MICROBES IN AQUATIC ENVIRONMENT QUIZ

Hyphomycete fungi

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

both (a) and (b)

None of these

produce nonmotile tetaradiate conidia

TRUE ANSWER : ?
YOUR ANSWER : ?

Removal of solids is generally considered as a

Secondary treatment

Tertiary treatment

Primary treatment

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

All of the following species are considered coliforms except

Enterobacter aerogenes

Salmonella typhi

Klebsiella pneumoniae

Escherichia coli

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical precipitation of phosphorus is

secondary treatment

tertiary treatment

primary treatment

both (a) and (b)

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate of flux of oxygen in air is __________ to/than the rate of flux of oxygen in water.

greater

half

approximately equal

lesser

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

lesser

greater

half

approximately equal to

TRUE ANSWER : ?
YOUR ANSWER : ?

Activated sludge undergoes

any of these

Primary treatment

Secondary treatment

Tertiary treatment

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.

approximately equal

lesser

greater

half

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

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

Escherichia

Chlorobium

Rhodospirillum

Clostridium

TRUE ANSWER : ?
YOUR ANSWER : ?

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