www.kvsrobhopal.org.in Kendriya Vidyalaya Sangathan Model Question Paper

[muthukalee]

Kendriya Vidyalaya Sangathan
MODEL QUESTION PAPER I
CLASS-X
CLASS XI

BIOLOGY (THEORY)

SECTION A
Q1. Define – “Coelom”?
Q2. What are “Bulliform Cells”?
Q3. What is the role of alary muscles in cockroach?
Q4. During an experiment a Biologist adds Cytokinin to the culture medium. What is its purpose?
Q5. Give an example of-
(a) Hyperglycerine hormone.
(b) Hormone secreted from atrial wall which decrease blood pressure.

http://kvsrobhopal.org.in/
http://www.kvsrobhopal.org.in/HOTS.html

SECTION- B
Q6. Mention the difference between-
(a) Open and closed Vascular bundle.
(b) Exarch and Endarch Primary Xylem.
Q7. It is said that, when the head of cockroach is cut-off , it will still live for as long as one week. Justify the statement.
Q8. What are nuclear pores? State their function.
Q9. Name the stage of cell cycle at which the following events occur:-
(i) Chromosomes move to equator of spindle.
(ii) Centromere splits and Chromatids separate.
(iii) Pairing between homologous chromosome takes place.
(iv) Crossing over between homologous chromosomes takes place.
Q10. Which plant hormone exists in gaseous form? State its function.
Q11. Justify the statement “Photorespiration is a wasteful process in C-3 plants”.
Q12. What is respiratory quotient? What is its value for fats?
Q13. Which hormonal deficiency is responsible for-
(a) Dibetes mellitus
(b) Goitre
Q14. Explain the role of Na-ion in the generation of Action potential.
Q15. How will hearing get affected if the Eustachian tube gets blocked ?
OR
What is meant by the term “Osmoregulation”?
Q16. What are the characteristics of Euglenoids?
Q17. Compare the characters of Chordates and Nonchordates.
OR
What is heterosopy? Briefly comment on its significance. Give two examples.
Q18. Write the floral formula and then draw the suitable floral diagram for a flower with the following floral characters:-
Actinomorphic , Bisexual , hypogynous , five united sepals with valvate aestivation,
five free petals with twisted aestivation , five free stamens , anthers dithecous and axile
placentation.
Q19. Mention the function of the following:-
(a) Ureters in frog.
(b) Malpighian tubules.
(c) Body wall in earthworm.
Q20. Identify the micronutrient of plant which helps in splitting of water to liberate oxygen during photosynthesis. How does the excess of this micronutrient induce the deficiency of other nutrients in plants?
Q21. What is Apolast and Symplast pathway of water movement in the root? Explain the role of Casparian strip in endodermis.
Q22.Name two cytoplasmic cell organelles that are double membrane bound. State their functions and draw labeled diagram of both.
Q23. What do you mean by co-factors of enzyme? Mention the difference between: Prosthetic group and Co- enzyme.
Q24. What is the significance of Juxta-glomerular apparatus (JGA) in kidney function?
Q25. Why do we call our heart myogenic? What do the P-wave and T-wave represent in the electrograph (ECG)?

SECTION-D
Q26. Describe the events taking place during Interphase. What is the Go(quiescent phase) of cell cycle? OR
(a) Describe the fluid mosaic model of plasma membrane.
(b) Describe the structure of plastids along with a diagram.
Q27. How will you ascertain by looking at the external and the internal characters, whether a plant is C3 or C4? Even though very few cells in a C4-plant carry out biosynthetic Calvin pathway, yet they are highly productive. Justify the above statement, explaining the C4 pathway. OR
Give the schematic representation of glycolysis. What happens when oxygen is not available to the C4 pathway?
Q28. What are the major transport mechanisms of CO2 in the human body? Explain in brief. OR
Draw the diagram of a sarcomere of skeletal muscle showing different regions. Describe the important steps in muscle contraction.

[Guest]

Dear Sir/Madam,
I am working in Central Pollution Control Board since Oct 2008 which is under Ministry of Finance. My age is 37 years. I want to apply for the post of Assistant in KVS through proper channel. My query is that am I eigible or not. if yes should I deposit the examination fees. please reply to my query.

thankx

Bhagwat Singh Shahi
email bsshah@yahoo.com

[Guest]

Kindly tell the date for kvs written exam for assistant post. Also send me some model paper for kvs assistant exam for paper II.