Science Cells

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Across
  1. 3. an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
  2. 8. in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins .
  3. 9. (of an organism or part) having or consisting of many cells.
  4. 10. a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells.
  5. 11. a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
  6. 13. refers to the act or the means by which a molecule or ion is moved across the cell membrane or via the bloodstream.
  7. 17. is the place in a plant cell where photosynthesis happens.
  8. 18. any of the specialized structures within a cell that perform a specific function
  9. 19. also known as the plasma membrane
Down
  1. 1. the material or protoplasm within a living cell, excluding the nucleus.
  2. 2. a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
  3. 4. is a cellular organisational level between cells and a complete organ.
  4. 5. Turning on the Powerhouse
  5. 6. a dense organelle present in most eukaryotic cells
  6. 7. in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins .
  7. 11. is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration.
  8. 12. (of protozoans, certain algae, spores, etc.) consisting of a single cell.
  9. 14. is a type of diffusion that, in biology, is usually related to cells.
  10. 15. is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input.
  11. 16. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.