Which of the following are ways in which forming a biofilm can make a bacterial infection more difficult to fight off or treat? Choose all that apply.

Q: List three (3) advantages microbes have when living in a biofilm, as compared to planktonic growth.…

A: Some bacteria live in the group/aggregates and form a strong structural network, that provides lots…

Q: You are working in the lab with Streptococcus pyogenes and two other bacteria. You streak all three…

A: The basal,  enriched, bacterial growth medium, named the blood agar medium encourages the growth of…

Q: Give an example of a medically relevant biofilm that forms invirtually all healthy humans

A: Introduction: Biofilm is defined as a community of microorganisms attached to the surface, embedded…

Q: bacterium is grown in an environment with tryptophan added to the medium.  Describe how the bacteria…

A: Tryptopham  is an amino acid and is a necessary ingredient to  synthesise its protein. There are…

Q: Which one of the terms below is NOT a stage in the typical growth curve of a bacterial cell under…

A: A typical growth curve of a bacterial cell under ideal condition in culture generally has four…

Q: When a child skins their knee and neosporin is applied, this reduces the chances of pathogens…

A: Infectious diseases are caused by pathogens like viruses, bacteria, and fungi. They can be…

Q: When a child skins their knee and neosporin is applied, this reduces the chances of pathogens…

A: Neosporin is composed of three antibiotics :bacitracin, neomycin and polymyxin B.It is used for…

Q: Which of the following is present in certain Gram positive bacteria and functions in resistance? O…

A: Ans- b) Spores The most resistant part that is present in gram-positive bacteria is spores as it is…

Q: Match the description to the correct phase in a standard bacterial growth curve. best time to…

A: The proliferation of bacteria into daughter cells is referred to as bacterial growth. The growth of…

Q: The following are critical factors for bacteria to survive EXCEPT? A. Appropriate temperature B.…

A: Bacteria can survive in temperatures that are hotter and colder than mammals, but they thrive in a…

Q: Give 2 examples of biofilms that may form in the human body through medical interventions

A: Gram-Native and gram-Positive bacteria can form biofilm on medical devices. Most common forms are…

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: Which of the following effects is/are caused by formation of aninfectious biofilm?a. disseminated…

A: A typical misinterpretation of microbial living is that microscopic organisms exist as individual…

Q: Bacterial growth depends on many environmental factors, including the temperature of the…

A: The growth of microorganisms is indicated by an increase in the number of microbial cells in the…

Q: During which of the four phases of growth would a gram-positive bacteria be most susceptible to…

A: Bacteria have a growth period of 3-4 days. When data from a complete growth period is gathered, a…

Q: Explain the purpose and phase where cells lose flagella and motility in biofilm formation, and why…

A: There are several steps associated with the biofilm formation. The first step includes adherence of…

Q: Bacterial biofilm was defined for the first time in 1978 as a structured community of microorganisms…

A: Pseudomonas aeruginosa biofilms are able to cause number of chronic diseases and infections in human…

Q: Discuss biofilms with regard to their formation, unique properties, and significance to the…

A: Biofilms as the name suggests are films of living organisms ( microbes ). They are highly…

Q: Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily…

A: A biofilm is thin but a robust layer of mucilage , adhered to a surface like human skin , tooth ,…

Q: Match the descriptions to the terms. There are 4 descriptions to match. You can use a choice more…

A: Bacteria are microbes that are everywhere.

Q: Which of the following is correct about biofilms? O 1) They are comprised only of psychrophiles. O…

A: Biofilms are collective group of organisms that grow together on different surfaces. Bacteria,…

Q: /hich of the following are ways in which forming a biofilm can make a bacterial fection more…

A: Option b.

Q: In a short paragraph explain which is more effective at killing microbes: autoclaving  or freezing.

A: The mechanism of killing microbes is known as sterilization.  The sterilization is an important…

Q: Which of the following statements is true of the bacteria pictured above? (Select all that apply) O…

A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…

Q: Describe the steps in biofilm formation using the words planktonic organisms, quorum, quorum…

A: Biofilm: Biofilm is defined as the complex aggregation of microorganisms on the surface by…

Q: microbial biofilms

A:

Q: Design a concept map on microbial growth that would contain the key features of the following…

A: Controlling microbial growth is essential in many practical situations, and research in this area of…

Q: When heat treatment is used as to control microbial growth, what is the immediate impact of this…

A: Heat treatment to a microbe changes its macromolecules and as temperature increases macromolecules…

Q: Some antibiotics show no zone of inhibition against the microbe. How is this possible? Explain how…

A: Zone of inhibition The Zone of inhibition, it is a area around  the antibiotic drug which inhibit…

Q: Which of the following is not true or related to bacterial capsule formation  A. Rigid and attached…

A: Bacteria are unicellular prokaryotic microorganisms (nucleus is not enclosed in a nuclear membrane)…

Q: Which of the following statements regarding microbial control agents is FALSE?   Question options:…

A: all of these statements are TRUE.

Q: Fill in the blank: Bacteria found in very cold areas are called _________________

A: Bacteria are a type of biological cell which belongs to the prokaryotic domain. Bacteria are the…

Q: Defined the following Pure culture Colony Fill in the spaces : 1- Examples of cultural…

A: A colony of bacteria is made up of millions of identical bacterial cells, each originating from one…

Q: Describe why bacterial biofilms can be a threat to human health.

A: A biofilm can be defined as a surface attached community of micro-organisms embedded and growing in…

Q: If a suspect bacterial pathogen infecting your patient is known to be "fastidious" which medium…

A: Fastidious organism : Any organism that requires a particular nutrient in the media is known as a…

Q: Which of the following is not true about a gram-positive cell wall? It has plasma membrane inside…

A: Introduction :- The Gram-positive cell wall is made up of many interconnected peptidoglycan layers…

Q: Explain how microbial agents A through D in the following diagram compare in effectiveness against…

A: It is used to determine the susceptibility of a given test organism (clinical) against a range of…

Q: Explain the formation of biofilm.

A: Certain microorganisms are capable of producing extracellular polymers that forms a matrix to which…

Q: Bacterial growth depends on many environmental factors, including the temperature of the…

A: The term "aseptic method" refers to a combination of medical practises and procedures that help…

Q: Is the lyophilization process a suitable method for the preservation of all microorganisms

A: preservation of bacterial culture is an important step in microbiology . there are several methods…

Q: Which of the following reports bacteria counts as colony-forming units? Turbidity Most probable…

A: Bacteria are microscopic unicellular organisms that can be grown in culture for the benefit of the…

Q: Bacterial cells are most likely to be affected by antibiotics when they are in this phase of the…

A: Bacterial growth is an orderly increase in the quantity of cellular constituents (e. cell mass) and…

Q: Using a solid line draw a standard bacterial growth curve. Represent all the phases by numbering…

A: Bacterial growth curve is defined as the graph representing the number of viable bacterial cells…

Q: A bacterium is inoculated into a medium containing two carbon sources, one of which is the…

A: If a bacterium is grown in a medium containing lactose and glucose, it will first utilize glucose…

Q: MacConkey lactose agar is a medium that kills all microbes except for gram-negative bacteria, and it…

A: Agar is a galactose-based heterogenous polysaccharide obtained from seaweed(red algae). It is…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."