Science (Biology)

• How might a faulty heart valve be treated?

  replaced with;pig heart valve, artificial mechanical valve
• What is the cause of coronary heart disease?

  A layer of fatty material builds up in the coronary arteries, narrowing them.
• Give an example of a specialised cell and state how it is adapted to carry out its function

  Sperm cell: Tail for swimming. Nerve cell: long to carry information. Xylem cell: no end walls to allow water to move up. Phloem cell: sieve plates to allow movement of sugars
• Link each enzyme to its SUBSTRATE

  Carbohydrase; Carbohydrate, Protease: Protein, Lipase: Lipids
• What is the role of an enzyme

  Speed up biological reactions
• State the principles of organisation starting with the basic building blocks of all living organisms

  Cells, Tissues, Organs, Organ system, Organism
• Name the 3 digestive enzymes

  Carbohydrase, Protease, Lipase