Q: Why did we soak our root nodules in bleach or alcohol before isolating rhizobia from them?
A: INTRODUCTION Rhizobia : It is a nitrogen fixing bacteria seen in plants.
Q: write a brief note on bacterial growth in sugarcane juice
A: Sugarcane juice: Sugarcane (Saccharum officinarum) is a perennial grassy plant that belongs to the…
Q: Explain whether the MacConkey agar plate inoculated with good water would show the presence of…
A: Water contamination is the presence of unwelcome particles in the water. Water bodies may become…
Q: Which product of Apiculture is used in cosmetics and polishes?
A: Apiculture is the scientific method of rearing honeybees for their economic values. Thus, apiculture…
Q: What growth factor is often supplied for cultivation of fastidious bacterial pathogens?
A: A fastidious organism requires specific nutrients for growth. In microbiology, the culture medium…
Q: Why is agar production more costly than carrageenan production
A: As there is difference is between other production and carrageenan production basically the key…
Q: Discuss the use of phenols as germicides
A: Phenols are used as disinfectants and germicides to clean surfaces in the hospital and rooms.
Q: What is germicide used to kill?
A: A substance or specialist that kills germs, particularly pathogenic microorganisms; a disinfectant.…
Q: What kinds of organisms are used in coculture withSyntrophomonas?
A: Syntrophomonas is a gram negative bacteria belongs to Syntrophomonadaceae family. This bacteria…
Q: what is the present microorganisms in soft swell spoilage?
A: Canning is a type of food preservation method, which includes the preservation of food in air tight…
Q: how can you use the unique characteristics of Listeria monocytogenes to produce a growth medium that…
A: Selective media contains those nutritional factors which will provide the growth of only desired…
Q: What are the benefits and dangers of H. Pylori?
A: Helicobacter pylori (H. pylori) also known as Campylobacter pylori is a bacteria (gram-negative)…
Q: If the steps involving yeast inoculation are not done in vinegar, what would happen to the process?…
A: Fermentation is an anaerobic process which uses enzymes to cause chemical changes in organic…
Q: What are the microbes used in fermentation of products?
A: Food products contain many types of microbes transmitted either through the soil, plants, animals,…
Q: What is the laboratory's policy in decontaminating the plates? Since the growth of H. pylori was…
A: Routine decontamination of lab countertops or paintings areas needs to occur frequently. Lab benches…
Q: Can a spoilage microorganism cause foodborne illnesses? Why or why not?
A: Illness caused by food contaminated with bacteria, viruses, parasites or toxins are called food…
Q: How can you use the characteristics of L.monocytogenes to produce a growth medium that is both…
A: Listeria monocytogenes is a Gram-positive, facultative intracellular bacteria that can cause human…
Q: Why can it be said that N. equitans is both a carbon and anenergy parasite?
A: Introduction: Nanoarchaeum equitans is a hyperthermophilic obligate symbiont that grows in…
Q: Does pasteurisation effectively kill all the miroorganisms in milk? If not, why is it used?
A: Pasteurisation includes warming fluids at high temperatures for short measures of time.…
Q: why macconkey agar and mannitol salt are regard as salective and deffrental medium?
A: A culture medium is just water and nutrients that support microbic growth. Primary culture media for…
Q: What claims does Garcinia Cambogia extract make for the body
A: 1. Garcinia cambogia is cultivated in parts of Africa, Indonesia, india, Sri Lanka and Malaysia. 2.…
Q: Explain in how did Candida intermedia contaminate raw milk?
A: Candida is a yeast genus that is responsible for the majority of fungal infections globally.…
Q: Show a concept map about the aseptic technique on Transfer from Broth to Broth Culture, Transfer…
A: Aseptic techniques or sterile techniques are procedures that ensure proper handling and conduction…
Q: If the inoculation of yeast during the process of vinegar making are not done, can we still produce…
A: Vinegar is nothing but acetic acid which is present in aqueous state. This can be used as flavouring…
Q: Name the bacterium which is responsible for conversion of milk into curd.
A: The bacterial fermentation is a type of metabolic pathway which involves the bacteria. Milk consists…
Q: What are the conditions necessary for fixation of atmospheric nitrogen byRhizobium. What is their…
A: The atmospheric nitrogen is fixed by the bacteria found in the soil in symbiotic association with…
Q: hat source do bacteria obtain their mineral elements like Ca, Fe, etc. in nutrient b
A: The microscopic organisms not visible with the naked eye are known as the microorganisms. These…
Q: What is the sign of ethylene poisoning in a callus culture
A: When the tissues on culture create an unorganized mass of the callus without regular form, it is…
Q: Making meduim as rich as possible by providing all possible nutrients in great excess does not…
A: Culture media is a general term that is used to denote any artificially made gel or liquid based…
Q: How might Campylobacter contamination of food productionanimals be controlled?
A: Campylobacter infection is caused by Campylobacter bacteria. It is the most common bacterial cause…
Q: Gossypium spp. are the source of which of the following? O wool O jute O rayon cotton O linen
A: Various types of fibers are utilized for making clothing. These fibers can be obtained from plant or…
Q: how do microorganisms contribute to spoilage of coconut water
A: coconut water is a highly nutritive media having different components like carbohydrates , lipids ,…
Q: What effect do fungicides have on fungicides?
A: Fungi is group of eukaryotic organism which can be either single celled or complex multi cellular.…
Q: Which chemical was the least effective for inhibiting the growth of S. aureus? Of P. aeruginosa?
A: In order to help avoid health related infections (HAIs), antimicrobial disinfectants are used as key…
Q: parasitic nutritive strategy is used by which organisms?
A: In an ecological niche, there is no such habitat where only one species can survive alone. Every…
Q: Garcinia Cambogia extract What claims does it make? How does it claim to work?
A: 1. Garcinia cambogia is cultivated in parts of Africa, Indonesia, India, Srilanka and Malaysia. 2.…
Q: how can the microbiological quality of palm wine be enhanced?
A: it is commonly known that palm wine fermentation consists of an initial lactic acid fermentation by…
Q: What causes the symptoms of staphylococcal foodpoisoning? Why are cases of staph food poisoning…
A: Given: What causes the symptoms of staphylococcal food poisoning? Why are cases of staph food…
Q: What advantage might soil bacteria and fungi gain from the synthesis of antibiotics?
A: Antibiotics are substances that work against bacteria. It helps in fighting infections caused by…
Q: How is the medium (Mitis Salvarius agar) selective?
A: Mitis Salviarius agar is used to differentiate among species of Streptococcus and the very close…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. O pink. O…
A: Colonies that produce alkaline waste on Hektoen enteric agar will turn blue- green.
Q: What is with broth that made it an optimum specimen for Francisco Redi for his experiment to prove…
A: By doing a simple experiment, Francisco Redi revealed that flies do not emerge spontaneously from…
Q: What are the health effects of mould and air spores?
A: Mould belongs to phylum fungi. It produces spores. It grows in conditions like darkness and…
Q: How do the processes of nitrification and denitrification differ?
A: Both denitritification and nitrification are important processes for nitrogen balance in ecosystem…
Q: 30. The optimum temperature for the growth of Mycobacte A. 25°C 8. 30°C C. 35°C D. 37°C E. 40°C
A: Mycobacterium tuberculosis is the bacteria that causes tuberculosis. TB germs are most commonly…
Q: How does lowering the temperature 15°C from the optimal growth temperature affect growth rate
A: Growth is dependent on many factorsl. The first and foremost being the nutrient substances an…
Q: What is Bt cotton??
A: A GMO or genetically engineered organism is the outcome of recombinant DNA technology or RDT that…
What is the most noticeable effect of the germicides to the germs?
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- What kinds of organisms are used in coculture withSyntrophomonas?Which micronutrient is added last during Parenteral Nutrition (PN) compounding as it shortens the BUD of the PN solution? A) Elecrtolytes B) Iron C) Multivitamins D) Trace ElementDoes the rosemary and authetic spice show bacterial growth? Explain why or why not