Microbiology - Microbes in Aquatic Environment

Exercise : Microbes in Aquatic Environment - Section 1
  • Microbes in Aquatic Environment - Section 1
6.
Which of the following is correct?
Ultramicrobacteria or nanobacteria are the dominant bacteria in marine systems
Ultramicrobacteria or nanobacteria are so numerous that they are a major food source for heterotrophic flagellates
Both (a) and (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
Coliforms are used as indicator organisms because
they are present wherever enteric pathogens are present
a testing procedure with great specificity is easy to perform
both (a) and (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
Hyphomycete fungi
produce nonmotile tetaradiate conidia
grow in leaves and the infected leaves are the preferred food source for some aquatic insects
both (a) and (b)
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
Loss of carbon through the microbial loop in oligotrophic environments is __________ to/than the loss of carbon through the microbial loop in copiotrophic environments.
greater
lesser
approximately equal
half
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
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
microbial loop
Winogradsky column
Redfield ratio
Gibbs free energy
Answer: Option
Explanation:
No answer description is available. Let's discuss.