Gram type your answer... bacteria have a thick layer of peptidoglycan and a single membrane layer. Gram type your answer... membrane layers with a thin layer of peptidoglycan between them. bacteria have 2 cell
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- Which of the following correctly describes one difference between gram-positive bacterial cells and gram-negative bacterial cells? Gram-positive bacteria have less peptidoglycan Gram-positive bacteria can all form endospores Gram-positive bacteria have a thicker cell membrane Gram-positive bacteria have more peptidoglycanFigure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell wall formed from peptidoglycan. b. Gram-positive bacteria have an outer membrane. c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.-------- 1. Prokaryotic organisms like bacteria use the flagella for movement. What is the basic structure of a flagellum 2. Motile bacteria have different numbers and arrangements of flagella. What are they? Cite their differences.
- Which of the following correctly describes one difference between gram-negative bacterial cells and gram-positive bacterial cells? Gram-negative bacteria have more flagella Gram-negative bacteria all have capsules Gram-negative bacteria have an outer lipopolysaccharide layer Gram-negative bacteria are smaller than gram- positive bacteriaI need the answer as soon as possibleMycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true? They are gram-negative. They are subject to lysis in hypotonic conditions. They lack a cell membrane as well. They should contain less cellulose than do bacteria that possess cell walls. They possess typical prokaryotic flagella.
- 4) Bacteria- and cells in general- are enclosed in a semipermeable membrane. Use this information to explain why jam is "preserved" and why candies don't quickly get consumed by bacteria, like other foods like fruits, bread, milk, etc... Shouldn't the bacteria love to feed on all that delicious sugar in the jam and candies?IgA Proteases are enzymes that... destroy antibodies in mucus secretions cause blood to clot break down collagen break down polysaccharides that hold cells togetherYou conduct a gram stain on a bacterial culture. After counterstaining with safranin, cells are purple. What statements are true about the bacterial cells? (Choose all that are true.) Group of answer choices The cell wall of these cells helps to maintain cell shape and protect the cell from osmotic lysis. The cells have teichoic acids that have many important functions in gram positive bacteria Cells have a periplasmic space and a thin layer of peptidoglycan. The cells produce endotoxin (LPS) and may cause septic shock in an infected individual.
- Let’s say you wanted to look at cells of Bacillus cereus, which are rod-shaped cells that are about 4 µm long. If you were observing B. cereus with a microscope using the high-power lens, how big would the cells appear to be when you look at them?which of the following best describes the gram positive (+) cell wall: O the peptidoglycan chain wraps around the cell only 1-2 times O a layer of polysacharrides and proteins ONLY has an outer membrane enclosing a thin layer of peptidoglycan O the peptidoglycan chain wraps around the cell many times O made of phospholipid bilayer onlyWhich of the following statement about 3 bacterial cell wall is incorrect Peptidoglycan consists of long polysaccharide chainscross-linked with amino acids. The cell wall establishes a bacterium as a coccus, bacillus, or spirillum. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids. Gram- negative cells have a membrane both inside andoutside their cell walls. Gram-positive cells have more peptidoglycan in their cell walls gram-negative cells