation, high salinity etc. On the basis of these extreme conditions, extremophiles are classified into different groups. Some of the extremophile groups are follows :-

Barophiles - in extreme pressure

Xerophiles - desiccation

Halophiles - salinity

Thermophiles - high temperature

Acidophiles - acidity

Alkaliphiles - alkaline

So the organism live in pH 9 or above is a Alkaliphile. Alkaliphile is defined as the Extremophile which can survive in a pH of 8.5 to 11. So the organism in question is an Alkaliphile in the group Extremophile.

Prokaryote - A micro organism in which nucleus is not bounded by nuclear membrane and also have non membrane bound cell organelles.

Superbug - A microorganism which can resist commonly used antibiotics. It may be bacteria, fungi, virus or other pathogens.