Structures and Functions in Living Organisms 0.0 / 5 ? BiologySection 1: Revision guideIGCSEEdexcel Created by: katy_d_3Created on: 12-03-14 19:47 4210971586 Across 1. Can only reproduce inside living cells. (7) 5. Contains the genetic material that controls the cell's activities (7) 6. A gel-like substance where most of the cells chemical reactions happen (9) 7. Multicellular, contain chloroplast and have cell walls made of cellulose (6) 8. Multicellular, nervous coordination and store carbohydrates as glycogen (7) Down 1. Contains cell sap which helps to support the cell. (7) 2. Forms the outer surface of the cell and controls what goes in and out (4, 8) 4. They have a circular chromosome of DNA (8) 9. Plants: made of cellulose (4, 4) 10. Can be single-celled, cell walls made of chitin and most feed by saprotrophic nutrition (5)
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