What is a biofilm, and how did it form on the heart valve?

Q: Is staphylococcus epidermidis a halophile?

A: Bacteria grows when they meet the certain requirement like- chemical, physical conditions in their…

Q: What do you call this type of bacterium? How is it structurally different from a spirillum?

A: Bacteria are small single-celled organisms. They are found almost everywhere on Earth and are vital…

Q: What are examples of a bacterium that produces a biofilm ?

A: A biofilm is a complex structure formed by many different bacterial colonies.

Q: How is Thermoplasma able to live in acidic, very hot coal refuse piles when it lacks a cell wall?

A: Thermoplasma belongs to genus Thermoplasma) is a phylum of prokaryotic organisms that means they…

Q: Why does an facaltive anaerobic bacterium usually grow better with oxygen than without?

A: A facultative anaerobe is one which is able to survive in both aerobic (oxygen) as well as anaerobic…

Q: Why are endospore forming bacteria commonly found in soil?

A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…

Q: What is the role of a prophage in persistent infections?

A: A prophage is also referred as bactriophage as prophages are viruses that infects bacteria.…

Q: Why is staining of stool samples very important in identifying parasites?

A: In this question it is to describe that why is staining of stool samples very important in…

Q: What is a selective medium?  What is a differential medium?

A:

Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?

A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…

Q: What is the purpose of the bacterial capsule? Answer in not more than 3 sentences.

A: Prokaryotic calls contain addition protective layer outside of the bacterial cell wall. It is…

Q: What are the species of aerobic bacteria which can be found in chronic wound?

A: Introduction A wound is an injury that occurs quickly and involves lacerated or punctured skin (open…

Q: What is formed when an endospore germinates?

A: Spore formation is very common in bacteria. These spores are non-Motile in nature e.g. Conidia,…

Q: What are examples of disease causing bacteria that presents flagella

A: Introduction:- Bacteria are prokaryotic organisms which do not consist of a well-defined nucleus ,…

Q: What is crypto? Rearrange the microorganism according to their resistance to radiation…

A: Food irradiation is a method of exposing the foods to ionizing radiations which kills the…

Q: What are the species of anaerobic bacteria which can be found in chronic wound?

A: Introduction Anaerobic bacteria are bacteria that do not live or grow when oxygen is present or that…

Q: What is a biofilm? What is the advantage for microbes to form a biofilm

A: A community of microorganisms which are attached to a surface irreversibly is called a biofilm. They…

Q: Why is direct examination of patient samples particularly usefulwhen diagnosing a mycotic infection?

A: The process of performance of direct examination can be done by utilizing the combination of…

Q: What is an algal-bacterial bloom?

A: Microbiology is the study of microscopic organisms such as bacteria, viruses, fungi, archae, and…

Q: Why is it important to determine the number of mesophilic spores in a food ingredient?

A: Sometimes  spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…

Q: what are psychrotolerant bacteria and examples of it.

A: Psychrotolerant bacteria Psychrotolerant bacteria, or those that can grow at temperatures below…

Q: Why would a mold secrete an antibiotic?

A: Antibiotics are substances that are synthesized by microorganisms and can inhibit or destroy the…

Q: What is the function and purpose of listeria innocua cell?

A: Listeria innocua is one of six species which belongs to the Listeria genus. It is commonly present…

Q: Which bacterium reduces nitrates in soil to nitrogen?

A: Nitrogen is needed by the organism for producing amino acids. Atmospheric nitrogen cannot be used as…

Q: Describe a microbial biofilm. Discuss why it is likely that a biofilm contains bacteria with…

A: The unicellular, microscopic organisms that cannot be visualized by the naked eye are known as…

Q: What is the gram reaction and oxygen requirement of fungal eye infection? And how it is transmitted?

A: Fungal eye infection is a rare one but can be very serious. one of the key reasons behind the fungal…

Q: What is selective medium?

A: Description of a selective medium.

Q: What is an algal-bacterial bloom, and how does it happen?

A: a. Algae grow or are attached to animals and they serve as camouflage for the animal. b. It lives as…

Q: Why are most pathogens mesophilic?

A: The mesophilic bacteria include the group that grows at moderate temperature i.e. 20 C to 45 C. The…

Q: Which common hospital pathogen is able to grow abundantly in soap dishes?

A: The most common type of the prokaryotes is bacteria. They are found in every existing environment on…

Q: How does the biofilm growth mode differ from that ofplanktonic cells? Which growth mode better…

A: Biofilm basically refers to the matrix like a thing that helps the cells to stick to one another. It…

Q: What is a suspension of killed pathogenic bacteria known as?

A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…

Q: Which microbe is grown for use as protein – rich food?

A: Proteins are polymers made up of polymers of amino acids, which are structural units. They act as…

Q: Microorganisms that require carbon dioxide for growth are called: * A)Psychrophiles B)Capnophiles…

A: Microbiology is an indispensable subject of biological sciences that concerns the study of microbes…

Q: Why are agar plates incubated upside down?

A: The Petri dish has existed for over a decade, whereas simple, cell-growing equipment remains…

Q: How is Indian ink used to demonstrate Cryptococcus neoformas? What reaction takes place between the…

A:

Q: Why are psychrotrophic bacteria of concern to those in the food-service industry?

A: Psychotrophs are mesophiles. They can grow at a low temperature such as 4℃. And, their optimal…

Q: Why would a psychrophile not be a human pathogen?

A: Microbes are classified according to the temperature range at which they can grow. The development…

Q: What are the 3 types of bacterium that are oxygen dependent:

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: Why is the mold Penicillium economically important?

A: Step 1 Penicillium is a blue or green mold which is a common saprotroph of cold environments growing…

Q: What do Gram positive bacteria generally possess and how will these help them in their virulence?

A: The Factors that are produced by a microorganism and evoke disease are called virulence factors.…

Q: What is a microbial colony and how is one formed?

A: Bacteria are a prokaryotic microbe. Most of the bacteria’s are pathogenic and parasitic living in…

Q: What property of biofilm microbial communitiesmakes them clinically and industrially relevant? Why…

A: Biofilm is a dynamic structure adopted by microorganisms such as bacteria and fungi, and is a…

Q: What are the four basic stages of biofilm formation?

A: The biofilm is a thin mucous layer that is formed by a bacterial colony and a few other…

Q: What do recycle means?

A: The conversion of waste material into the reusable ones is called recycling. The benefits of…

Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.