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The Cell

Chapter 3

living things are made of cells
zygote original cell humans grow from
When cells divide to form two identical cells we call this cell division
on the outside of an animal cell you find the membrane
watery liquid found in cells cytoplasm
control center of cell Nucleus
the nucleus contains DNA
on the outside of a plant cell you find the cell wall
a group of similar cells which carry out the same function Tissue
blood is an example of animal tissue
xylem is an example of plant tissue
two or more tissues working together an organ
the heart is an animal organ
roots, stems, leaves and flowers are plant organs
a number of organs working together a system
the circulatory system consists of the heart and lungs
a living thing is called an organism
the eyepiece lens magnifies an object 10 times
to find total magnification multiply the value on the eyepiece lens by the objective lens
the coarse focus is used when using low power
the fine focus is used when using high power
the glass slide is left on the stage
a slide is placed on top of an onion this is called a cover slip
onion cells are stained using iodine
lower cover slip onto onion using a mounted needle
Why are onion cells used when viewing cells under the microscope they are large
Created by: PDervin