Biology Revision

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Across
  1. 3. Enzyme that digests proteins in the stomach
  2. 4. Structure in muscle where contraction occurs
  3. 6. Digestive process that physically breaks food down
  4. 8. Movement of water across a semi-permeable membrane
  5. 10. Fluid that lubricates joints
  6. 11. Tissue that supports and connects body parts
  7. 12. Type of transport that does NOT require energy
  8. 13. Photoreceptors in the retina responsible for black and white vision
  9. 14. Structure that focuses light onto the retina
  10. 15. Junction between neurons
  11. 17. Long nerve cell extension that carries impulses away from the cell body
Down
  1. 1. Bones protect organs and allow ______
  2. 2. Organelle that produces ATP (energy)
  3. 5. Group of cells working together
  4. 6. Tissue responsible for movement
  5. 7. Structure that controls what enters and leaves the cell
  6. 9. Cell division producing identical daughter cells
  7. 10. Type of neuron carrying signals from receptors
  8. 11. The basic structural unit of life
  9. 16. Muscle protein that works with myosin