Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as photo-organotrophs fastidious hetrotrophs chemo-lithotrophs chemotrophs TRUE ANSWER : ? YOUR ANSWER : ?
Lag phase is also known as period of initial adjustment none of these generation time transitional period TRUE ANSWER : ? YOUR ANSWER : ?
Generation time of Escherichia coli is 20 days 20 minutes 200 hours 20 hours TRUE ANSWER : ? YOUR ANSWER : ?
Postgates assay technique is useful in determining if a cell is viable even though it is an obligate aerobe a thermophile too small to see incapable of cell division TRUE ANSWER : ? YOUR ANSWER : ?
Bacteria and fungi multiply best above 38°C none of these below 16°C between 16-38°C TRUE ANSWER : ? YOUR ANSWER : ?
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as photo-organotrophs autotrophs chemotrophs phototrophs TRUE ANSWER : ? YOUR ANSWER : ?
An organism is completely dependent on atmospheric O2 for growth. This organism is facultative anaerobe acidophile osmotolerant obligate aerobe TRUE ANSWER : ? YOUR ANSWER : ?
The term facultative anaerobe refers to an organism that is killed by oxygen doesn't use oxygen but tolerates it requires less oxygen than is present in air uses oxygen when present or grows without oxygen when absent TRUE ANSWER : ? YOUR ANSWER : ?
The term obligate anaerobe refers to an organism that is killed by oxygen prefers to grow without oxygen doesn't use oxygen but tolerates it uses oxygen when present or grows without oxygen when oxygen is absent TRUE ANSWER : ? YOUR ANSWER : ?
Organisms, using organic compounds as electron donors are called phototrophs organotrophs chemotrophs lithotrophs TRUE ANSWER : ? YOUR ANSWER : ?