A bacterium that produces an extracellular enzyme may:  a. cause a boil      b. resist an antibiotic      c. degrade external sources of food   d. all answers    e. a and b

Q: Which of the following pairs is mismatched? a. catalase: hydrogen peroxide production b.…

A: Answer solved.

Q: Explain why life could not exist without the activities of microorganisms.

A: The microscopic organisms that exist as free-living forms or parasitic forms are known as…

Q: In the human body, Escherichia coli (a normally harmless bacterium) can be found in the: a. mouth b.…

A: Escherichia coli is a gram-negative bacteria. The organisms that are found on or inside the body of…

Q: The following enzymes are substrate specific except?? a. urease b. glucose oxidase c. alkaline…

A: Various chemical reactions that take place in the environment are divided into different categories.…

Q: What substance is produced by a microorganism that is capable of the growth of other microorganisms?…

A: Microorganisms are organisms that can only be observed under a microscope. Fungi, algae, protozoa,…

Q: What modifications can be made to microbial metabolicprocesses in order for them to produce…

A: The small microscopic and unicellular organisms are called microorganisms. There are many types of…

Q: Bio-chemically significant enzymes are derived from______.a) microbes b) macrobes c) insulin d)…

A: Enzymes acts as a catalyst in biochemical reactions. They neither take part in the reaction nor…

Q: A prokaryote that gains organic molecules from other livingorganisms is aa. photoautotroph.b.…

A: The organisms that utilise sunlight, carbon dioxide and water to produce its own food are called…

Q: Which of the following uses of microorganisms is/are importantin biotechnology?a. Production of…

A: Introduction  Microorganisms such as bacteria, viruses etc. are not just pathogenic and harmful but…

Q: bacteria death can result from damage to which of the following structures? a. proteins b.…

A: Bacteria are single cell microscopic organisms which are considered as prokaryotic microorganisms.…

Q: If all prokaryotes were eliminated from the planeta) animals would thrive because there would be no…

A: An organism is any individual element that exemplifies the properties of life. It is an equivalent…

Q: Some bacteria have the ability to “fix” nitrogen. This means a. they convert ammonia into nitrites…

A: Nitrogen-fixing bacteria, microorganisms capable of remodeling part nitrogen into mounted nitrogen…

Q: The large tanks used in industrial production of antibiotics are termeda. digesters b. fermentors c.…

A: Antibiotics are drugs that are useful for stopping the infections caused by bacteria. This is done…

Q: Which of the following is present in both gram-positive and gram-negative cell walls? a. an outer…

A: Depending upon the type of cell walls, bacteria are divided into two main types: gram positive and…

Q: Which of the following bacteria possesses a spherical shape? a) E. coli b) Bacillus anthracis c)…

A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…

Q: Which one is NOT one of the damages caused by free radicals? A. LDL B. DNA C. the cell membrance…

A: Answer :- Option (D) is correct. - RNA.

Q: How does the presence of high concentrations of salt orsugars in food prevent growth of…

A: When a cell is placed in a hypertonic solution, there will be a net flow of water out of the cell,…

Q: Animal cell culture makes use of low amounts of reagents

A: Animal cells are the basic unit of the tissues and organs of all organisms from the kingdom…

Q: UV light is able to damage bacterial cells by:a. preventing mitosis b. damaging DNA c. dissolving…

A: UV stands for Ultraviolet rays. These rays kill bacterial cells.

Q: Which of the following is TRUE regarding bacteria? a- Bacteria help produce vitamins in our…

A: Bacteria These are microscopic single-celled organisms that are found almost everywhere on Earth.…

Q: Which of the following affects the elimination of bacteriafrom an object?(a) Number of bacteria…

A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…

Q: Microorganisms are needed in wastewater treatment facility to do the actual breakdown and removal of…

A: Wastewater or sewage is treated by a consortium of aerobic and anaerobic microorganisms. Aerobic…

Q: Many of the first prokaryotes to be cultured in a scientific lab were human or animal pathogens. Why…

A: Prokaryotes is the single celled organism that contains primitive nucleus (nucleoid) and relatively…

Q: Bacteria make exoenzymes in order to:(a) Make structures within the bacterium(b) Synthesize large…

A: Exoenzymes, also known as extracellular enzymes, are enzymes that are secreted by a cell and act…

Q: Which of the following statements about antibiotics is TRUE? a) Antibiotics are used to disinfect…

A: Microorganisms are small organism that cannot be seen by naked eyes. Microorganism can be harmful to…

Q: particular bacterium requires techoic  acid in its medium in order to grow. What would the bacterium…

A: B. cell wall

Q: Which of the following involves metabolic cooperation among ?prokaryotic cells إختر أحد الخيارات…

A: Metabolic cooperation amongst prokaryotic cells helps them to utilize the available resources in the…

Q: New cells generate from(a) bacterial fermentation (b) regeneration of old cells (c) pre-existing…

A: Cells is defined as the basic and smallest unit of life. It is found in all living organism. It…

Q: Choose the combination of answers that most accurately completes the statement. A microbicidal agent…

A: microbicidal agent has effective by killing or destroying microorganisms.

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: . A bacterium that does not have all the enzymes of central metabolism:    a. Will not be a viable…

A: Central metabolism:- all those metabolomic reactions that provides energy, building block etc.…

Q: Describe the evidence in support of or against the following statement: Humans consume microbes…

A: Microorganisms, often referred to as microbes, are invisible to the naked eye. they will generally…

Q: Pasteurization is a technique that uses temperatures of about 72°C to neutralize potential pathogens…

A: The process of pasteurization involves heating food at a particular temperature for a specific…

Q: The collection of bacteria, archaea, and eukaryotic microbes that normally inhabit the human body…

A: Opportunistic pathogens A group of microorganisms that do not usually infect healthy hosts but…

Q: A persister cell is an individual bacterial cell that can survive: A. In an autoclave B. An…

A: Persisters are a unique variant of cells that exhibit a state of dormancy while exposed to…

Q: In your own words, explain the factors that influence the growth of microorganisms.

A:

Q: Bacteria that require the presence of oxygen are called.. Select one: O A. obligate aerobes B.…

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: In the petri dish in Figure 1, the bacteria Esherichia coli (E. coli) was grown and treated with…

A: `E.Coli - E.Coli or Escherichia coli is a type of bacteria that normally lives in your intestines.…

Q: The effect of antibiotics on micro organismsis mainly due to        a. Inhibition of cell-wall…

A: An antibiotic is a type of antimicrobial substance active against bacteria. In this question, it is…

Q: The process of freezing food:  a. makes oxygen unavailable to pathogenic bacteria  b. makes liquid…

A: c. slows bacterial metabolism to a very low rate

Q: Select a statement that is not true about bacteria     A. Some bacteria cause human disease…

A: Microscopic, single celled organisms which are found in every environment in millions are known as…

Q: Pseudopeptidoglycan is a characteristic of the walls of ________. a. eukaryotic cells b. bacterial…

A: The cell is the basic part of life for the living beings on this planet. Cells are made up of…

Q: w is human activity influencing how microorganisms interact in their natural environment? Provide an…

A: Microorganisms play a variety of role in the life of human beings.

Q: Give two reasons why a pathogen might benefitfrom the secretion of an enzyme that destroys…

A: PATHOGEN---These are the micro organism which causes disease by realizing different type of toxins…

Q: List processes Microorganisms are involved in (ex., oxygen production)

A: All the organisms which performs the process of Photosynthesis can produce oxygen. Microorganisms…