Required practical - Using light microscope (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why is onion skin particularly good for microscope work?
Why is onion skin particularly good for microscope work?
It peels away easily in single layers
What is the purpose of adding iodine solution to the onion layer?
What is the purpose of adding iodine solution to the onion layer?
To make cell structures easier to see
At what angle should you first place the coverslip edge?
At what angle should you first place the coverslip edge?
45 degrees
Which objective lens power should you start with?
Which objective lens power should you start with?
Lowest power
Which focusing wheel should you use first when observing?
Which focusing wheel should you use first when observing?
Coarse focusing wheel
What is the eyepiece on a microscope?
What is the eyepiece on a microscope?
The lens at the top you look through
What provides light to illuminate the specimen from below?
What provides light to illuminate the specimen from below?
A mirror or lamp
What must you write on your microscope drawing?
What must you write on your microscope drawing?
The magnification used
Why should you wear eye protection when using iodine solution?
Why should you wear eye protection when using iodine solution?
It can stain skin and damage clothes
Which piece of equipment is used to handle the onion skin?
Which piece of equipment is used to handle the onion skin?
Forceps