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Cells and Organisation (Organs (An organ system is a group of Organs…
Cells and Organisation
Organs
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The heart pumps blood through the body and the blood carries oxygen to the lungs and can carry food from the intestines
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An organ system is a group of Organs working together e.g: Nervous system is made up of the Brain,Spinal cord and sensory organs to help the body have control
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Each cell, whether it is an animal or a plant cell has:
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Plant cells also have
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Often have a permanent, liquid filled thing called a vacuole
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DNA stands for deoxyribonucleic acid and contains our genes of who we are given to us by our parents
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Specialized cells
A specialized cell is when a cell does one job only and has had its cell structure changed to do that job
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Diffusion
Particles such as molecules can spread out through liquids and gasses but not solids. This is called Diffusion
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Unicellular organisms
Unicellular organisms only have one cell in them but they still show signs of structure adaptation in order to function. Examples of this is the Amoeba which bulges tis cytoplasm to move and the Euglena which can either feed on other organisms or get food from the sunlight
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