Biofilms can be best defined as a collective of one or more types of microorganisms that can grow on many different surfaces. Microorganisms that form biofilms include bacteria, fungi, and protists. These surfaces must be periodically or continuously suffused with water in which biofilms are formed,

Biofilm is the combination of different microbial cells that are attached and grow on the surface. These microbial cells become embedded within a slimy extracellular matrix that is composed of extracellular polymeric substances (EPS), produced by the microorganisms. Microorganisms that form biofilms include bacteria, fungi, protists, etc. Biofilms can be found in a natural and modified environment. It can act as a fundamental unit of wastewater treatment.

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What is biofilm?

Important Questions on Biotechnology and Bioinformatics

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Cotyledons are also called-

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Fill in the blank with the correct answer from the bracket.

Addition of _____ promotes the degradation of cyanide. (protein, sucrose, fat)

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Fill in the blank with the correct answer from the bracket.

_____ is used in the disinfection of water system. (Bacteria, Bacteriophage, Fungus, Algae)

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Which of the following is used in the bioremediation of mercury?

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_____ is the branch of biotechnology that deals with the removal of contaminants or pollutants by using microorganisms.

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Comment on Biofilm.

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Microorganisms such as bacteria can be used in response to pollution incidents. Explain how bacteria can be used in response to an oil spill.

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The mixture of bacteria, saliva and carbohydrates found on teeth is known as plaque. It is a cause of tooth decay (caries). The most common bacteria in tooth biofilms are Streptococcus mutans.

Suggest reasons for the change in thickness of the biofilm over time.

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Write a note on the contamination by mercury.

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Define quorum sensing.

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Describe the effect of bacteriophage on water pipes.

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