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Stack #93460
Micro - gram pos & Neg cells/structures
| Question | Answer |
|---|---|
| Cell Wall | Bacteria have two basic cell wall structures referred to as gram positive and gram negative. |
| Consists of a single cytoplasmic membrane surrounded by a highly cross-linked, thick layer of peptidoglycan. | gram=positive cell: other components besides the thick layer of peptidoglycan are various surface proteins |
| The thick layer of a gram-positive cell is made of | peptidoglycan |
| This cell's wall contains an inner cytoplasmic membrane, a thin layer of peptidoglycan, a periplasmic space and an outer membrane. | gram-negative |
| The outer membrane of this bacteria's cell wall is asymmetric and contains LPS (lipopolysaccharide, known as endotoxin. | gram-negative |
| Know and locate these structures within the bacteria cell | pili or fimbriae, flagella, capsules, and spores. |
| Has a singular cell wall | gram positive |
| Has an inner cellular and outer membrane, a thin layer of peptidoglycan, lightly crosslinked and pore proteins. | gram negative |
| has a thick layer of highly crosslinked peptidoglycan, teichoic acid, lipoteichoic acid and a single cellular membrane | gram-positive |
| Do not contain a nucleus | Bacteria |
| example from lab of an aerobic gram-positive Rods (spore former) | Bacillus anthracis (anthrax) and bacillus cereus |
| An example from Lab of an aerobic gram positive Rods (Non-spore former) | corynebacterium diphtheriae (diptheria) and Listeria monocytogenes(meningitis) |
| The gram-positive cocci encompass these three genera: | Staphylococcus, Streptococcus and Enterococcus |
| Food Poisoning Bacteria | Staphylococcus aureus (gram-positive cocci that form clusters) |
| Tenderness and pain around catheters and shunts, it's slime layer adheres to them | Staphylococcus epidermidis (normal skin flora usually transmitted through surgical placement of valves, catheters and shunts) |
| Gram-Negative Cocci | Neisseria gonorrhoeae |
| Silver Nitrate was put in newborns eyes because of this bacteria | Neisseria gonorrhoeae |
| The largest group of bacterial human pathogens | gram-negative rods |
| Pneumonia and meningitis | Haemophilus influenzae (example of gram-negative rod) |
| Bordetella pertussis | Whooping cough (example of gram negative rod) |
| ?Cannot grow in the presence of atmospheric oxygen | anaerobes |
| Anaerobes form ____ if they are gram positive | spores |
| Example of anaerobe, spore formation, gram pos rod, associated with deep puncture wounds, spores contaminating soil | Tetanus |
Created by:
tamiboren
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