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Plant Cells

KS3 Key terms

TermDefinition
cell wall a tough outer layer of the cell, which contains cellulose to provide strength and support to the plant
cytoplasm the liquid that makes up most of the cell in which chemical reactions happen. This is mainly water.
cell membrane a flexible outer layer that surrounds the cell and controls which substances can pass into and out from it.
nucleus this contains the genetic material (DNA) of the organism and controls the cell’s activities.
mitochondria tiny parts of cells floating in the cytoplasm where energy is released from glucose from food.
vacuole a space inside the cytoplasm that contains a watery liquid called cell sap. It keeps the cell firm
chloroplasts structures found in the cells of green parts of plants only (leaves and stems) which contain a green pigment called chlorophyll, in which photosynthesis occurs.
root hair cell large surface area to absorb water and minerals from the soil
palisade cell contains lots of chloroplasts for maximum photosynthesis
CO2 + H2O = ? C6H12O6 + O2
Carbon Dioxide + Water = ? Sugars + Oxygen
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