Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Quiz 10/24/07
Humphrey Microbiology
| Question | Answer |
|---|---|
| In the growth curve, where does rapid growth take place (doubles every generation)? | ~ Log Phase |
| In the Log Phase microbes are sensitive to: | ~ antibiotics, and anti microbial agents |
| Name some environmental stresses that cells encounter in the stationary phase of the growth curve? | ~ lack of nutrients, lack of H2O, not enough space, metabolic wastes, oxygen, and PH |
| What phase of the growth curve would endospores appear in? | ~ stationary phase |
| Death Phase is due to limiting factors in the: | ~ environment |
| How long could "phase of prolonged decline" posibly take? | ~ months to years |
| Which phase prepares macromolecules for multiplying? | ~ Lag Phase |
| Name 4 physical ways to control microbial growth? | ~ heat treatment, irradiation, filtration, and mechanical removal (washing) |
| Name a chemical way to control microbial growth? | ~ use of antimicrobial chemicals |
| When using physical or chemical ways to control microbial growth, what 2 things determine the method chosen? | ~ Circumstances (home, hospital, lab), and the degree of control |
| Removing and destroying all microorganisms and viruses is called: | ~ Sterilization |
| A process of eliminating most or all disease causing microorganisms and viruses is called | ~ Disinfection |
| In regards to sterilization/disinfection; where does viable (reproducing) still exist? | ~ Disinfection |
| What term is typically toxic to many forms of life that is used to remove organisms from objects? | ~ Disinfectants |
| What are two cool names for Disinfectants? | ~ biocides, and germicides |
| What is a disinfectant that can be used on the skin called? | ~ Antiseptics |
| When an item has been treated to reduce the number of disease causing organisms to a level that is considered safe it is called? | ~ decontaminated |
| Could washing, heat and chemical be used for decontamination? | ~ Yes |
| The term "Sanitized" implies a substantially reduced microbial popultation that : | ~ meets accepted health standards (does not mean control) |
| A term that means kills bacteria? | ~ bactericidal |
| A term that means to prevent the growth of, but does not kill bacteria | ~ Bacteriostatic |
| A term that describes to kill fungi is: | ~ fungicide |
| An inactivated virus is called: | ~ Viricide |
| "Preservation" is the process of delaying : | ~ Spoilage of foods |
| What are 2 ways to do "Preservation"? | ~ By adding growth inhibiting ingredients, or by adusting the storage conditions |
| What is an example of Preservation? | ~ Pasteurization |
| What is pasteuriztion? | ~ a brief heat treatment to reduce the number of food spoilage/diseases causing organisms |
| Hospital equipment that comes in direct contact with somebody is called: | ~ Critical items |
| Two examples of critical items are? | ~ needles, scalpels |
| When medical equipment comes in contact with mucous membrane parts of the body it is called: | ~ Semi-critical items |
| Semi-critical items must be free of all ? and ? | ~ viruses and vegetative bacteria |
| The name of hospital equipment that pose little risk? | ~ Non-critical instruments |
| Non-critical instruments only come in contact with : | ~ unbroken skin |
Created by:
Patrick24g
Popular Biology sets