CBSE Important Questions(Short questions) for HOW DO ORGANISMS REPRODUCE

Q1. List two functions performed by the tests in human beings?
Q2. Name two unisexual flowers?
Q3. What results in the re- establishment of the number of chromosome and the DNA content in the new generation?
Q4.  List two functions of ovary of human female reproductive system?
Q5. Where is DNA found in the cell?
Q6. If a woman is using a copper – T, will it help in protecting her from sexually transmitted diseases?
Q7. Name two simple organisms having the ability of regeneration?
Q8. Name the causative agent of the disease “Kala – azar” and its mode of asexual reproduction?
Q9. Name the floral parts of a plant that develop into (i) Fruit   (ii) Seeds?
Q10. Define the term double – fertilization?
Q11. Name any two sexually transmitted diseases what advice is given to prevent them?
Q12. What is menopause?
Q13. Name one sexually transmitted disease each caused due to bacterial infection and viral infection. How can these be prevented?
Q14. Why testes are located outside the abdominal cavity in a sac called scrotum?
Q15. Name the parts where the germ – cells of a flower are located?
Q16. Mention the function of stamen?

Q17. Give one example for each of the following –
(i) Plants in which vegetative propagation occurs by grafting.
(ii) Plants in which vegetative propagation occurs by leaves?
Q18. What is the role of seminal vesicle and the prostate gland?
Q19. Write two differences between binary fission and multiple fission in a tabular form?
Q20. Draw a labeled diagram to show the different stages of binary fission in Amoeba?
Q21. Explain giving one example of each the unisexual and the bisexual flowers?
Q22. How do Plasmodium and Leishmania reproduce? Write one difference in their mode of reproduction?
Q23. Can you consider cell division as a type of reproduction in unicellular organism? Explain using one example?
Q24. Give two suitable differences between radicle and plumula?
Q25. What are the changes seen n girls at the time of puberty?

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Practice Question

Question 1 Which among the following is not a base?
B) $NH_4OH$
C) $C_2H_5OH$
Question 2 What is the minimum resistance which can be made using five resistors each of 1/2 Ohm?
A) 1/10 Ohm
B) 1/25 ohm
C) 10 ohm
D) 2 ohm
Question 3 Which of the following statement is incorrect? ?
A) For every hormone there is a gene
B) For production of every enzyme there is a gene
C) For every molecule of fat there is a gene
D) For every protein there is a gene

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