Biology questions
1. What is a cell?
2. What is the function of the nucleus inside the cell?
3. List two types of cells
4. Outline one difference between the two named cells in question (3)
5. Define the term osmosis
6. Which of the two water solution or sugar solution can move through the selective
permeable membrane?
7. What is the function of the neuron cell in an animal body?
8. Name the three types of nerve cells found in humans
9. Define the term photosynthesis
10. Outline the requirements for photosynthesis to take place
11. Give the end products of photosynthesis
12. Give one reason why a bone is considered to be a living tissue
13. What do you understand by the term digestion?
14. List four organs of the digestive system
15. Where in the digestive tract is water absorbed in large amounts?
16. What do we call the movement of the food bolus?
17. What substance is produced by the liver during digestion?
18. Where is the substance named in question (16) stored?
19. What is the function of the substance in question (16) in digestion?
20. What hormone is produced by the pancreas?
21. What is the function of the adrenal gland?
22. Define the term homeostasis
23. List three sense organs in the human body
24. Define excretion
25. What is the function of the kidneys in excretion?
26. Which blood vessel carries blood from the heart to the kidney
27. What is the function of the heart?
28. What do you understand by the term heart rate?
29. What is the difference between a vein and a artery?
30. List two types of joints in the human body
31. What is the function of synovial fluid
32. Name the longest bone in the human body
33. What is the function of the retina in the eye?
34. What are the causes of blindness in humans?
35. Name the largest part of the brain
36. Which part of the brain is responsible for controlling automatic processes in the body
37. Give an example of an automatic process
38. What is the function of the celleberum of the brain
39. What are the negative effects of smoking to a person
40. List three causes of heart coronary disease
41. Outline two effects of having an unbalanced diet
42. What are the three types of muscles found in the human body?
43. Which special muscle is the heart made of?
44. A food nutrient that works on repairing damaged tissue is...
45. What is the function of fats in a diet
46. Out any two function of water in the human body
47. Define transpiration
48. What device is used to measure the rate of transpiration?
49. What is the hardest substance in the human body?
50. Name three parts of a tooth
51. What brings about tooth decay?
52. What is an enzyme?
53. List two characteristics of an enzyme
54. What do we call the part of an enzyme where the substrate fits during an enzyme
catalyzed reaction?
55. List three factors that affect enzyme activities
56. If a person is lacking iodine in his diet, he is likely to suffer from.....
57. Which mineral salt is important for the formation of strong bones and teeth?
58. Lack of........ leads to constipation.
59. Outline three adaptations of the leaf to carry out photosynthesis
60. Chlorosis is a deficiency in plants caused by.......
61. What is saprophytic nutrition?
62. Give one example of a saprophytic organism
63. List four types of teeth in the mouth of an animal
64. What are the functions of blood capillaries in the tooth?
65. What is the number of teeth in the mouth of a fully grown human?
66. List two adaptations of the ileum to carry out its function
67. Define deamination
68. Where in the human body does gaseous exchange take place?
69. What gas is given out during the process of respiration?
70. What is the function of gills in fish?
71. Distinguish between aerobic respiration and anaerobic respiration
72. What is a disease?
73. What is a pathogen?
74. What is a biological vector
