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Nat 5 Unit 2 NAB Revision
1.
2.
3.
4.
5.
What is a tissue?
What is an organ?
What is a system?
How are questions 1-3 linked?
Describe the structure of a red blood cell and how does this relate to
its function.
6. Describe the structure of a sperm cell and how does this relate to its
function.
7. Describe the structure of a phloem cell and how does this relate to its
function.
8. What is a stem cell?
9. What are the two types of stem cell?
10. Are stem cells specialised or unspecialised?
11. What can humans use stem cells for?
12. What are the ethical issues in the use of stem cells?
13. Where does growth happen in plants?
14. What are the two different types of growth sites on plants?
15. What are the three sections of the brain?
16. What are the functions of each of the three parts of the brain?
17. What is the central nervous system made up of?
18. Describe a reflex arc?
19. What connects/communicates between neurons?
20. What is a synapse?
21. What is a reflex action?
22. What are the three types of neurons?
23. What is the name of the hormone system?
24. What are hormones?
25. Where are hormones attracted to and then attached to?
26. What are the receptors that detect blood glucose levels in the blood?
27. Where are these receptors found?
28. What is the hormone that is released when blood sugar levels are
high?
29. What is the hormone that is released when blood sugar levels are low?
30. What are the two hormones that are produced in glucose control?
31. How does adrenaline override this process?
32. What is diabetes?
33. What are the consequences of this disease?
34. What is the treatment?
35. What is reproduction?
36. What are the male sex cells called and where are they produced?
37. What are female sex cells called and where are they produced?
38. What are the gametes of humans?
39. What is fertilisation?
40. Where does it happen in humans?
41. What are the male sex cells called in flowers and where are they
produced?
42. What are female sex cells called in flowers and where are they
produced?
43. What is pollination?
44. Describe the formation of pollen tube in a flower.
45. What is variation?
46. What is continuous variation?
47. What is discontinuous variation?
48. What is a zygote?
49. What does phenotype mean?
50. What does genotype mean?
51. What is a chromosome made of?
52. What does haploid mean?
53. What does diploid mean?
54. What does heterozygous mean?
55. What does homozygous mean?
56. What does a monohybrid cross demonstrate?
57. What is an allele?
58. What is polygenic inheritance?
59. What factors affect transpiration in plants?
60. What is the function of xylem cells in water transport?
61. What is the function of phloem cells in water transport?
62. Describe the structure of stomata and their function?
63. Where are stomata found?
64. Name the four chambers of the heart.
65. What kind of tissue is the heart primarily made of?
66. Where does the deoxygenated blood flow in the heart?
67. Where does the oxygenated blood flow in the heart?
68. Describe how valves work in the heart?
69. Describe the structure of veins and their function.
70. Describe the structure of capillaries and their function.
71. Describe the structure of arteries and their function.
72. Why is the muscle in the heart so thick?
73. What is the purpose of the coronary artery?
74. What is the red pigment found in red blood cells?
75. What organs are involved in gas exchange?
76. What gas moves into the blood?
77. What gas moves out of the blood?
78. What is the process called that allows the movement of the gases?
79. Describe the internal structure of the lung.
80. What is peristalis?
81. Describe how it works?
82. Describe the route of food through the digestive tract.
83. What is the role of villi in digestion?
84. What are the consequences of a high fat diet?
85. What are the consequences of a high salt diet?
86. What are the consequences of a lack of exercise?
87. What are the consequences of smoking tobacco?
88. What are the consequences of drinking alcohol?
89. What are the effects of stress in humans?
90. What are the adverse effects of poor lifestyle choices?
91. What are the effects of toxic heavy metals?
92. What are the effects of carbon monoxide poisoning?
93. What are the effects of radiation?