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Junior Cert Science

All living things are made up of tiny units called what? Cells
Cells can only be seen by using what instrument Microsocope
What are the two main types of cells Plant and animal
What fo you call the structure that surrounds an animal cell Cell membrane
What is the funstion of the cell membrane It controls what eneters and leaves the cell
What do you call the waterty fluid that fills the cell Cytoplasm
What do you call the part that is known as the brain of the cell Nucleus
What do you call the part that temporarily stores food and wastes Small vacoules
In a plant cell what do you call the part that allows a plants to make their own food Chloroplasts
What do you call the green pigment present in the chloroplast Chlorophyll
In a plant cell what do you call the tough structure that surrounds the cell membrane Cell wall
In a plant cell what do you call the large structure that stores water, sugar and wastes Large vacoule
What are the three differences bewteen plant and animal cells Cell wall, chloroplasts and large vacoule
What do you call the part of the microscope that you look through Eyepiece
What do you call the part of the microscope that magnifies an object Objective lens
In the lab how many objectives lenses are present on a microscope 3
What are the magnification power of the three lenses in the lab X4, X10, X40
What is the magnification of the eyepiece X10
What do you call the part od the microscope where you place the slide Stage
What do you call the part of the microscope that moves the objective lens up and down Focus knob
When making a slide to view under a microscope what do you call the small square piece that you place on top of the sample Cover slip
At what angle should you hold the coverslip over that drop of water 45 degrees
Why should you carefully lower the coverslip on top of the sample To stop air bubbles forming
When using onion cells, what stain should you use Iodine
When using animal cheek cells, what stain should you use Methylene blue
Created by: gcu science
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