CLASS: X-SCIENCE
CHAPTER: LIFE PROCESSES
SAMPLE
PAPERS
MAX MARKS: 30
MAX
TIME:60 mins
1. List
down the raw materials for photosynthesis? (1 Mark)
2. Specify
what is the role of bile juice in the process of digestion? (1 Mark)
3. Name
the respiratory organ in fish and earthworm. (1 Mark)
4. Name
the types of blood vessels used for the transportation of blood. (1 Mark)
5. What
is dialysis? (1 Mark)
6. How
is respiration in plants and respiration in animals different? (3 Marks)
7. Draw
the labeled diagram of the human digestive system. (3 Marks)
8. How
are alveoli designed and why? (3 Marks)
9. Define
excretion. What are the two organs in human beings that act as accessory
excretory organs? (3 Marks)
10. State
the role of the following (i) Chloroplasts (ii) Diaphragm (iii) Larynx (3
Marks)
11. Give
reasons for the following:
(i)
The glottis is guarded by epiglottis.
(ii)
It is said to not speak while eating.
(iii)
Walls of trachea are supported by cartilage rings. (3 Marks)
12. Leaves
of a potted plant were coated with wax to block the stomata.
Will
this plant remain alive and healthy for long? State three reasons for your
answer. (3 Marks)
13. Describe
the process and importance of double circulation in humans. (3 Marks)
14. (i)
Name the blood vessel that brings oxygenated blood to the human heart. (5
Marks)
(ii)
Which chamber of human heart receives oxygenated blood?
(iii)
Explain how oxygenated blood from this chamber is sent to all parts of the
body.
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