Biology

12345678910111213
Across
  1. 3. The two stages of protein synthesis are ___ and translation.
  2. 5. What enzyme breaks down lipids?
  3. 7. A type of monosaccharide.
  4. 9. In an animal cell, what organelle contains the DNA?
  5. 11. A characteristic controlled only by environmental factors
  6. 12. Tubes of the circulatory system that carry oxygen-depleted blood towards the heart.
Down
  1. 1. Is oxygenated blood lighter or darker in colour?
  2. 2. What does one gene encode?
  3. 4. A hormone that controls the menstrual cycle and human reproduction.
  4. 6. What organelle keeps a cell rigid by pushing outwards?
  5. 8. A process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
  6. 10. A main structure of the eye.
  7. 13. What type of cells are unspecialised?