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I had growth after 24 hours in the L. acidophilus culture. There was only slight growth in the S. epidermis after 48 hours.
A. What is the differencebetween a bactericidal and bacteriostaticagent? Between...
bactericidal and bacteriostaticagent? What is the differencebetweensterilization and disinfection?
Bactericidalagents kill bacteria while bacteriostaticagents inhibit the growth of bacterial cells. Sterilization is the eliminaten of all viable organisms in or on an object. Disenfection is a...
1. What is the differencebetween a bactericide and something that is bacteriostatic?
Bactericidal- Drug that kills bacteria Bacteriosstatic- Drug that limits or slows the growth of bacteria
a. What is a germicide...
appropriate applications of ionizing and UV radiation for sterilization. (see question 9)
List the factors related to effective disinfection.
Concentration of disinfectant: more isn’t always better, some need water added to work
Organic matter: have to clean the item off before disinfecting
, and illness allows educated decisions on which agents to use. We compared the bactericidal effectiveness of 6 common agents widely used by the general public against 3 common bacterial organisms.
Sterilization kills all organisms in or on an object or substance. Disinfectants and...
treatment of a bacterium such that the organism is killed. Bacteriostatic refers to a treatment that restricts the ability of the bacterium to grow.
Bacteriocidal methods include heat, filtration, radiation, and the exposure to chemicals. The use of heat is a very popular method of sterilization in...
3.1 Susceptibility to EGCG
3.2 Susceptibility to Quercetin
3.3 Susceptibility in Synergy
4.1 Similar Studies on EGCG
4.2 Similar Studies on Quercetin
4.3 Synergy between flavonoids and popular antimicrobial agents
4.4 Problems encountered...
STERILIZATION AND DISINFECTION
BacteriostaticAgent: An agent that inhibits the growth of bacteria, but does not necessarily kill them. Bactericide:
An agent that kills bacteria. Most do not kill Endospores.
An agent that kills spores.
Soap, and detergents
Combine with sulfur atoms in cysteine and alters the 3d shape of proteins
Crosslink amoni, hydroxyl, sulfhydryl, carboxyl
• Sketch and describe the five stages of the lytic replication cycle as it typically occurs in bacteriophages
• Compare and contrast the lysogenic replication cycle of viruses with the lytic cycle
• Explain the differencesbetween bacteriophage replication...
4. Moist heat kills microorganisms by
A) irreversible coagulation of proteins.
B) destruction of carbohydrates in the cell wall.
C) denaturation of nucleic acids.
D) dissolving the capsule.
5. Typical conditions used for sterilization are
A) 100°C for 10 minutes.
agents can be classified as bactericidal (kills organisms) or bacteriostatic (prevents growth of organism). Both types are effective therapeutically although both is also rely on natural host defences to eradicate the pathogenic micro-organism. Both types can be acts synergistically together or...
Differencesbetween Bacterial and Viral Infections
Brown Mackie College
Bacteria and viruses are usually the primary cause of human and animal diseases, and even though the manifestations of both microorganisms are similar in nature, both bacteria...
therefore making the distinction betweenbacteriostatic and bactericidalagents less obvious.
The increase of the standard life expectancy in the 21st Century is due to the success of antimicrobial agents such as antibiotics and antiseptics. Antibiotics are a chemical which is created by...
the basic differencesbetween the four types of light microscopes (brightfield, darkfield, phase contrast and fluorescent)? What are their applications?
6. How do electron microscopes differ from the light microscopes? What are their advantages and disadvantages?
7.* Define the following terms...