How does a halophile maintain positive waterbalance while growing in a solution high in NaCl?

Q: Which phosphorylation method is/are used by chemoheterotrophs?

A: Organisms that synthesize their own food are referred to as autotrophs and organisms that do not…

Q: What is faculative anaerobe and aerotolerant anaerobe?

A: Prokaryotic organisms require different environmental conditions for their survival. Some…

Q: What is the difference between Dry and Wet Celloidin Method?

A: Celloidin method is a histopathological technique of tissue impregnation and embedding that helps to…

Q: Why are ether-linked lipids in Thermodesulfobacterium unusual?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

Q: What is the water potential (Ψ) of a 0.2 M sucrose solution in an open water bath at 20 °C?

A: Water potential(WP) It is the energy required, per quantity of water to transport an infinitesimal…

Q: How does a chemoorganotroph differ from a chemolithotroph?A chemotroph from a phototroph?

A: Microorganisms are small organism that cannot be seen by unaided eyes. There are numerous…

Q: What are peptones, yeast extract, beef extract, thioglycollate, and agar? Why are they used in…

A: A suitable nutrient medium that provide appropriate biochemical environment and maintains all the…

Q: What are halophiles? Why do Halobacterium sp. Require sodium and potassium ions?

A: They are salt loving organisms. They include both prokaryotic and eukaryotic organisms. Example :…

Q: In a hypotonic solution why would potato stick become crispier?

A: A hypotonic solution has fewer dissolved particles (such as salt and other electrolytes) than normal…

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: What molecular force holds your chlorophyll and solvent together?

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: What is the main barrier that prevents hydrophillic molecules from entering cells?

A: Cells were discovered by Robert Hooke in 1665. A cell is defined as the smallest unit of a living…

Q: Why do some bacteria grow in the presence of salts?

A: Carl woese in 1990, devide living world in three groups or domains Archaea, Bacteria and Eukarya.…

Q: How do I find the amount of substrate consumed using the given concentration of substrate, measured…

A: A standard curve, or calibration curve or calibration line, is a type of graph used in quantitative…

Q: phenazopyridine

A: Phenazopyridine could be a pain reliever that affects the lower a part of your tract (bladder and…

Q: How are the lipids and ribosomes of hyperthermophilesprotected from heat denaturation?

A: Hyperthermophiles are organisms which grow at extremely hot temperature conditions often having…

Q: How do you account for the difference in reaction between fresh and rancid oil?

A: Oil is a naturally occurring ester that is found in both animals and plants. It belongs to a group…

Q: Why is Hydrogen peroxide toxic to cells in high concentrations?

A: Hydrogen peroxide is commonly known as a cell-damaging agent that is produced during the normal cell…

Q: How is a hydride ion different from a hydrogen ion? What is the involvement of both ions in redox…

A: Ions are the charged particles that carry positive or negative charges.

Q: Besides better aeration and mixing properties, what other advantages do stirred tank bioreactors…

A: A bioreactor is a man-made device specially designed for supporting biologically active environment.…

Q: Under what conditions are media typically sterilized in an autoclave?

A: An autoclave is the pressure chamber used to carry out the scientific and industrial processes…

Q: What does the different types of environment have to do with non-halophiles, halophiles,…

A: Halophiles and extreme halophiles are a salt loving organism. Halophiles exist in saline…

Q: Why is 80% alcohol the recommended solvent For the preparation of plant extract?

A: Different plants have different properties due to the differences in their chemical composition,…

Q: Why does turbidity in a cultured media losses its reliability at high cell concentrations?

A: turbidity is used as a measure of cell density within a culture sample.

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: Explain how does selenium act as antioxidant.

A: Cellular metabolism produces free radicals as byproducts that play a vital role in protecting the…

Q: Concerning the pH of the environment and of thecell cytoplasm, in what ways are acidophiles…

A: There are various factors which affects the microbial growth. Intrinsic factors which affects growth…

Q: Why do the leaf disks in the baking soda solution (treatment) begin to float?

A: The baking soda solution used in floating disk photosynthesis demonstration.  Release of Oxygen in…

Q: Which one below is not one of the ways to reduce fouling in organic membranes? *

A: Membrane fouling in almost all membrane processes is normally caused by precipitation and deposition…

Q: Why is scale formation typically only a problem in hot water pipes?

A: Scaling is a deposition process of calcium and magnesium salts.

Q: Why do microorganisms grow more slowly as the pH deviates from their optimum growth?

A: Growth is acheived when bacterium is grown in liquid medium and is subjected for incubation. After…

Q: Which of the following statements is true of chemoautotrophs?

A: Chemoautotrophs are able to synthesize their own organic molecules from the fixation of carbon…

Q: what is the difference between volatile oils and fixed oils in terms of degradation?

A: Oil is a triglyceride that is liquid at room temperature. It is a nonpolar chemical substance that…

Q: What are the advantages of solid media  ?

A: Microbial culture is a method of multiplying microbes by allowing them to reproduce in a…

Q: why does  carotene pigments are most stable at acidic pH, and they began to degrad at a…

A: Carotene pigments are photosynthetic pigments in plants and it is composed of unsaturated…

Q: Differentiate between halophiles and osmophiles. Which type would more likely cause spoilage of jams…

A: The microbes are grouped on the basis of their capability to cope with high osmotic pressure and low…

Q: What is dimethyl sulfoxide used for in plant tissues culture

A: Tissue culture is the in vitro aseptic culture of organs, tissues, cells, or the whole plan under…

Q: Using correct terminology about water activity, explain why making jam is a good way to preserve…

A: As we know most of the microbes thrive well in the presence of water, food, and oxygen. They survive…

Q: What are the applications for aldehydes, gaseous sterilizers, peroxygens, and organic acids?

A: Physical and chemical methods are used to control the microbes. Chemical methods are where chemicals…

Q: Define halophile and facultative halophile.

A: Bacteria are of different types such as eubacteria and archaebacteria. Archaebacteria are…

Q: What are the advantages of enhanced biological phosphorusremoval (EBPR) relative to traditional…

A: Wastewater from the laundry, household detergents which contain phosphate, comes under the category…

Q: What is saponification? How can we make soap? What is the reaction involve in making soaps? Whats…

A: Soaps and detergents are commonly used in cleaning clothes, utensils and other dirty surfaces.…

Q: What concentration of ethanol is considered optimum for disinfectant? Why not 100%?

A: Disinfectant refers to the chemical agents that destroy or inactivate microorganisms on an inert…

Q: What is the most accurate method for the determination of acid insoluble lignin in a lignocellulosic…

A: The structural material of most of the plant support tissue is made up of lignin which is a very…

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.