Core Practical: Drawing specimen from microscope (Edexcel 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
What is the total magnification with a 10x eyepiece and 40x objective lens?
What is the total magnification with a 10x eyepiece and 40x objective lens?
400x
Why should stain be added to transparent specimens?
Why should stain be added to transparent specimens?
To make them easier to see
Which objective lens should be selected first when viewing a specimen?
Which objective lens should be selected first when viewing a specimen?
Lowest-powered
What does resolution mean in microscopy?
What does resolution mean in microscopy?
Distinguishing 2 close points
What drawing technique should be used for microscope diagrams?
What drawing technique should be used for microscope diagrams?
Smooth lines without shading
What is the purpose of an eyepiece graticule?
What is the purpose of an eyepiece graticule?
To measure specimen size
What is a stage micrometer used for?
What is a stage micrometer used for?
Calibrating the graticule
A cell spans 4 graticule divisions. If 1 division = 10 µm, what is the cell size?
A cell spans 4 graticule divisions. If 1 division = 10 µm, what is the cell size?
What is the dependent variable when observing specimens?
What is the dependent variable when observing specimens?
Size of cells observed
Why must care be taken when handling slides and coverslips?
Why must care be taken when handling slides and coverslips?
They are fragile and can cut you