Across
- 2. The membrane-enclosed organelle within a cell that contains the chromosomes
- 5. the gelatinous liquid that fills the inside of a cell.
- 6. n organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur
- 7. a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place.
- 9. a colourless, odourless gas produced by burning carbon and organic compounds and by respiration.
Down
- 1. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria
- 3. a green pigment, present in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis.
- 4. used by plants for energy and to make other substances like cellulose and starch.
- 8. the chemical element with the symbol O and atomic number 8
- 10. The strength required to do physical or mental activity