Answered: what does it mean if a bacteria tested…

Science

Biology

what does it mean if a bacteria tested negative for oxidase

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter9: Fundamentals Of Nutrition In Aquaculture

Section: Chapter Questions

Problem 10E

See similar textbooks

Related questions

Q: 1. An organism that has peroxidase and superoxide dismutase but lacks catalase is most likely an

A: Peroxidase - are enzyme which breaks up the peroxides (R-OO) into R-OH and R'-OH Superoxide…

Q: why are underground storage organs like onions, carrots, cassava, potatoes, etc high in carbs and…

A: Underground storage organs (USOs) are an important food source for many people around the world.…

Q: How does plastic effect the growth of bacteria

A: Plastics are the polymers of organic compounds formed from the chains of carbon, sulfur, nitrogen.…

Q: Which of the following terms refers to a substrate gaining one or more electrons? Question 1…

A: The addition or removal of electrons occurs in redox (Oxidation-reduction) reactions. In other…

Q: What do you mean by obligate aerobes? Give some examples.

A: There are two types of organisms- Aerobic and Anaerobic depending on the need of oxygen. Aerobic-…

Q: What is kreb cycle

A: Introduction: The series of chemical reactions that occurs inside the living body for the formation…

Q: an optional anaerobic bacterium usually grow better with oxygen than without

A: Oxygen is important for many living organisms to survive and those organisms whose survival depends…

Q: what does it mean if a bacteria tested negative for H2S

A: Hydrogen sulfide test H2S or Hydrogen sulfide is produced during metabolism of sulfur containing…

Q: Erwin Chargaff did not have any DNA samples from thermoacidophilic bacteria such as those that…

A: Nucleic acids, DNA, and RNA are composed of nucleotides. Each nucleotide is composed of a…

Q: Why is it important to know about bacteria

A: Bacteria are the microscopic organism who have single cell. It is made up of prokaryotic in nature.

Q: Design an experiment to isolate microorganisms able to degrade starch. Explain step wise

A: Starch is a polysaccharide present abundantly in plants and generally deposited in granule form in…

Q: How does an Agrobacterium cell “grow?” What is the purpose of this growth

A: H. J. Conn named Agrobacterium, a genus of Gram-negative bacteria that causes plant cancers through…

Q: Describe what happens in an E. coli bacterium that has been living on the top of your ridge for the…

A: We have a diverse set of microorganisms around us that make our environment. These can be pathogenic…

Q: Which type of inhibitor can be overcome by the addition of more substrate? O 1. Irreversible O 2.…

A: Ans 6. Small molecule inhibition of the enzyme is an important biological system control mechanism.…

Q: Which of the following types of bacteria can contaminate water sources in hospitals and also cause…

A: Bacteria are small single-celled organisms.Bacteria are found almost everywhere on Earth and are…

Q: Escherichia coli has a doubling time of 20 minutes. If there are 8 cells at the beginning of the…

Q: how do bacteria detoxify toxic oxygen from metabolites

A: OXYGEN TOXICITY:- The oxygen molecule that is single and excited is very reactive in its nature. So,…

Q: How bacteria helps in pollution control?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

Q: What is an apoenzyme? Be very specific here.

A: Enzymes are the protein molecules that acts as catalysts in the biochemical reactions and increase…

Q: Is oxygen a requirement for the growth of all organisms? Describe the following in terms of oxygen…

A: Oxygen is a requirement for most of the organism to regulate their growth. Yet, some organisms can…

Q: How do some bacteria detoxify toxic oxygen metabolites

A: Based on the requirement of oxygen for their survival, microorganisms are classified as: Obligate…

Q: What do you think the reason behind using acidophilic and thermophilic bacteria in the bioleaching…

A: Bioleaching is a process that is used in metallurgy to leach out or to obtain valuable metals from…

Q: Which of the following factors does NOT help cells survive and grow well in an AEROBIC environment?…

A: Aerobic organisms require molecule oxygen to grow well in the medium while anaerobic grow without…

Q: Do facultative anaerobes require a functional oxidase, why or why not?

A: The bacteria is the unicellular prokaryotic organism that maintains a definite shape since it…

Q: While bacteria can meet their nutrient needs and survive on acetic acid as a sole carbon source,…

A: Microorganisms and human beings inhabit the same ecosystem. Microorganisms are so called due to…

Q: Name two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the…

A: Obligate aerobes requires oxygen to oxidize various substrates and obligate anaerobes are generally…

Q: What do you expect to happen when there is cell growth in E.coli in the presence of low oxygen…

A: A "microbe" is a living entity that is so tiny that it cannot be seen with the naked eye.…

Q: a) bacteria are “obligate anaerobes.” What does this mean? On Earth, where might these organisms…

A: Obligate aerobes depend on oxygen to survive whereas obligate anaerobes require environments which…

Q: 1. Carols first question was, “What is an enzyme” a. Use the enzyme lactase as an example, and…

Q: Which reaction is carried out by nitrification bacteria? Select one: a. nitrate to nitrite b.…

A: The conversion of atmospheric nitrogen into usable forms such as nitrogenous compounds is called as…

Q: Earlier biochemists called substrate cycles “futile cycles.” Why might they have chosen such a name?…

A: Energy production is one of the main functions of cells. Cells use substrates, such as glucose to…

Q: In an experiment, the bacteria were placed in dropper bottles containing glycerol as a carbon…

A: The purpose is to kill any previous bacteria on the loop before it is exposed to the bacteria. The…

Q: types of organisms do lactic acid fermentation

A: Fermentation is a metabolic process that uses enzymes to cause chemical changes in organic…

Q: Why did we inoculate the KIA slant by stabbing it with an inoculating needle rather than spread the…

A: Inoculating needles are used to inoculate microorganism like - Bacteria from one solid culture media…

Q: These are enzymes that can sustain in a high hydrostatic pressure. * (Please choose one correct…

A: Bacteria are classified into different classes based on the influence of different environmental…

Q: What are the percentages of sulphur and phosphorus isotope that were present extracellularly after 4…

A: DNA is the organic molecule that carries information from one generation to another. Several…

Q: How does cellular respiration helps all organisms for a day to day living

A: Cellular respiration is the breakdown of sugar molecules with the simultaneous consumption of oxygen…

Q: Which of the following undergo lactic acid fermentation? You can choose multiple answers Question 8…

A: Lactic acid fermentation is a metabolic process by which glucose and other six-carbon sugars are…

Q: If an organism tests positive for catalase, which of the following is MOST likely true about the…

A: Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as…

Q: What is different between the locations where Gram-negative bacteria and Gram-positive bacteria…

A: Bacteria are prokaryotic, unicellular living organisms which cannot be seen through naked eyes. They…

Q: If the generation time of Escherichia coli is 30 minutes, starting with 4 E. coli cells, how many…

A: E. coli divides by binary fission. It is a type of asexual reproduction by which they reproduce and…

Q: If an organism tests positive for catalase, which of the following is MOST likely true about the…

A: Catalase is a common but important enzyme that is found in almost all living organisms that depend…

Q: What do you expect to see in successful generating and cleaning up the riboprobes?

A: Riboprobes are RNA probes. For generating riboprobes, conventional methods utilize the invitro…

Q: What are the similarities and differences of exogenic process and endogenic process

A: Answer of the following questions given below...

Q: How is baking put in an application in microbiology and its involved microorganisms

A: Introduction:- Microbes have been used in the bakery industry from a very long time. Yeast have the…

Q: Why are bacteria so important

A: Answer: Bacteria : These are the microscopic organisms found everywhere in an environment and…

Q: Suppose you have a bacterium, which is normally killed in an hour when growing in a medium…

A: It is given that the given bacterium is the auxotrophic and requires the tryptophan for its growth…

Q: What are the two components the medie must contain to test the bacteria for desulfurases

A: SIM (Sulfur, Iindole, Motility) medium differential medium is used mainly to test the ability of an…

Question

what does it mean if a bacteria tested negative for oxidase

Expert Solution

Step 1

The oxidase test in bacteria is performed to confirm the production of cytochrome c oxidase. It is a complex transmembrane protein and the end enzyme in the electron transport process of bacteria. The purpose of this test is:

Identification of anaerobes by testing the production of cytochrome c oxidase.
The differentiation between the Pseudomonas and other bacterial colonies.

Step 2

The experiment gives us two observations positive or negative. When a bacteria gives positive results in the oxidase test it means the use of oxygen as an end molecule in the electron transport process. When a bacteria gives negative results there could be a chance of aerobic, anaerobic, or facultative bacteria in the sample. It confirms that these bacterias do not use cytochrome c oxidase for the electron transport process.

Step by step

Solved in 3 steps

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.