IGCSE Biology: Organization - Question Paper
Time Allowed: 1 hour 30 minutes
Total Marks: 60
Section A: Multiple Choice Questions (10 Marks)
1. Which of the following best describes a tissue? (1 mark)
A. A group of cells with different structures working together
B. A group of cells with similar structure and function
C. A group of organs working together
D. A part of an organ system
2. Which part of a plant cell is responsible for photosynthesis? (1 mark)
A. Nucleus
B. Mitochondria
C. Chloroplast
D. Vacuole
3. What is the main function of red blood cells? (1 mark)
A. Transport oxygen
B. Fight infections
C. Transport nutrients
D. Produce enzymes
4. Which organ system is responsible for transporting nutrients and oxygen around the body?
(1 mark)
A. Nervous system
B. Respiratory system
C. Circulatory system
D. Digestive system
5. What type of tissue contracts to bring about movement in animals? (1 mark)
A. Nervous tissue
B. Epithelial tissue
C. Connective tissue
D. Muscle tissue
6. Which of the following is not a component of the human digestive system? (1 mark)
A. Stomach
B. Heart
C. Liver
D. Intestines
7. What is the function of enzymes in the digestive system? (1 mark)
A. To transport oxygen
B. To speed up the breakdown of food
C. To fight infections
D. To produce red blood cells
8. Which blood vessel carries oxygenated blood away from the heart? (1 mark)
A. Vein
B. Artery
C. Capillary
D. Lymph vessel
9. What is the main function of the xylem in plants? (1 mark)
A. Transport food
B. Transport water
C. Transport oxygen
D. Transport carbon dioxide
10. Which part of the human body is responsible for the production of insulin? (1 mark)
A. Liver
B. Pancreas
C. Kidney
D. Brain
Section B: Short Answer Questions (20 Marks)
11. Describe the difference between an organ and an organ system. (2 marks)
12. Explain the function of the cell membrane in both plant and animal cells. (2 marks)
13. Name the four types of human tissues and provide one function of each. (4 marks)
14. Outline the pathway of blood through the human heart, starting and ending with the vena
cava. (4 marks)
15. What is the role of stomata in plants? How do they help maintain water balance? (4 marks)
16. Define the term enzyme and explain how enzymes function in the digestive system. (4
marks)
Section C: Long Answer Questions (30 Marks)
17. Compare the structure and function of arteries, veins, and capillaries. (6 marks)
18. Explain the process of transpiration in plants. Include the role of the xylem and stomata. (6
marks)
19. Describe the structure of the human respiratory system and explain how gas exchange
occurs in the alveoli. (8 marks)
20. The human digestive system breaks down food into smaller molecules for absorption.
Explain the roles of the following organs in digestion:
a) Stomach
b) Small intestine
c) Liver
d) Pancreas
(10 marks)
