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BIOLOGY NOTES
Friday, 3 March, 2023
7:31 PM
The two types of cells that are in subtopics 1
...
2 are plant cells and animal cells
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As shown in the diagram below, the unique feature of a plant cell is
that it contains an organelle known as chloroplast which is used to turn light energy into food in a
process called photosynthesis
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The cell membrane helps to control what goes in and out of the cell
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The sap
vacuole or in the diagram below , portrayed as a permanent vacuole, helps to store sugars dissolved
in water
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Finally,
the cytoplasm makes chemical reactions that keep a plant cell alive
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An animal cell
does not have chloroplast, sap vacuole and cell wall
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Humans are made of animal cells
Microscopes
Microscopes are actively used by scientists to help see microorganisms such as cells, that cannot be
seen with the naked eye
...
Firstly, the
eyepiece is used for viewing the organism through