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What does the alcohol or iodine do to the organisms in the hanging drop preparation of hay infusion?
Wiki User
∙ 13y ago
it makes the organism stop moving
Wiki User
∙ 13y ago
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What is the value of a hanging-drop preparation?
Hanging drop preparation is very valuable as it allows for a truer research capability. Hanging drop preparation offers longer observation abilities.
How is hanging with friends scientific?
Hanging with friends is like organisms in a community.
Aside from motility what facts learned from hanging drop preparation?
The hanging drop preparation can study the motility over a longer period of time, but it is more difficult to examine than a wet mount. Wet mount is preferable to a hanging drop slide when using phase contrast optics.
What specimen preparation is best for viewing cell motility?
hanging drop
What is the Motion of pseudomonas fluorescens in hanging drop preparation?
Should be flagellar motion since it has falgella
What advantages does hanging drop preparation have over a wet mount preparation?
Hanging drop slide is more resistant to evaporation because of the concave depression of the slide placed over the cells along with the petroleum jelly prevents drying. Wet mounts can dry out fairly quickly.
Why is petroleum jelly used in hanging drop method?
This type of sealing material is used primarily to reduce evaporation of liquid and to eliminate air current in the preparation.
What is the purpose of hanging drop technique?
The purpose of the hanging drop technique is a method in which a drop of bacterial suspension is enclosed in an air-tight chamber prepared in a special depression slide. It allows you to view living organisms.
Can the hanging drop method be used to examine other organisms?
Hangng drop method is used for bacterial examination of fresh preparations-- meaning those which are alive so you can observe their motility, its usually true motility or the brownian movement. This is accomplished by having a drop of liquid preparation into a concave slide with its circular sides filled with vaseline to prevent evaporation. then a cover slip is applied. I dunno what you mean by your question by " other organisms" obviously you can only apply it to bacteria. examples like Staphylococcus aureus, G. tetragena or P. vulgaris.
Would you expect Brownian motion to increase the longer you observe a hanging drop preparation?
Just by the sheer fact that any vibration of any kind can be considered Brownian motion for a hanging drop test. the longer you observe your bacteria, the more chance there are of Brownian motion interfering with your motility test ( I assume you're talking about the motility hanging drop, right?). It is because of this fact that the hanging drop test is quickly falling out of favor for more secure tests for motility, the semi-solid media being one of them.
What is difference between homicidal hanging and suicidal hanging?
Homicidal hanging is one person hanging hanging another person; suicidal hanging is one person hanging themselves.
What is burr in spot welding?
Poor tip preparation, and poor alignment of electrodes, excessive current and hold time will all contribute to burrs,
