Endospores are     a) resistant to extreme temperatures     b) produced by some prokaryotes     c) can survive for decades     d) all of the above

Q: 16) Bacterial DNA replication is said to be: a) Linear b) curvilinear c) circular d) exponential e)…

A: 16) Bacterial DNA replication is said to be circular. This is because bacterial DNA is organized in…

Q: Bacteriophage entry into a host cell involves: a) Endocytosis b) Membrane fusion c) Direct injection…

A: A bacteriophage, commonly referred to as a phage, is a type of virus that specifically infects…

Q: Gram psotive bacteria contains a tick peptidoglycan layer and an outer membrane.  a) True b) False

A: Gram positive bacteria give a positive result in Gram staining test. This test is used to classify…

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: Why are endospore forming bacteria commonly found in soil?

A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…

Q: 19) in mammalian cell culture which of the following are necessary to maintain  a) nutrient media…

A: Mammalian cell culture is the process of growing animal cells in vitro in a flask or dish. The steps…

Q: The reserve food material in algae is --------a) celluloseb) starchc) proteind) glycogen

A: The reserve food material is the stored food in the organism’s food storage organelle which comes…

Q: Endotoxin is associated witha) Gram-positive bacteria.b) Gram-negative bacteria.c) the cytoplasmic…

A: Endotoxin : It is the chemical which is toxic in nature  released from  the bacterial cell when the…

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: The peptidoglycan layers are anchored to the cell membrane by: a) tetrapeptide chain b) dipeptide…

A: Peptidoglycan is a complex polymer that is a major component of the cell wall in bacteria. It is…

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: The Golden Age of Microbiology was the time whena) microorganisms were first used to make bread.b)…

A: Microbiology can be defined as the study of microscopic organisms, such as bacteria, viruses,…

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: What is morganella morganii bacteria : 1) Gram stain; (2) Shape; (3) Arrangement; (4) Fermentation…

A: Morganella morganii is a rod shaped, gram-negative bacteria that is commonly found in the…

Q: Which group of organisms most commonly spoils breads, fruits, and dried foods?a) Acetobacter…

A: Microorganism: These are too small organism which is impossible to see by naked eyes. They exist in…

Q: Endotoxins are A) O Associated with lipid A of the LPS layer. B) O Secreted from the cell. C) O Part…

A: Endotoxins are substances, especially toxins, which are resistant to heat and are found in a wide…

Q: Medications used to treat protozoal infections are commonly referred to as _______________. A)…

A: Introduction Diseases caused by protozoan infections impact many different types of creatures,…

Q: The ________ clones are developed by nuclear transfer into the host cell.a) Artificial b) Natural c)…

A: Cloning is a genetically manipulating procedure that results in a genetically identical cell or…

Q: If you read that coliforms had been found in a lake, the report could have been referring to which…

A: Coliforms cover a broad group of microorganisms that are present in the environment. They are…

Q: many mushrooms produce toxins that can cause … a) death b) hallucinations c) severe illness d) all…

A: Many mushrooms produce toxins, Which can cause all the above options as they are, Death…

Q: Lysozyme and the antibiotic penicillin have similar mechanisms of action in that they both cause…

A: To find: What do Lysozyme and the antibiotic penicillin cause damage to?

Q: Which of the following would occur if a motile bacterium were moving towards an attractant A) O a…

A: Chemotaxis is the movement of a cell towards or away from any chemical source. Two chemotaxes exist,…

Q: Which of the following is NOT true about endospores? 1) Spores are resistant to heat, radiation,…

A: Endospore production is normally caused by the complete absence of nutrients and favorable…

Q: ew flu strains can arise by

A: Answer is b.)  viral reassortment.

Q: All of the following genera are spirochetes excepta) Borrelia.     b) Caulobacter.     c)…

A: The tiny and minute organisms that cannot be observed with unaided eyes are the microorganisms.…

Q: 7) Cyanobacteria and green algae are possible photosymbionts in which symbiosis? a)Legume - Root…

A: Microorganisms perform essential functions in many ecosystems and interact with other organisms in a…

Q: While you were working on the oil spill problem, you received a report showing that the bacteria you…

A: The release of liquid petroleum hydrocarbons into the water bodies like oceans is known as oil…

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: Mycobacterium tuberculosis is very difficult to stain because of the A) presence of ribosomes in…

A: Mycobacterium tuberculosis is a bacterial pathogen responsible for causing tuberculosis in human…

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: Giardia lamblia enters a human or other host in what form? O a) trophozoite Ob) spore O c) endospore…

A: Protozoans are group of organisms that possess single cell and are eukaryotic . They are classified…

Q: 20) Biological control of Salmonella is by using: a) E. Coli (ETEC Strain) b) Shigella c)…

A: 20. Control of Salmonella using Bdellovibrio: Bdellovibrio is a unique predatory bacterium that…

Q: Certain bacteria and archaea, such as methanogens, and deep-sea vent bacteria uses inorganic…

A: The bacteria, archaea such as methanogens and deep-sea vent bacteria use inorganic chemicals and…

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: In E. coli, the passage of traits from parent to daughter cell occurs via A) O transformation B) O…

A: The cell division process of prokaryotes (such as E. coli bacteria) is called binary fission. For…

Q: Fungal infections generally have fewer treatment options because.. a) they are Gram negative cells…

A: The cells are classified into prokaryotic or eukaryotic cells depending on their nature and…

Q: Match the term below with the statement that best describes it: A) Clamydia B) Mycobacterium spp. D)…

A: Bacterias are small, single cell living organisms which can be found in or on our bodies. These…

Q: 48) Sleeping sickness is caused by: a) Unicellular organism b) Eukaryote c) Protozoan d) Parasite e)…

A: Sleeping sickness, also known as African trypanosomiasis, is a potentially deadly parasitic disease…

Q: ) Identify the most correct choice: a) All fungi reproduce by binary fission. b) Fungi are…

A: Fungus Fungus specifically refers to the class of organisms including mushrooms. these are…

Q: Bacteriophage entry into a host cell involves: O a) Endocytosis Ob) Membrane fusion O c) Direct…

A: A bacteriophage, commonly referred to as a phage, is a type of virus that specifically infects…

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…