Differentiate between halophiles and osmophiles. Which type would more likely cause spoilage of jams and jellies?

Q: Simply explain how saponins function as detergents?

A: Saponins are a type of natural compound that is present in various plants that has a number of…

Q: Where are extreme halophiles found, and what is unusual about their cell walls and growth…

A: Extreme halophilic archaea or haloarchaea  are the group of microorganisms that thrive in the…

Q: When would you expect to see the E. coli produce the enzyme beta galactosidase if the growth media…

A: In prokaryotes such as E.coli have controlled gene expression by controlling the rate of…

Q: Which organism(s) would likely be classified as an alkaliphile?

A: The pH is a negative logarithm of the hydrogen ion concentration. It measures how many hydrogen ions…

Q: Explain the purpose of thiosulfate in the medium.

A: Culture media is used to enrich the number of bacterial growth, to select certain bacteria and…

Q: What is sterilization? Give specific examples of media which are sterilized by the following…

A: All microbes, such as bacteria, virus, and fungi, requires some essential nutrients for growth. The…

Q: Would an obligate anaerobe or an obligate aerobe be more likely to produce catalase? Why?

A: Introduction :  obligate anaerobes are those bacterium that can live only in the environment…

Q: List 5 physical methods of controlling microbial growth, and give an example of each. Why is moist…

A: Heat is one of the best and commonly used physical methods to control microbial growth. By heating…

Q: Why does motility media contain a lower amount of agar than ordinary agar?

A: Agar is a phyco-colloid polymer of galactose monomers obtained from red algae (Gelidium and…

Q: Would you expect a heterotrophic organism to grow in an inorganicsynthetic medium? Explain.

A: A heterotrophic organism is an organism that feeds on other animals or plants for nutrition and…

Q: Why is resazurin a useful media additive for the study of anaerobes?

A: Resazurin is a weakly fluorescent, non-toxic, redox-sensitive phenoxazine dye which has a…

Q: ing is a recipe for a bacterial growth medium: 35 g Dextrose, 12 g Aga 1.2g Salt, 3 g Yeast cell…

A: Growth medium can be of many types. Growth media is a media which contains nutrients for chemical…

Q: In an epoxidation lab, why is it important to continue stirring vigorously in order to get a good…

A: The addition of oxygen to the carbon-carbon double bond is known as the epoxidation reaction. The…

Q: True or False: Alkalinophiles live best in acidic conditions.

A: Acidophiles, are microorganisms that thrive in acidic environments, such as acid mine drainage or…

Q: Consider that leaves are added to a soil. The compound in the leaves that is most resistant to…

A: Decomposition is process of decaying of materials.

Q: In some cases, why does a chemical is more effective as a microbicide  when it is diluted rather…

A: An antimicrobial is an agent that kills microorganisms or stops their growth. Antimicrobial…

Q: How would the pH of the culture medium be influenced by sugar fermentation? By urea hydrolysis?

A: Microorganisms grow well at their optimal pH. The concentration of hydrogen ion affects the growth…

Q: What kind of ion exchange resin would be most effective for purifying RNA molecules, an anion…

A: The purification of RNA molecules is a critical step in many molecular biology and biotechnology…

Q: Media is TGA explaining based on what kind of microorganisms it allows to grow?

A: TGA is a complex media based upon its chemical composition. Complex media are the media in which the…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.