Higher Biology Revision

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Across
  1. 1. muscle fibres which are short lived and have few mitochondria and produce ATP through fermentation.
  2. 8. A false drug which has the appearance of a real one but has no affect.
  3. 9. This receives messages from other cells in the Neuron.
  4. 11. The sperm is mixed with fluids produced by the ________ gland.
  5. 12. The removal of a nucleotide from the DNA sequence.
  6. 13. A mutation that alters the amino acids produced.
  7. 14. The contraction of the heart.
  8. 15. Enzyme which joins chunks of DNA together.
Down
  1. 2. A molecule that competes with the substrate to bind with the active site of an enzyme.
  2. 3. In glycolysis 2 ATP molecules are required to produce 4, this is know as the _________ phase.
  3. 4. What the ovum is surrounded by in the ovaries.
  4. 5. The first type of cell produced after fertilisation.
  5. 6. _______ stimulates sperm production.
  6. 7. Cervical mucus becomes less _______ during a females fertile period.
  7. 10. The Krebs cycle takes place within the _______ of the mitochondria.