MAGADHA EMPIRE QUIZ

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

membrane filtration

Winogradsky

TRUE ANSWER : ?
YOUR ANSWER : ?

Members of all of the following genera of bacteria typically are found in a maturing Winogradsky column except

Clostridium

Rhodospirillum

Escherichia

Chlorobium

TRUE ANSWER : ?
YOUR ANSWER : ?

Activated sludge undergoes

Primary treatment

Secondary treatment

any of these

Tertiary treatment

TRUE ANSWER : ?
YOUR ANSWER : ?

The amount of oxygen dissolved in hypolimnion water in the winter is __________ to/than the amount of oxygen dissolved in hypolimnion water in the summer

half

greater

approximately equal to

lesser

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

Winogradsky column

Gibbs free energy

microbial loop

Redfield ratio

TRUE ANSWER : ?
YOUR ANSWER : ?

The sulfur pearl of Namibia, Thiomargarita namibiensis

Both (a) and (b)

stores high concentrations of nitrate in a huge internal vacuole which takes up 98% of the organisms volume

is the worlds smallest bacterium

is the worlds largest bacterium

TRUE ANSWER : ?
YOUR ANSWER : ?

The Redfield ratio is an index of concentration of

nitrogen, potassium and iron

carbon, phosphorous and sulfur

carbon, hydrogen and oxygen

carbon, nitrogen and phosphorous

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical precipitation of phosphorus is

tertiary treatment

both (a) and (b)

secondary treatment

primary treatment

TRUE ANSWER : ?
YOUR ANSWER : ?

Hyphomycete fungi

produce nonmotile tetaradiate conidia

grow in leaves and the infected leaves are the preferred food source for some aquatic insects

None of these

both (a) and (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

Removal of solids is generally considered as a

None of these

Primary treatment

Secondary treatment

Tertiary treatment

TRUE ANSWER : ?
YOUR ANSWER : ?

↑