Two cultures of a facultative anaerobe are grown in the same medium, but one culture is exposed to air and the other is maintained under anaerobic conditions. Which of the two cultures will contain more cells at the end of a week? Why?

Q: Why is buffering important when preparing a growth media? 2. Explain why bacterial fermentation…

A: 1. To explain why buffering important when preparing a growth media Concept Buffer solutions are…

Q: Why does an facaltive anaerobic bacterium usually grow better with oxygen than without?

A: A facultative anaerobe is one which is able to survive in both aerobic (oxygen) as well as anaerobic…

Q: Compare and contrast oxygen requirements for obligate anaerobes and microaerophiles. Describe one…

A: Introduction :- Obligate anaerobes are microorganisms that cannot survive in the presence of oxygen…

Q: you grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which…

A: The experiment involves growing streak plates of Clostridium sporogenes under both aerobic and…

Q: Measurement of Bacterial Growth @ 4°C Plot of Absorbance vs. Time (mins) -LB, pH 3.2 LB, pH 7.2 -LB,…

A: Bacterial growth occurs when a bacterium divides into two daughter cells, a process known as binary…

Q: List the different type of bacteria depending on the salt concentration required for their growth?…

A: Halophiles are found in  three domains -Inside the Bacteria  halophiles depend on salt concentration…

Q: equires oxygen at a lower concentration than typically found in air.   Question 3 options:   a)…

A: Throughout nature, aerobic and anaerobic environments can be found in diverse niches. These…

Q: Which of the following bacteria can survive in in temperatures ranging from 390F (40C)---to 990F…

A: Thermophiles Are a type of heat-loving microbe that lives in a variety of ecological niches such as…

Q: What effect does decreasing the incubation temperature have on bacterial growth rate? Why?

A: Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary…

Q: Which has a greater impact on the survival of an organism, temperatures above its maximum…

A: The microbes grow in a wide temperature range. The microbial growths are found to be higher at their…

Q: What is the best growth medium that contains glucose that can be used to acclimatize bacteria? and…

A: A growth medium is a liquid, solid, or semi-solid preparation that supports the growth of a…

Q: In the exponential phase of microbial growth, Log cell numbers Time 1 1 1 1 1 1 I 1 1 a) net cell…

A: Microbial growth curveThe microbial growth curve shows the pattern of microbial growth.There are…

Q: In microbiology, the term growth in a culture usually refers to an increase in O 1) the number and…

A: Microbes are the microscopic appearance creatures that are not visible to the naked eye. These…

Q: Which bacteria are inhibited from growing on eosin methylene blue (EMB) and agar? a)halophilic…

A: EOSIN METHYLENE BLUE  - eosin methylene blue is a selective strain for gram - negative bacteria . It…

Q: a) Draw the diagram and describe motility required for the bacteria that have flagella to an…

A: Bacteria are a diverse group of microscopic, unicellular organisms that are categorized as…

Q: You inoculated two tubes of liquid cuture media with 100 bacterial cells and incubated one tube at…

A: "Microbiology" is the study of microorganisms and associated topics. Microbiology has gone a long…

Q: Why does the commercial production of yeast require special equipment to achieve adequate aeration,…

A: High yield of yeast cannot be attained unless air in a huge quantity is injected in fermentation…

Q: In growing E.coli, why is that (reasons) they do not grow after doubling time under 20 degrees…

A: In a core typical range of its growth temperatures (20 to 37°C), Escherichia coli cells will grow…

Q: esence or absence of oxygen. After 12 hours, all of the glucose in each culture has been ned. You…

A: 1) The cell culture grown aerobically with the presence of oxygen will have more cell density than…

Q: You have a cell suspension in an isotonic medium. Explain in detail what would happen when you add:…

A: Urea mannitol acts at a hyperosmolar agent. Both mannitol and hypertonic saline are established as…

Q: The autoclave uses a combination of ___ to accomplish its function: a) temperature and pressure b)…

A: a) temperature and pressureExplanation:An autoclave is a widely used device in various fields,…

Q: The generation time of a bacterium was measured at two different temperatures. Which results would…

A: The small microscopic, unicellular organisms that are generally not visible to the naked eye are…

Q: Define growth. Why does the lag phase in some bacteria is short or absent and the log phase of the…

A: Grоwth, the inсreаses in сell size аnd number thаt tаke рlасe during the life histоry оf аn оrgаnism…

Q: Is the Peptone Iron Agar (PIA) a complex or defined medium? Explain based on its composition. Is the…

A: Depending on their composition, media can be classified as defined and undefined media. Defined…

Q: Why do we use the term CFU (colony forming unit) instead of reporting bacteria per ml? Explain.

A: The  bacterial species are responsible for causing several diseases within the human body. So, for…

Q: List 5 temperature requirements for bacterial growth. Explain the temperature ranges and where do…

A: Ans: Bacterial growth: The growth of animalcules or microbe happen at different optimum conditions.

Q: How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen…

A: Facultative anaerobes are organisms that survive in the presence of oxygen and use oxygen for…

Q: If the bacteria within your medium suddenly die, can an alteration in osmotic balance be the reason…

A: The passage of water through a membrane is known as osmosis. The movement of water to the side of…

Q: d) Since we know this bacterial organism thrives in colder areas of the world, what can be said…

A: Bacteria are present everywhere in the world, including cold environments. Certain types of bacteria…

Q: Conditions for an average autoclave run are and bacterial endospores. O 21 degrees C/5 psi/5…

A: Autoclaving is the means of wet mode of sterilization. Autoclaves use high temperature combined with…

Q: What is the role of oxygen in aerobic respiration? What type(s) of metabolism can occur in the…

A: According to the Q&A guidelines, we are supposed to answer only three sub-parts. Please repost…

Q: Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive…

A: As per our company guideline we are supposed to answer only first question or first 3 subparts of…

Q: Bacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles…

A: Bacterial growth is influenced by many factors such as temperature, oxygen requirements, pH, source…

Q: What cell types would be able to grow on the ECM in the following situations? F- , Hfr , Mix   a)…

A: Introduction  The ECM (extracellular matrix) is a complex mixture of proteins, glycoproteins, and…

Q: Does the "lag" phase always occur during microbial growth? Explain.

A: For the purpose of observing the actions of live cells, microbial development is taken into account.…

Q: A hyperthermophile most likely has:   a)  cryoprotectants   b)  low void volume proteins   c)…

A: Hyperthermophiles are organisms that thrive in extremely high-temperature environments, typically…

Q: What general type of growth medium would you use to: (a) grow one type of bacteria but inhibit the…

A: Answer a)  Selected media prefer the growth of one microbe but block the others. It is made of…

Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.