Microscopy Practical - ChatGPT Flashcards
(16 cards)
What is the purpose of Required Practical 1: Microscopy?
To use a light microscope to observe, draw, and label plant and animal cells.
What is the first step in preparing a microscope slide?
Place a tissue sample on a microscope slide.
Why is a stain added to the sample on the slide?
To highlight structures and make cells easier to see.
What must be done after adding the stain?
Lower the coverslip onto the tissue sample carefully.
What is the initial lens setting when viewing the slide?
Start with low power to locate the cells.
What should you do after finding the cells on low power?
Switch to a higher-powered lens and refocus.
What should be included in microscope drawings?
Drawn cells and a magnification scale.
Why are light microscopes useful in biology?
They help study cells and understand how they work.
What plant tissue is commonly used in this practical?
Onion tissue.
What animal cells are commonly used?
Human cheek cells collected with a cotton swab.
What stains are commonly used in microscopy?
Iodine and methylene blue.
Why must cheek cell swabs be sterile?
To prevent contamination and for safe disposal.
What safety gear should be worn when using stains?
Wear eye and skin protection as stains may irritate.
Why should direct sunlight not be used as a light source?
It can damage your eyes.
What safety concern is there with microscope lamps?
They may become hot—handle with care.
What should you do when cutting plant tissue samples?
Take care to avoid injury.
