When does endospore formation commence in a bacterial cell?

Q: II. A bacterium can use hydrogen gas (H₂) to reduce Fe³+ to Fe²+ to gain energy and use only CO₂ to…

A: *Microorganisms have a wide range of metabolic abilities and may adapt to different carbon and…

Q: The following is true of a magnetosome? a. they are responsible for the heat resistance of…

A: Magnetosomes are intracellular organelles found in magnetotactic bacteria. They are composed of…

Q: ndospores :  A. are a dormant form of a bacterium AND are formed by members of medically relevant…

A: Endospores are pathogens and remain viable for years. The endospores are resistant to heat and…

Q: Conjugation refers

A: Asexual reproduction is a form of reproduction that involves the production of a new organism. This…

Q: The process by which one bacterial cell transfers DNA to another is:

A: Conjugation is a process of gene/DNA transfer between two bacterial cell that occurs when physical…

Q: Which term best describes the morphology of this bacteria? Question 2 options:

A: The correct answer is "bacillus," which accurately describes the rod-shaped morphology of the…

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

A: Bacteria are biological cells that represent a large domain of prokaryotes. Bacteria are considered…

Q: When do bacteria form endospores? a-When environmental conditions are unfavourable b-When they want…

A: Introduction :- Spores known as endospores are produced inside of cells, primarily in bacteria.…

Q: You add a drug to your bacterial culture that disrupts the proton motive force (movement of protons…

A: The proton motive force (PMF) is a mechanism used by cells, particularly prokaryotic and plant…

Q: The structures that enable some Gram-positive bacteria to remaindormant for extremely long periods…

A: Bacteria are the prokaryotic organisms adapted to survive in a wide range of habitats.

Q: Gram-positive (+) and gram-negative (-) bacteria are characterized by differences in a. the cell…

A: Answer is c.) the cell wall: Gram + have a thick layer of peptidoglycan.  Gram - have an outer…

Q: Why are endospore vials used to test autoclave function?   A. they change color when killed B. they…

A: The whole Earth is full of a lot of organisms. Unicellular and multicellular organisms inhabit the…

Q: Which of the following cellular components are important players in maintaining the shape of…

A: The living world is made of various unicellular and multicellular organisms. These organisms are…

Q: Which of the following would be best observed for a bacterial cell using phase-contrast microscopy?…

A: Phase-contrast microscopy is an optical microscopy technique used in cell culture and live-cell…

Q: The colonies growing on the surface of solid media represent: Select one: a. A group of different…

A: The CFU/ml are often calculated using the formula:cfu/ml = (no. of colonies x dilution factor) /…

Q: Which of the following is present in certain Gram positive bacteria and functions in resistance? O…

A: Ans- b) Spores The most resistant part that is present in gram-positive bacteria is spores as it is…

Q: What is/are the usual habitat(s) of endospore-forming bacteria thatare agents of disease?a.…

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

Q: During death phase, microbial cells are...

A: Death phase is a phase in the growth curve of the microbial growth in microbial culture. The growth…

Q: In an experiment Staphylococcus, streptococcus and enterococcus are bacteria that are stained dark…

A: Introduction:  The bacteria are classified on the basis of staining as gram-positive and…

Q: How do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their…

A: Introduction: Bacteria are single-celled living beings. Bacteria are discovered wherever on Earth…

Q: Why can’t the kidneys just excrete the filtered plasma without adjusting it’s content?

A: Kidneys are the paired structures found in the lower abdominal cavity. The main function of kidney…

Q: When conditions are unfavorable, some bacteria: a. Become non pathogenic b formspores, a resting…

A: Microorganisms that are single-celled plants can be pathogenic or non-pathogenic. Is the condition…

Q: Explain the tenets of Cell Theory Describe how microscopy led to the Germ Theory of infectious…

A: Cell Theory: A basic idea in biology, cell theory has completely changed how we view life. It puts…

Q: Compare and contrast the structure and function of the following among bacteria and eukaryotes: a.…

A: In bacteria, ribosomes are cellular structures responsible for protein synthesis. They are composed…

Q: Analogies Photosythetic bacteria: sulfur compoinds:: A. Chemoautotropic bacteria: sulfur compound…

A: Analogy is a process of passing on the meaning or information from one object to another. It uses…

Q: If an organisms that is a mixotroph loses its plastids, it survives because   A. It has an…

A: Mixotrophs-Those organisms that combine autotrophy (self dependant on food production) and…

Q: From the given option below what is the community of prokaryotes surrounded by slime and adhering to…

A: Prokaryotes are microbes without a nucleus or even other organelles in their cells. Bacteria and…

Q: Which of the following is NOT a true statement about bacterial structure and function?   A.…

A: Microscopic unicellular small organisms of an average diameter of about 1 μm. May range from 0.1-10…

Q: The peptidoglycan of bacteria has been compared with the chainmail worn beneath medieval knight’s…

A: Analogous functions are defined as the organs of different animals with different structures but…

Q: All of the following are characteristics of the bacterial flagellum except: Select one: a. It has a…

A: c. It is used in conjugation NO PILI ARE USED

Q: A bacteria having a generation time of 30 minutes will undergo 6 cell division/hr. During 6 hrs of…

A: Cell culture provides mechanisms for the investigation of cell physiology and fundamental…

Q: The bacteria capable of producing dormant bodies devoid of active metabolism, but carry all the…

A: Bacterias are of different types according to their shape- spiral, rod, spherical, comma, and…

Q: Which

A: CONJUGATION:-  Is the process by which one bacterium transfer genetic material to another through…

Q: From the given option below what is the community of prokaryotes surrounded by slime and adhering to…

A: Prokaryotes are organisms whose cells lack a true nucleus and other membrane bound organelles.  Some…

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

A: There are two types of bacteria Gram-positive and gram-negative.

Q: Which bacterial structure is found internally in the cell?   a. plasmid   b. cell wall   c.…

A: According to the cell theory, all life forms are made up of cells, that can be a single cell…

Q: A microbe causing a bloodstream infection is likely all of the following except

A: Certain bacteria can lead to bloodstream infections causing septicemia. It may use an external route…

Q: Match the microorganism to the best description of its cell wall component. A. Lacks cell wall ,…

A: The cell wall is specific to plant cells. In animal cells, the protective membrane is called the…

Q: Define the following terms:a. botulismb. botulinum toxinc. t-SNAREd. v-SNAREe. membrane fusion

A: Molecular biology is the field of biology that studies the composition, structure, and interactions…

Q: Which of the following are features of Flagella?   A. Found on the cell surface   B. Necessary…

A: Flagella is a helical structure which comprises of flagellin protein.Structure of flagella is…

Q: Naked viruses typically exit the cell via this/these processes (may choose more than one). a.…

A: Introduction Naked viruses are a virus without an enclosing envelope, consisting only of a…

Q: 48. The arrow points to a Listeria monocytogenes cell moving within the cytoplasm of an intestinal…

A: Listeria monocytogenes is a pathogenic bacteria that causes listeriosis. They can live both in the…