Some samples may have little to no growth even though microorganisms are present. List four factors that could cause a decrease or lack of growth. (Hint: Consider growth and nutritional requirements of organisms.)

Q: microorganism involve (select all that apply).     Accumulate information that pertains to the…

A: Identification of an unknown microorganism involve (select all that apply). Accumulate information…

Q: How influential is microbial activity on the geological processes of mineral formation and…

A: Microbial activity refers to the metabolic processes carried out by microorganisms such as bacteria,…

Q: Explain this statement as completely as possible (in detail): Bacteria grow.

A: microorganisms that can only be seen with specialised equipment (a microscope). Bacteria can be…

Q: You are attempting to grow a culture of Escherichia coli to use in an experiment, and you need the…

A: Doubling time of a bacterial cell can be defined as the growth pattern in which the bacteria attends…

Q: Which of the following statements regarding low temperature storage is FALSE?   Question options:…

A: Controlling microbes is critical for preventing disease spread.

Q: Clay may be categorized as: Group of answer choices a) A size fraction of the soil. b) A Textural…

A: Clay is a part of the soil that is used to grow crops. It may or may not be present on the topsoil.

Q: What is the growth rate of the E. coli population?

A: We know that the bacteria doubles after a certain time: Number of bacteria in beginning of growth…

Q: True or False: The turbidity of a sample incubated in a liquid medium can be assessed to estimate…

A: Turbidity means cloudiness present in a sample.

Q: Briefly explain biomedical waste.

A: Wastes are unusable or unwanted materials. Waste is any substance which is discarded after primary…

Q: You are a technician working in a microbiology lab. You grow two bacteria cultures, Bug A and Bug B,…

A: The cell culture medium is a liquid nutrient solution used to grow and maintain cells in vitro. It…

Q: Place the following in the correct order in terms of steps taken, followed by the consideration…

A: The step and consideration are arranged in a sequence.

Q: A microorganism was streaked onto 4 nutrient agar plates and the plates were incubated at different…

A: Nutrient agar  A type of general media that supports growth of wide variety of microorganisms.

Q: The normal state of cations and anions in a soil is in the hydrated state. TRUE OR FALSE

A: Hydrated state means in combination with the water. Soil is made up of very small and large…

Q: A growth medium consisting of only known amounts of water, magnesium, calcium chloride, potassium…

A: The growth medium, also called as Nutrient Broth, is a kind of solution which is sterilized to get a…

Q: a) Create a bacterial growth curve with log values of CFU/ml on the Y-axis andthe time

A: Bacterial growth curve is a graphical representation of number of live bacterial cells over the time…

Q: Describe the similarities and the differences in the growth patterns in the two plates.

A: For optimal microbial growth, various growth conditions are required. Oxygen requirement is one of…

Q: Discuss the pH requirement for microbial growth briefly and concisely

A: pH is measured in terms of hydrogen ions.  pH= - log [H+]  The optimum pH is the most favorable pH…

Q: Which would be the control plate for the NaCl experiment and the Sucrose experiment and why?

A: Introduction:- control in an experiment usually set as a reference against which all other…

Q: microbial growth on the plates overlaid with water sample (tap water).

A: INTRODUCTION  Microbial growth on plates overlaid with water samples is a common method used for…

Q: All of the following are valid measurements of growth except: A. Counting viable cells B.…

A: Use the general formula: [Number of colonies counted] × 10 × [how many times the sample must be…