3) Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl? A) Sucrose will move into the cell from a higher to a lower concentration. The cell will undergo osmotic lysis. C) Water will move out of the cell.Furthermore, what will happen if a bacterial cell is pretreated with a lysozyme solution?
What will happen if a bacterial cell is pretreated with a lysozyme solution, then placed in distilled water? 1. Lysozyme will diffuse into the cell. No change will result; the solution is isotonic.
Likewise, when placed in a hypertonic solution a bacterial cell will? Well normally,when you place a bacterium in a hypotonic solution,it ruptures by swelling due to the osmotic gradient created by means of relatively hypertonic solution present inside the bacterial cell,but the process is relatively slower and some are totally resistant to such action by means of their cell wall
Also to know, does gram positive cell wall protect cell hypertonic environment?
It protects the cell in a hypertonic environment. Endospores allow a cell to survive environmental changes.
How do spirochetes and Spirilla differ quizlet?
Spirochetes have a rigid, corkscrew shape while spirilla are helical and more flexible. Spirilla have an external flagella but spirochetes have axial filaments. The cell walls of bacteria are responsible for the shape of the bacteria and the difference in the Gram stain reaction.
What is the difference between Pili and fimbriae?
Fimbriae are bristle like short fibres occurs on the surface of bacteria. Pili are long hair like tubular microfibres like structures present on the surface of bacteria. Fimbriae are present on both Gram positive and Gram negative bacteria. Pili are present only on some Gram negative bacteria.What will happen if a bacterial cell is placed in distilled water?
A bacterial cell is placed in distilled water. Which of the following will happen? There will be no net gain or loss of water in the cell. The cell will shrink.What is osmotic lysis?
Osmotic lysis is the bursting of a cell, aka a "cell explosion" or "cytolysis", because of an overabundance of fluid. The cell's membrane is not large enough to accommodate the excess fluid, causing the membrane to break open, or lyse.What is the role of the flagella in the prokaryotic cell?
Flagella are primarily used for cell movement and are found in prokaryotes as well as some eukaryotes. The prokaryotic flagellum spins, creating forward movement by a corkscrew shaped filament. A prokaryote can have one or several flagella, localized to one pole or spread out around the cell.What will happen if a bacterial cell is placed in distilled water with lysozyme?
What will happen if a bacterial cell is placed in distilled water with lysozyme? A) The cell will undergo osmotic lysis. Water will leave the cell. C) Lysozyme will diffuse into the cell.Where are phospholipids more likely found in a prokaryotic cell?
In a prokaryotic cell, phospholipids are most likely found in the plasma membrane.What types of organisms have a cell wall?
The main kinds of organisms that have cell walls are plants, fungi, and certain prokaryotes (bacterial type cells). In plants, cell walls are mainly comprised of complex polysaccharides (sugar-based polymers) molecules such as cellulose, hemicellulose, and pectin.What does it mean to be Gram positive?
Medical Definition of Gram-positive Gram-positive: Gram-positive bacteria retain the color of the crystal violet stain in the Gram stain. This is characteristic of bacteria that have a cell wall composed of a thick layer of a particular substance (called peptidologlycan).Can eukaryotic cells be Gram positive or negative?
Eukaryotic pathogens stain gram-negative. However, most eukaryotic cells except fungi (including yeast) fail to stick to the slide during the process.Are all prokaryotes gram positive?
Prokaryotes can be further classified based on the composition of the cell wall in terms of the amount of peptidoglycan present. Gram-positive organisms typically lack the outer membrane found in gram-negative organisms and contain a large amount of peptidoglycan in the cell wall, roughly 90%.Do all bacteria have cell walls?
Nearly all bacteria have cell walls made of peptidoglycan. But there is more to a cell wall than just peptidoglycan. In nature, there are two major types of cell walls, Gram-positive and Gram-negative, each with very different structures.What is the function of a gram positive cell wall?
Although the primary function of the cell wall is to provide a rigid exoskeleton for protection against both mechanical and osmotic lysis (694,695) the cell wall of gram-positive bacteria also serves as an attachment site for proteins that interact with the bacterial environment.What makes up the cell wall of bacteria?
Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids. Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.Which cell wall contains porins?
3. Peptidoglycan prevents osmotic lysis in the hypotonic environment in which most bacteria live. 4. The outer membrane is a semipermeable structure that contains pore-forming proteins called porins that allow nutrients to pass through the outer membrane.What do the Monerans lack in their cell structure?
The monerans are distinct from eukaryotic organisms because of the structure and chemistry of their cells. As prokaryotes, they lack the definite nucleus and membrane-bound organelles (specialized cellular parts) of eukaryotic cells.What is the Nucleoid of a bacterial cell?
Nucleoid Definition. The nucleoid is the space within a prokaryotic cell where the genetic information, called the genophore, is found. Prokaryotes are divided into bacteria and archaea, which are both unicellular organisms that contain no membrane-bound organelles. The nucleoid, then, also has no membrane around it.What are some examples of hypotonic solutions?
A common example of a hypotonic solution is 0.45% normal saline (half normal saline). When a patient develops diabetic ketoacidosis, the intracellular space becomes dehydrated, so the administration of a hypotonic solution helps to rehydrate the cells. 
