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6. Which of these is the correct description of osmosis?

  • Using energy from respiration, the movement of particles across a partially permeable membrane from a high concerntration to a low concerntration
  • The diffusion of water particles from a high concertration to a low concertration through a partially permeable membrane
  • The diffusion of water particles from a low concertration to a high concertration through a partially permeable membrane
  • Using energy from respiration, the movement of particles across a partially permeable membrane

7. What controls the movement of the ribcage?

  • Intercostal muscles
  • Thorax
  • Alveoli
  • Trachea

8. Which of these is a response your body makes when you are hot?

  • Blood vessels widen
  • You release more water through urine
  • Hair stands up
  • Muscles contract

9. What are nephrons?

  • Small fitration units
  • Membranes between blood vessels and Bowmans capsule
  • A part of the blood which is filtered and then reabsorbed in the kidneys

10. Which of these is NOT a component of blood?

  • Red blood cells
  • Glands
  • White blood cells
  • Platelets
  • Plasma

11. Which of these is NOT an adaptation of red blood cells?

  • Having the ability to change shape
  • Having a large surface area
  • Having no nucleus

12. Which of these is NOT an adaptation of alveoli for maximising the diffusion of CO2 and O2?

  • Huge surface area
  • Very thing walls
  • Moist lining for dissolving gases
  • Cool temperature for condensing gases
  • Good blood supply

13. Old fashioned lungs were used before new ventilators, what was the problem with them?

  • Emitted too much harmful radiation causing cancers later on in life
  • Causes damage occasionally if lungs cannot cope with artificial air eg burst alveoli
  • They interferred with blood flow to the lower body
  • They didnt work for everybody

14. What is the top part of your body called containing the lungs and heart?

  • Thorax
  • Brochus
  • Trachea
  • Alveoli

15. What is the thermoregularatory centre in the brain?

  • The hypothalamus
  • The pituitary gland
  • The ADH

16. What is the function of valves?

  • To stabilise blood sugar levels
  • To prevent blood clots
  • To prevent backflow of blood
  • To keep blood pressure content

17. Which of these carry blood away from the heart?

  • Valves
  • Capillaries
  • Arteries
  • Veins

18. Which of these is made of dead cells?

  • Xylem
  • Phloem

19. The transpiration stream is a side effect of what reaction in plants?

  • Release of oxygen into the atmosphere
  • Evaporation
  • Photosynthesis
  • Absorbtion of minerals and ions from the soil

20. Which of these statements is correct for transportation in plants?

  • The phloem tube transports food in both directions, the xylem tube transports water and minerals upwards only
  • The xylem tube transports food in both directions, the phloem tube transports water and minerals upwards only
  • The phloem tube transports food upwards only, the xylem tube transports water and minerals in both directions
  • The phloem tube transports water in both directions, the phloem tube transports water and minerals upwards only