Bacteria can grow under a variety of conditions but also have growth preferences. Bacteria that prefer to grow under oxygen levels that are below that of atmospheric oxygen are called: Obligate aerobes Microaerophiles Anaerobes Facultative anaerobes Clear my selection

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: You are studying a new bacteria isolated from the soil by identifying the cellular structures that…

A: Gram-positive bacteria can be recognized by the thick layer of peptidoglycan that makes up the…

Q: Match the type of bacterium with its environment. Select your answers from the choices provided (A…

A: It is necessary to categorize bacteria in order to understand and utilize the aseptic techniques and…

Q: Approximately how many bacterial colonies are present on plate B?

A: Bacteria are small, microscopic, and unicellular organisms that are found almost everywhere on the…

Q: What are the four most important chemical nutrients for microbial growth? O Carbon, copper,…

A: Microbial growth refers to the growth of a population, not to an increase in the size of the…

Q: Which of the following groups of archaea have useful roles in various applications of recombinant…

A: There are three domains of life archaea bacteria and eukaryotes. Archaea are specialised for living…

Q: An extreme-weather event has knocked out power in your community. Even with rebuilding efforts, it…

A: Food preservation is essential to avoid the wastage of food. There are natural as well as man made…

Q: An organism that thrives in highly saline (salt rich) environment would be considered a:

A: Some primitive microorganisms are defined by their habitats,  for example methanogens can release…

Q: Which of the following bacterial genera is useful for the degradation of environmental pollutants?…

A: Biodegradation is formed from two words :- ' bio ' and 'degradation '. Bio means living while…

Q: Which of the following is not a characteristic of the Enterobacteriaceae? Group of answer choices…

A: Enterobacterium is a family of gram negative bacterium, facultative anaerobe, non spore forming…

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 feature of mycobacteria is responsible for the unusually slow growth of these bacteria?   They…

A: INTRODUCTION Mycobacterium They are generally non motile acid fast bacteria causes tuberculosis and…

Q: If you are working at a sewage treatment plant, which microbial process would you use to reduce…

A: denitrification;to reduce HAB's.

Q: You are given an unknown bacterium in the lab and have to determine unknown bacterium's oxygen…

A: . Obligate Aerobes require oxygen to grow but Obligate anaerobes are damaged by oxygen. Facultative…

Q: Different types of bacteria are found inbiofilm. Bacteria with oxygen respiration are found at the…

A: A biofilm is the syntrophic consortium of microorganisms in which the cells stick to each other and…

Q: Which of the following is NOT typical of Halophiles?   Choose all that fit the sentence above.…

A: Halophiles are microorganisms that can thrive in extreme kind of environment.

Q: How is it possible for strict anaerobic bacteria to cause a disease in humans? Strict anaerobe…

A: An anaerobic organism is a organism who does not require molecular oxygen for the  growth.

Q: Which of the following is not a characteristic of bacteria? Multiple Choice Ribosomes are present as…

A: Bacteria are single-celled organisms that are microscopic in nature that exist everywhere. Ranging…

Q: The microbes discovered in Lake Whillans and Pitch Lake represented a few of the general categories…

A: Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms or…

Q: All bacteria living at the bottom of a pond can degrade organic matter AND are nitrifiers.

A: Degradation of organic matter is really important for now a days because population is increasing…

Q: What is believed to be the concentration of bacteria in soil? 109-1010 cells/g dry weight 105-106…

A: Introduction Bacteria are the unicellular living cells/organisms belonging to the domain prokaryote.…

Q: Spirochetes Proteobacteria Cyanobacteria Planctomyces Bacteroides Cytophaga Thermotoga Aquifex (A)…

A: All biological organisms are broadly categorized into three major domains of life which are,…

Q: For a bacterium that prefers a neutral pH and has an optimal (best) growth pH of 7, how would growth…

A: The optimum pH for the growth of microbes is the favorable pH for that organism. The lowest pH value…

Q: Why do raw household ingredients such as granulated sugar and cooking oils never go bad in normal…

A: A. Extrinsic factors are factors in the environment external to the food, which affect both the…

Q: For long-term storage of microbes that will be may be revived and grown later, what temperatures are…

A: The underlying principle of long term preservation is to keep microorganisms in a dormant state,…

Q: Selective media: O Is regular nutrient agar that can grow any microorganism Selects for the growth…

A: Cultured bacteria are any bacteria that grow in the lab by the microbiologist using the required or…

Q: You want to recognize a love of bread and beer.  To which of the following taxonomic groups should…

A: Bread refers to food product formed by baking of fermented dough made of flour.  Beer is a…

Q: In order to assimilate nitrogen or sulfur, A microbe must first convert it into an oxidized form…

A: Answer.):-Microorganisms play a crucial role in various biogeochemical cycles by facilitating the…

Q: Nitrogen fixation is the conversion of nitrogen in present in soil or organisms. Nitrogen fixation…

A: According to NASA, the earth's atmosphere comprises 78% nitrogen gas, 21% oxygen, 0.93% argon, 0.04%…

Q: The absence of ________ leaves obligate anaerobes susceptible to killing by oxygen.   vitamin E…

A: * obligate anaerobes means the organisms that can survive in absence of oxygen only. * They depends…

Soil Ecosystem

Soil provides a habitat or living environment for a large number of different species of organisms as well as plants. It provides all the essential nutrients and minerals for plants to grow. All these together form the soil ecosystem.