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6. What is the order that organelles in animal cells are found in centrifugation?

  • Nucleus, ribosomes, rough ER, smooth ER, mitochondria
  • Nucleus, rough ER, smooth ER, mitochondria, ribosomes
  • Nucleus, mitochondria, rough ER, smooth ER, ribosomes
  • Nucleus, mitochondria, smooth ER, rough ER, ribosomes

7. What is a supernatant?

  • Liquid left after centrifugation
  • Solid left after centrifugation
  • The apparatus used to separate organelles

8. How are red blood cells adapted for their purpose?

  • Biconcave shape and no nucleus
  • Red colour
  • Small nucleus
  • Flat shape

9. Why does centrifuge solution have to be isotonic?

  • Speed up osmosis
  • Prevent osmosis
  • Denature enzymes
  • Minimize cell activity

10. What is extracellular digestion?

  • The process where cells digest bacteria
  • The way bacteria digest food externally to reproduce
  • A-sexual reproduction

11. What is an organ?

  • A group of tissues with the same function
  • A group of cells with the same function
  • A system such as the digestive system

12. What is the purpose of a buffer?

  • To slow down osmosis
  • To control temperature
  • To control PH
  • To speed up osmosis

13. What are plasmids?

  • DNA in plant cells
  • Chromosomes in all cells
  • Small loops of DNA in bacteria
  • Chromosomes in bacteria

14. What is a eukaryotic cell?

  • A large, complex cell -everything except bacteria
  • A small, simple cell, such as bacteria

15. What is a prokaryotic cell?

  • A small, simple cell such as bacteria
  • A large, complex cell - everything except bacteria

16. What is homogenisation?

  • Mashing and filtering cells to make organelles same consistency
  • Mixing of cells
  • Combining cells together in a centrifuge