5 Questions
What is the main function of aseptic technique?
To keep microorganisms off and prevent contamination
How does a stage micrometer help in calibrating microscopes?
1 stage micrometer unit (SU) equals 0.1 mm
What is the primary action of hand soaps in limiting the spread of pathogens?
Creating micelles around dirt, oil, and microbes
How do sanitizers primarily act against pathogens?
They chemically kill bacteria and viruses
What is the structure of soap molecules that enables them to remove dirt and microbes?
Amphipathic molecules with hydrophilic polar head and hydrophobic tail
Study Notes
Aseptic Technique
- The main function of aseptic technique is to prevent contamination of sterile equipment, surfaces, and specimens with microorganisms.
Microscope Calibration
- A stage micrometer helps in calibrating microscopes by providing a precise measurement of the microscopic field, allowing for accurate calculation of magnification and measurement of microscopic objects.
Hand Soaps
- The primary action of hand soaps in limiting the spread of pathogens is to break down the outer membrane of microorganisms, rendering them inactive.
Sanitizers
- Sanitizers primarily act against pathogens by denaturing proteins, disrupting cell membranes, and interfering with cellular metabolism.
Soap Molecules
- The structure of soap molecules, which consists of a hydrophobic tail and a hydrophilic head, enables them to remove dirt and microbes by emulsifying oils, solubilizing dirt, and allowing for the removal of microbes from the skin.
Test your knowledge of aseptic technique and microscope proficiency with this quiz. Learn about the importance of maintaining a sterile environment and preventing contamination, as well as demonstrating proficiency in using a microscope and calibrating its objectives. Master the use of a stage micrometer and understand its units of measurement.
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