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Life Functions – Literacy Chart Vocabulary Term Book/internet
Life Functions – Literacy Chart Vocabulary Term Book/internet

... vascular plant that functions primarily in transporting organic food materials (e.g. sucrose) from the leaf to all the parts of the plant. ...
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Directions: For each organelle you need to, draw a picture of the

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Possible Next Steps –S1 Cells

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Extra Membrane Ideas P.P - SchoolWorld an Edline Solution

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Plasma Membrane (cell membrane)

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Cell_analogies_collageAC 09

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Cellular Structure Teacher Copy

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General Plant M .Sc. Huda Jassim Al-Tamimi Lab-2

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Intro to Cells and Cell Parts

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Cell wall



The cell wall is a tough, flexible and sometimes rigid layer that surrounds some types of cells. It surrounds the cell membrane and provides these cells with structural support and protection. In addition, the cell wall acts as a filtering mechanism. A major function of the cell wall is to act as a pressure vessel, preventing over-expansion when water enters the cell. Cell walls are found in plants, fungi and prokaryotic cells but not in mycoplasmas.The composition of the cell wall varies between species and may depend on cell type and developmental stage. The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicellulose and pectin. In bacteria, peptidoglycan forms the cell wall. Archaean cell walls have various compositions, and may be formed of glycoprotein S-layers, pseudopeptidoglycan, or polysaccharides. Fungi possess cell walls made of the glucosamine polymer chitin, and algae typically possess walls made of glycoproteins and polysaccharides. Unusually, diatoms have a cell wall composed of biogenic silica. Often, other accessory molecules are found anchored to the cell wall.
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