Q: How does the precise structure of the cell walls differ between gram-positive and gram-negative…
A: Staining is a technique used in slide preparation to colour the specimen. With light microscopy…
Q: Despite many interesting characteristics and features observed in Archaea, why is there not much…
A: Archaea are unicellular microorganisms that are structurally similar to bacteria. They are one of…
Q: Which cell shapes are observed members of both Bacteria and Archaea? Which are unique to bacteria?…
A: Prokaryotes are single-celled organisms having a place with the domains of Bacteria and Archaea.…
Q: How does the cell wall of gram negative and positive bacteria differ ?
A: Bacteria are Prokaryotic microbes which comprises of one cell and are without nucleus . On basis of…
Q: hich of the following is NOT a component of bacterial cell walls?
A: The correct option is 1. Sterols
Q: The bacterium Thiomargarita namibiensis—at about 0.1 to 0.3 mm in diameter—is visible to the human…
A: Thiomargarita namibiensis is prokaryotic bacteria which is found in an extreme habitat where…
Q: Biological membranes are often described using the fluid mosaic model. What are three defining…
A: The plasma membrane is a thin, elastic, semi-permeable membrane that forms the external boundary of…
Q: How does the membrane of an oil body differ from that of the plasmamembrane:
A: Oil bodies are found predominantly in the seeds of plants as well as in some fruits, such as olives…
Q: What are the peptidoglycans in the Gram Positive bacterial cell wall made up of?
A: Peptidoglycan is a component of cell wall of gram-positive and gram-negative bacteria. The polymers…
Q: Could bacterial cell walls consist largely of protein? Why or why not?
A: A cell wall is a layer located outside the cell membrane found in plants, fungi, bacteria and algae.…
Q: Identify each of the structures on a diagram of the prokaryotic cell, and explain the function.…
A: Prokaryotic are primitive and simple cells like bacteria which are usually unicellular, have no…
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: h: The cell wall of Gram-positive and Gram-negative bacteria.
A: Cell wall The cell wall is the rigid external protective layer made of polysaccharides that…
Q: Which of these characteristics is NOT shared by bacteria and archaea?
A: The above given statement is about bacteria and archae.
Q: Compare and contrast archaeal and bacterial cell envelopes in terms of their structure, molecular…
A: Archaebacteria differs from the modern bacteria in a fact that they are primitive bacteria which may…
Q: Why cell wall is non living?
A: Cell wall: The cell wall in plants is a structural layer outside the cells and plays an important…
Q: Prokaryotic cells are_________ (larger/smaller) thaneukaryotic cells. The most common shapes of…
A: Prokaryotes: Any organisms that lacks a distinct nucleus and other organelles due to the absence of…
Q: Archaea exhibit a wide variety of cell shapes, including some that are unique. Suggest why this…
A: Archaea (solitary archaeon) comprise an area of single-celled living beings. These microorganisms…
Q: Why do some microbiologists disagree with classifying bacteria and archaea as “prokaryotes”?
A: Organisms are broadly classified as eukaryotes and prokaryotes. Eukaryotes are organisms that have a…
Q: How many flagella do bacteria have?
A: The flagellum is a thread-like helical structure that acts as a locomotory organ for bacteria. It is…
Q: What is chemically unique about acid fast bacterial cell walls?
A: Acid fast bacteria are gram positive bacteria . They are unique among prokaryotes and normal gram…
Q: Why do bacteria have flagella?
A: Bacterial flagella are rigid; the slender structure around 20 nm across and up to 20 micrometers…
Q: Why do bacterial cells need cell walls? Do all bacteria have cellwalls?
A: Bacteria are unicellular, prokaryotic organisms that do not have a well-defined nuclei and…
Q: Which of the following would be found inside a bacterial cel? inclusion Onucleiod Ofagella cytoplasm…
A: Bacteria is the single celled microorganisms with prokaryotic cell have no nucleus and other…
Q: Contrast thetypical structure of the cytoplasmic membranes of Bacteria and Archaea
A: The bacteria and archaea are single-celled organisms that are devoid of the nucleus and other…
Q: What protects cells from dehydration and nutrient loss, helps defend against and helps with the…
A: The cells are covered by a different membrane. The plasma membrane can be found on almost all cells…
Q: Compare and contrast archaeal and bacterial cell wall structure (peptidoglycan and pseudomurein) in…
A: Introduction A cell wall is a structural layer found just outside the cell membrane that surrounds…
Q: Which of the following correctly describes one difference between gram-negative bacterial cells and…
A: Answer: Gram-negative bacteria have an outer lipopolysaccharide layer Gram-negative bacteria have an…
Q: discuss the similarities and differences of a gram positive cell wall and a gram negative cell wall
A: The bacteria are prokaryotic organisms that can be characterised by the absence of membrane-bound…
Q: Would gram negative or gram positive bacteria have an advantage over the other in these tonicities?…
A: A lipopolysaccharide-containing outer membrane surrounds the peptidoglycan cell wall that encases…
Q: Why are eukaryotic cells so much larger than prokaryoticcells?
A: Prokaryotic cells do not have a nucleus, their genetic material is present within an…
Q: How is cell wall of bacterium made up of?
A: Bacteria are unicellular and prokaryotic organisms that live in a wide variety of environments. It…
Q: How does Thermoplasma strengthen its cytoplasmic membraneto survive without a cell wall?
A: Thermoplasma are prokaryotic organisms that belong to the domain archaea. They have the capability…
Q: Bacteria are lacking all of the following EXCEPT membrane-bound organles. specialized membranes. a…
A: The living world is primarily divided into eukaryotes and prokaryotes. Prokaryotes are the primitive…
Q: The cell walls of most members of the phyla Firmicutes and Actinobacteria lack porins. Why is this…
A: A biological cell is a hub of metabolic activities. The different organelles present in the cell…
Q: What are the advantages of biofilms as a growthmode over a planktonic lifestyle?
A: Planktons include diverse collection of organisms, which lives in water bodies and form the primary…
Q: Why is cell membrane called fluid mosaic?
A: The cell membrane is also called a plasma membrane. It consists of a double layer of proteins and…
Q: Which of the following is NOT a structure involved in the movement of bacteria?l Cilia Sex Pilus…
A: Bacteria are single-celled organisms that are small in size. Bacteria can be found almost anywhere…
Q: The bacterial cell wall functions to_____
A:
Q: "a long, thin cellular appendage present in many Archaea that rotates and is responsible for…
A: Step 1 Archaea are the most ancient and heterogeneous group of bacteria that originated from…
Q: What type of bacteria have flagella?
A: Flagella is a thread like locomotor appendages that extends outward from the plasma membrane and the…
Q: Why is there a debate as to whether archaea is classified as prokaryotic or eukaryotic
A: Introduction Single-celled organisms are classified as Archaea. Prokaryotes are microorganisms that…
Q: Which types of eukaryotic microbes have cell walls? How do their walls differ from those of…
A: All living things are made up of cells. The cells are classified into two major types, namely…
Q: how is this lipid part of archaea cell membrane ?
A: ARCHAEA BACTERIA: They are single celled organism belongs to kingdom Archaea. they are…
Q: How does the membrane structure of hyperthermophilicArchaea differ from that of Escherichia coli and…
A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…
Q: What are the three main differences between bacterial and archaeal membranes?
A: Archaea constitute a domain of single-celled organisms. These microorganisms lack cell nuclei and…
Q: which of the following is MOST LIKELY to damage or kill bacteria with an intact (undamaged) cell…
A: Bacteria are the unicellular prokaryotes. They don't have week defined nucleus.
Why archaeal membranes are usually stronger than bacterial membranes (list at least 3 reasons)?
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- What kinds of work are carried out in a cell? Suppose a bacterium was doing the following: synthesizing peptidoglycan, rotating its flagellum and swimming, and secreting siderophores. What type of work is the bacterium doing in each case?What cellular structures distinguish prokaryotic andeukaryotic cells? What are some differences between acell wall and a cell membrane? In what types oforganisms would you expect to find these structures?The cell walls of most members of the phyla Firmicutes and Actinobacteria lack porins. Why is this the case?
- Why do bacteria have flagella?How do cilia and flagella move, and what is dynein’s role in the process? Contrast the ways in which flagella and cilia propel eukaryotic microorganisms through water.Explain osmotic balance in cells. What happens to a cell that is placed in a hypotonic solution, hypertonic solution, or isotonic solution? What is special about the maintenance of osmotic balance in halophiles that would allow them to survive in high salt concentrations? What is the natural habitat of archaea species Halobacterium salinarum?
- Answer the following questions: Which cell shapes are observed members of both Bacteria and Archaea? Which are unique to bacteria? Which to archaea? Both bacteria and archaea can have S-layers. How does their use as components of the cell envelope differ? What observations about cannulae and hami suggest that they allow archaeal cells to adhere surfaces, including other cells? List three aspects of archaeal flagella and flagellar motility that are like bacterial flagella and flagellar motility. INCLUDE REFERENCES!Why is it advantageous for the cell membrane to be fluid in nature?Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive bacteria? Explain how the alcohol interacts with: 1) Gram-negative cell wall structures 2) Gram-positive cell wall structures