CBSE Board Class 10 Biology Sample Papers 2011

SAMPLE PAPER 2011
BIOLOGY
CLASS 10

1.What is the composition of bile juice ?

2.Why does the walls of trachea do not collapse ?

3.Why is carbon dioxide transported in the dissolved form in our blood ?

4.What are the functions of plasma ?

5.Define excretion ?

6.How can the urge to urinate be controlled ?

7.Where are the plant waste stored ?

8.Which part is called as thinking part of brain ?

9.Which part of the brain controls vomiting ?

10.Name a plant hormone which helps in wilting of leaves ?

11.Why is it advised to have iodised salt in our diet ?

12.What is feed back mechanism ?

13.How does the pathogen of Kala azar reproduce?

14.What is germination ?

15.Define puberty ?

16.Why does breasts mature in size in females?

17.What is the function of tail in the sperm ?

18.How does child birth takes place ?

19.What is a condom ?

20.What are the functions of sepals and carpel in a flower ?

21.What is genetic drift ?

22.What type of eyes does a planaria have ?

23.How did the ‘Chipko andolan’ ultimately benefit the local population ? Give any two benefits.

24 Why are the environmentalists insisting upon ‘sustainable natural resource management ’ ? Give any three reasons.

25 Plant absorbs the water from the soil . How does this water reach thetree tops. Explain in detail

26 Explain the process of specification.

27. What are the functions of food that we eat?

28. Draw a neat diagram to show germination ?

29. Explain double fertilization in plants ?

30. Describe the role of AK Banerjee in the forest range of Midanpore district ?