Year10revisionpowerpoint8

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Year10revisionpowerpoint8

  1. 1. Miss Fleming’s Amazingly Brilliant Biology Quiz That You Have To Learn For Your Exam!
  2. 2. 1 2 8 3 4 5 6 10 9 7 11 12 18 13 14 15 16 20 19 17 21 22 28 23 24 25 26 30 29 27 31 32 38 33 34 35 36 40 39 37 41 42 48 43 44 45 46 50 49 47 Instructions Select a number, and try to answer the question that appears on the screen. Try to learn as many as you can for your exam! Keep re-capping each question till you can answer all questions correctly. Make sure your sound is turned up! To exit the PowerPoint, you may have to press escape on your computer a few times… good luck!
  3. 3. Wrong! Back to Questions
  4. 4. Wrong! Back to Questions
  5. 5. Wrong! Back to Questions
  6. 6. Wrong! Back to Questions
  7. 7. Wrong! Back to Questions
  8. 8. Well Done! Back to Questions
  9. 9. Well Done! Back to Questions
  10. 10. Well Done! Back to Questions
  11. 11. Well Done! Back to Questions
  12. 12. Well Done! Back to Questions
  13. 13. 1. What is the name of the hormone that controls blood sugar levels? Insulin Glucagon
  14. 14. 2. What does the lens do? Carry nerve impulses Focus light rays
  15. 15. 3. What does the optic nerve do? Carry nerve impulses React to light
  16. 16. 4. What does the retina do? Focus the light React to light
  17. 17. 5. Why is it important for the eye to adjust to bright light? To prevent damage to the retina To react to light and focus
  18. 18. 6.How does the eye accommodate? lens changes shape using circulatory muscles/ suspensory ligaments to focus on objects at different distances lens changes shape using the cornea to focus on objects at different distances
  19. 19. 7. Why is poor eye accommodation a problem? Cannot judge depth so may cause a person to fall over due to lack of binocular vision cannot adjust focus quickly from close to distant objects because of weak muscles/stiff ligaments
  20. 20. 8. How do you treat a blocked coronary artery? Bypass surgery Artificial replacement
  21. 21. 9. How do you treat damaged heart valves? pacemaker Artificial replacement
  22. 22. 10. How does the pacemaker control the heartbeat? SAN sends or generates impulses causing atria to contract The pacemaker sends messages of electrical current through the heart
  23. 23. 11. What are the two types of pacemaker cells which control heart rate called? AVN and SAN AMS and NAV
  24. 24. 12. How does sweating cool the body? Vapourisation (requires kinetic/ energy) evaporation (requires heat / energy)
  25. 25. 13. What word describes keeping the body temperature constant? homeostasis insulation
  26. 26. 14. Breathing and heart rate remain high after exercise to...? Pump blood full of oxygen around the body to oxidise the muscles Break down lactic acid after anaerobic respiration
  27. 27. 15. S weat glands help to control the temperature of the body by… ? Releasing more sweat which evaporates taking heat from skin Releasing liquid/ plasma as part of a negative feedback mechanism
  28. 28. 16.Which part of the kidney regulates salt levels ? A: ascending loop of henle C: glomerulus
  29. 29. 17.Which area of the body controls the heart beat? hypothalamus pacemaker
  30. 30. 18. What hormone can alter heart rate? adrenaline testosterone
  31. 31. 19. What are the air sacs in the lungs called? villi alveoli
  32. 32. 20. How does oxygen enter the body? Diffusion from a high concentration to a low concentration Diffusion from a low concentration to a high concentration
  33. 33. 21. Why are alveoli thin? Short diffusion distance High concentration gradient
  34. 34. 22. How do you know B and C are arteries? They carry blood towards the heart They carry blood away from the heart
  35. 35. 23. Why do ventricles have thicker walls than atria? Greater force needed/ higher pressure needed Less force needed/ smaller pressure needed
  36. 36. 24. What happens if valves don’t work? Backflow is prevented Backflow is not prevented
  37. 37. 25. Why is it an advantage to have two ventricles (instead of one like fish)? Higher pressure is possible and better flow rate to tissues Higher pressure is possible and oxygenated and deoxygenated blood is separated
  38. 38. 26. What type of nerve takes signals to the muscles? Motor neurone Relay neurone
  39. 39. 27. What type of nerve takes signals away from the skin? Sensible neurone Sensory neurone
  40. 40. 28.Why must people be careful with prosthetic (artificial) limbs? They have no nerves so can’t feel pain They have too many nerves so are in constant pain
  41. 41. 29. What is diffusion? Particles concentrating so they can move through a net Net movement of particles from a high concentration to a low concentration
  42. 42. 30. What is the name of the condition when a person’s internal body temperature drops too low? hypothermia hyperthermia
  43. 43. 31.Why do people look red in the face when they get hot? Vasodilation of capillaries Vasoconstriction of capillaries
  44. 44. 32. What part of the brain monitors body temperature? hypothalamus hyperthermia
  45. 45. 33. How does vasodilation cool the body? It doesn’t, vasoconstriction cools the body- this is a trick question Brings blood to the surface of the skin so heat can escape
  46. 46. 34. How is a villus in the small intestine adapted for diffusion of food particles? Thin wall, large surface area Small, good blood supply
  47. 47. 35. Capillaries are better than arteries for diffusion because…? They are faster at diffusion and carry more blood They are thinner and there are lots of them
  48. 48. 36. You work out BMI using the following calculation…? Mass in kg divided by height in metres squared Height in metres squared divided by mass in kg
  49. 49. 37.If your BMI is 26, you are? overweight Just right
  50. 50. 38. Your daily recommended protein intake is known as your? RDA RPD
  51. 51. 39. Why doesn’t everyone eat animals like chickens etc? They might choke on the fur or beak Religion or ethical reasons
  52. 52. 40. What does the cornea do? Refracts light Reflects light
  53. 53. 41. What is the iris for? To look nice and colourful Adjust levels of light reaching the retina
  54. 54. 42. Why do some people need a lens replacement? So the focused image lands correctly on their retina The lenses on their glasses are too dirty to see through
  55. 55. 43.One way of curing short sight is? Laser surgery A convex lens
  56. 56. 44. What causes colour blindness? Genetic/ hereditory Not being able to tell the difference between reds and greens
  57. 57. 45.Name one simple sugar? starch glucose
  58. 58. 46. What food group do sugars belong to? carbohydrates fats
  59. 59. 47. Where does glucose enter the blood stream? Cilia in the colon Small intestine
  60. 60. 48. What does insulin do? Converts glucose to glycogen Converts glucagon to glycogen
  61. 61. 49.Where does insulin work? Mostly the liver and muscles Mostly the pancreas and liver
  62. 62. 50. Insulin…? Converts glucose to glycogen Breaks down glucose to glycogen

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