drugs, microbes--Microbiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Not sterilization - kills non-spore-forming pathogens and lowers overall microbe count; does not kill endospores or many nonpathogenic microbes | Pasteurization
🗑
|
||||
| Microbiostatic | Cold; slows the growth of microbes; Refrigeration 0-15C and freezing <0C
🗑
|
||||
| Lyophilization | freeze drying; preservation;
🗑
|
||||
| Not effective microbial control – many cells retain ability to grow when water is reintroduced | Desiccation
🗑
|
||||
| Desiccation | Gradual removal of water from cells, leads to metabolic inhibition
🗑
|
||||
| Ionizing radiation | used to sterilize medical supplies and food products; gamma rays, X-rays, cathode rays; deep penetrating power that has sufficient energy to cause electrons to leave their orbit, breaks DNA,
🗑
|
||||
| Filtration | Physical removal of microbes by passing a gas or liquid through filter
🗑
|
||||
| Used to sterilize heat sensitive liquids and air in hospital isolation units and industrial clean rooms | Filtration
🗑
|
||||
| Act as surfactants dissolving membrane lipids and coagulating proteins of vegetative bacterial cells and fungi | Alcohols; Ethyl, isopropyl in solutions of 50-95%; Intermediate level
🗑
|
||||
| Antiseptic at low concentrations; strong solutions are sporicidal | Hydrogen Peroxide
🗑
|
||||
| Hydrogen Peroxide | Produce highly reactive hydroxyl-free radicals that damage protein and DNA while also decomposing to O2 gas – toxic to anaerobes; Weak (3%) to strong (25%)
🗑
|
||||
| Detergents and Soaps | Quaternary ammonia compounds (quats) act as surfactants that alter membrane permeability of some bacteria and fungi
🗑
|
||||
| Heavy Metals | Solutions of silver and mercury kill vegetative cells in low concentrations by inactivating proteins; silver nitrate, silver
🗑
|
||||
| common metabolic products of aerobic spore-forming bacteria and fungi. | Antibiotics; molds in genera Penicillium and Cephalosporium;
🗑
|
||||
| By inhibiting the other microbes in the same habitat, antibiotic producers have less competition for nutrients and space. | Antibiotics
🗑
|
||||
| Penicillins and cephalosporins block synthesis of | peptidoglycan, causing the cell wall to lyse.
🗑
|
||||
| Polymyxins | interact with phospholipids and cause leakage, particularly in Gram-negative bacteria.
🗑
|
||||
| A cell with a damaged membrane dies from | disruption in metabolism or lysis.
🗑
|
||||
| usually have a selective action against procaryotes; | antimicrobics
🗑
|
||||
| Antibacterial drugs | antibiotics, synthetic drugs
🗑
|
||||
| Penicillin is the drug of choice for | Gram-positive cocci (streptococci) and some Gram-negative bacteria (meningococci and syphilis spirochete).
🗑
|
||||
| Penicillins Primary problems | allergies and resistant strains of bacteria
🗑
|
||||
| Interferons (INF) | Human-based glycoprotein produced primarily by fibroblasts and leukocytes
🗑
|
||||
| Drug Resistance | Adaptive response in which microorganisms begin to tolerate an amount of drug that would ordinarily be inhibitory; due to genetic versatility or variation; intrinsic and acquired
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
tamiboren
Popular Nursing sets