Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except Clostridium Escherichia Chlorobium Rhodospirillum TRUE ANSWER : ? YOUR ANSWER : ?
The sulfur pearl of Namibia, Thiomargarita namibiensis is the worlds largest bacterium is the worlds smallest bacterium Both (a) and (b) stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume TRUE ANSWER : ? YOUR ANSWER : ?
Because it can be used with a variety of media and allow a resuscitation step the __________ technique has become the common and often preferred method of evaluating the microbiological characteristics of water. most probable number MUG Winogradsky membrane filtration TRUE ANSWER : ? YOUR ANSWER : ?
Activated sludge undergoes Primary treatment Secondary treatment Tertiary treatment any of these TRUE ANSWER : ? YOUR ANSWER : ?
Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments. lesser greater half approximately equal TRUE ANSWER : ? YOUR ANSWER : ?
All of the following species are considered coliforms except Salmonella typhi Escherichia coli Klebsiella pneumoniae Enterobacter aerogenes TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following species in water reveal the presence of fecal pollution of human or animal origin? Fecal Streptococci Clostridium perfringens E.coli All of these TRUE ANSWER : ? YOUR ANSWER : ?
Coliforms are used as indicator organisms because None of these both (a) and (b) a testing procedure with great specificity is easy to perform they are present wherever enteric pathogens are present TRUE ANSWER : ? YOUR ANSWER : ?
Metabolism of dissolved organic material released by phytoplankton allows heterotrophic bacteria to become part of the particulate organic matter that is passed up the food web to be metabolized and released as mineral elements and CO2 at each transfer. This sentence describes the Redfield ratio Winogradsky column microbial loop Gibbs free energy TRUE ANSWER : ? YOUR ANSWER : ?
Trickling filter comes under none of these secondary treatment primary treatment tertiary treatment TRUE ANSWER : ? YOUR ANSWER : ?