Certain bacteria and archaea, such as methanogens, and deep-sea vent bacteria uses inorganic chemicals and makes organic compounds using CO2. These are called -----------------.  a) Chemoautotroph b) organotrophs c) inorganothrophs d) lithotrophs e) phototrophs

Q: The peptidoglycan region in archaea is connected to each other by a: a) tetrapeptide b) Teichoic…

A: Peptidoglycan is a polymer crucial for forming the cell wall in most bacterial species. Comprising…

Q: Which of the following is NOT a chemical method of microbial control? a) refrigeration b) ethyl…

A: In order to stop the spread of infections and diseases, microbes must be under control. Thereby…

Q: Microbiology Exotoxins can be the following EXCEPT A) they are LPS/lipopolysacharride B) they are…

A: The substances produced by bacteria or any living organism which in contact with tissues can cause…

Q: Most human bacterial pathogens are labeled as __ according to their temperature requirement: a)…

A: Microorganisms known as mesophiles thrive in habitats with moderate temperatures, often between 20°C…

Q: Advanced treatment is often designed to removea) BOD.b) nitrates and phosphates.c) bacteria.d)…

A: Water that is contaminated due to human use converted into waste one which contains physical,…

Q: Which of the following archaea would most likely be found coexisting with bacteria?a) Nanoarchaeum…

A: Archaea are the unicellular prokaryotes and are able to live in a wide range of environmental…

Q: All bacteria produce spores. a) Trueb) False

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: 8) In Saccharomyces cerevisiae (yeast), what is the term for the production of asexual cells? a)…

A: Saccharomyces cerevisiae It is a species of yeast also called brewer's yeast or baker's yeast as it…

Q: Fermentation products produced by the skin-colonizing bacterium Staphylococcus epidermidis benefit…

A: Long-term S. epidermidis skin colonization may aid the cutaneous immune system in differentiating…

Q: Which of the following is NOT a method of culturing/growing viruses? A) in embryonated eggs B) in…

A: Viruses are very small and microscopic. They have a very unique feature. They act as living organism…

Q: An antiviral drug that is a guianine analog would have an antiviral mode of action that: a) blocks…

A: Antimicrobial drugs are agents that inhibit the growth of microorganisms and kill them. They are…

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: In a dark cave, you discover a microscopic creature growing by stripping electrons from Cu+ (cuprous…

A: These are different categories of organism depending upon food sources.

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: If an organism feeds on dead or dying organisms that this mode of feeding is called: a) Heterotroph…

A: Some living organisms eat decaying and dead organisms. They convert complicated organic matter into…

Q: A selective media  a) inhibit the growth of certain bacteria while allowing others to grow b)…

A: An example of selective media includes- eosin methylene blue that is toxic to Gram-positive bacteria…

Q: Agar is extracted froma) Fungib) Bacteriac) Algaed) Virus

A: Agarose and agaropectin are known to combine together to form agar. This jelling substance naturally…

Q: When a medical technologist wants to determine if a clinical specimen contains a Mycobacterium…

A: Answer is a.) Acid -fast stain.

Q: The similarity of one organism to another (for example a bacteria versus a human) is most easily…

A: Biopolymers are the organic molecules which are composed of repeating monomers and produced by…

Q: 8. All the followings can be produced through Industrial Microbiology techniques except: a)…

A: Genetic engineering, molecular biology, and recombinant DNA technologies are all included in the…

Q: If a bacterial culture is started with 50 cells, what will be the cell number after four…

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

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 statement among A -D is false? A) O Active transport processes allow a bacterium to maintain…

A: Membrane permeability is an important aspect for the cells to survive. A semipermeable cytoplasmic…

Q: Bacteria use the following mechanism(s) to resist antibiotics:

A: Antibiotic resistance Antibiotic are the class of compounds that inhibits the growth of bacteria or…

Q: Botulism is cause by an: a)Rickettsia b)Aneorobic spore forming bacteria c)Gram negative…

A: Botulism is not common  but a serious disease. Botulism can be transmitted through contaminated…

Q: Which is true regarding bacterial and archaea species that use nitrogen and sulfur compounds in…

A: Microbes primarily bacteria utilize nitrogen or sulfur compounds as part of their metabolic activity…

Q: The process in which all organisms and pathogens are destroyed is called ------.  a) Disinfection…

A: Microbes are responsible for various diseases in humans as well as animals.Microbes and pathogens…

Q: Which statement among A-D is false regarding bacterial toxins? A) O Hemolysins are cell membrane…

A: Toxins refer to poisonous substances that include a class of small molecules and proteins, which are…

Q: The fatty acids in Archaea differ than those in bacteria in that they are: a) polar in archaea b)…

A: Both bacteria are unicellular microorganisms that are similar in size and simplicity. Both are…

Q: Methanogenesis is a metabolic process found only among certain members of domain Archaea. A) O True…

A: Three domain classification proposed by Carl Woese divides the cellular life forms into Archae,…

Q: Statement which is true about bacteria ? A) All bacteria are autotrophs B) Most of them are…

A: Bacteria are unicellular prokaryotic organisms that are found in all environments from very cold…

Q: 21) All the followings are characteristics of Hyphae except: a) Multinucleated b) Tissue forming c)…

A: 21. All the followings are characteristics of Hyphae except: A. Multinucleated B. Tissue forming C.…

Q: 5) Because humans have unicellular haploid cells and multicellular diploid tissue we are called: a)…

A: Gametes are referred to as the reproductive cells produced by the reproductive system of the body in…

Q: In the classification of bacteria according to shape, which among the following refer to a chain of…

A: Bacteria They are unicellular prokaryotic group of microorganisms that are both beneficial and…

Q: These structures allow bacteria to have reserve deposits of lipids or gasses. O a) inclusions Ob)…

A: Bacteria are small single-celled organisms. Bacteria are found almost everywhere and some e species…

Q: 1) Which of the following apply(ies) to Bacillus cereus and Bacillus anthracis? Choose all that…

A: Bacillus is a genus of Gram-positive, bacilli, or rod-shaped bacteria. B. anthracis is the causative…

Q: 23) Fertilization of the macrogametocyte and the microgametocyte of the malarian parasite takes…

A: Fertilization of the macrogametocyte and the microgametocyte of the malarian parasite takes place…

Q: Which among A-D is false regarding growth and/or analysis of a bacterial culture? A) O Fed-batch…

A: Microbiological culture is defined as a method or process of multiplying different microbial…

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: i) summarize the similarities between the bacteria and archaea, ii) what are the differences between…

A: Prokaryotes are unicellular organisms that contain only a single cell. They are the simple cells…

Q: 2. In endospore germination, which of the following is/are used as carbon source? A) Calcium ions B)…

A: Endospore: a. Endospores are produced within cells and appear refractile and thus light cannot pass…

Q: What is true about archaea? | - their cell walls mostly lack peptidogylcan Il - they are more…

A:

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: 11) The sterilization method that is used to sterilize antibiotics: a) uses halogens b) Phenolics…

A: 11. The sterilization method typically used to sterilize antibiotics is e) Ultrafiltration. This…

Q: 19) Which of the following BEST describes an agent that is bactericidal? A) Windex. B) It suspends…

A: There is considerable difference in the chemical composition of the cell wall of bacteria and that…

Q: Some marine bacteria, such as Cytophaga species, live and grow well inside fish guts and in waters…

A: Cytophaga  is responsible for the cold water disease in trout and results in skin lesions and occurs…

Q: Why are nucleotide or nucleoside analogs effective as drugs? a) act as competitive inhibitor b)…

A: Nucleotide or nucleoside analogs are artificially produced nucleotides that consist of one nucleic…

Q: Production of any toxin in the body due to infection can be detected by____________.a) Bio-sensor b)…

A: Introduction: Toxins produced by microbes such as bacteria and fungi are called microbial toxins.…