In the production of sauerkraut, a natural succession of lactic acid bacteria is observed growing in the product. What causes the succession? What does this tell you about the optimal growth conditions of the different species of lactic acid bacteria?

Q: You have 2 organisms, A and B. One is an obligate aerobe and the other is an obligate anaerobe. You…

A: Microorganisms are categorized based on their oxygen requirement: Obligate aerobes Obligate…

Q: Explain the graph below. Which group likely had more substrates (sugar and nitrogen)? Describe the…

A: Yeast is a single-cell organism called Saccharomyces cerevisiae, which needs nourishment, warmth,…

Q: Trichonympha and other microbes supply cellulase, the enzyme needed to break down cellulose, which…

A: Cellulose is a polymer of glucose. It is a tough, water-insoluble polysaccharide found widely on…

Q: A batch reactor was initially filled with organic substrate (S0) with an equivalent concentration of…

A: Bioreactor is the equipment used for the production of biomass. Cells consume substrate and multiply…

Q: The figure above shows succession in an ecosystem. What organisms are found in the climax community…

A: The steady and orderly transformation of an ecosystem caused by the gradual replacement of one…

Q: Citrate Broth and Citrate Agar are a type of media that is not described in this lab. However,…

A: Citrate media is a type of microbiological growth medium used to cultivate and maintain bacterial…

Q: Considering what you know about molds and yeasts, why do you think that we do not use the same…

A: Both the mold and the yeast they have the  microscopic functioning. Earlier, they were to be  part…

Q: What organism is involved in the production of Swiss cheese,and what products does it make that help…

A: Swiss chesee is found in solid form and will be stored at low temperature. The production of Swiss…

Q: Switchgrass is used for ethanol production. The composition of the switchgrass is 37% cellulose, 24%…

A: Lignocellulosic Sugar Production:Glucose: 370 kgXylose: 240 kgGalactose: 30 kgArabinose: 40…

Q: In which of the following foods are microorganisms involved in their production? Coffee Chocolate O…

A: Microorganisms contaminate food throughout the process, from harvesting to preparation to…

Q: 3. Describe the relationship between the concentration of sucrose and the rate of osmo- sis? Use…

A: The ease with which a molecule can flow through a cell membrane is referred to as "permeability".…

Q: Why do three medium types contain nutrients such as peptone, try prone or soytone?

A: Bacteria, molds and yeast that exists in nature can also be grown in laboratory. Including water,…

Q: Make a hypothetical graph showing the growth progression of lactic acid bacteria and coliforms in a…

A: Burong mustasa is a traditional Filipino dish produced by fermenting mustard leaves and stems…

Q: Discuss the possibility of life on Mars. Will extremophiles prove useful?  Can you explain the…

A: Astrobiology is interested in the possibility of life on Mars because of how close it is to Earth…

Q: Where do spoilage microorganisms come from? What are some of the most common spoilage…

A: Food spoilage is a metabolic process which causes food to be undesirable or unacceptable for…

Q: Which growth condition shown above has the largest doubling time? How would you explain the…

A: * Anaerobic condition can be seen when the uptake or lack of oxygen is greater than its production…

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.