Lahore Board 9th Class (Biology) Subjective 2016 Past Paper English Medium [Group 2nd]

Lahore Board 9th Class (Biology) Subjective 2016 Past Paper English Medium [Group 2nd]

---

Write short answers to any FIVE (5) questions. 10

(i) What is Biotechnology? Elaborate its usefulness.
(ii) What is role of Bu Ali Sena in Biology?
(iii) Differentiate between theory and law.
(iv) How hypothesis is framed?
(v) What are effects of human being on Biodiversity?
(vi) Why virus are not included in five kingdom system?
(vii) What is basic difference in cell division of plants and animals?
(viii) Plants do not make their gametes by meiosis. Why?

Write short answers to any FIVE (5) questions. 10

(i) Differentiate between Endocytosis and Exocytosis.
(ii) What is meant by hypertonic and hypotonic solution?
(iii) Write note on Centrioles.
(iv) What is meant by denaturing of enzymes?
(v) Write down uses of enzymes.
(vi) What is optimum temperature?
(vii) What is meant by photolysis?
(viii) What is lactic acid fermentation?

Write short answers to any FIVE (5) questions. 10

(i) What is the function of vitamin C in body?
(ii) Write down the name of two diseases caused by minerals deficiency.
(iii) Write components of human food.
(iv) Write the weight and size of liver in an adult human.
(v) Define systole and diastole.
(vi) How much white blood cells are present in the body and what are their functions?
(vii) Write down names of two systems of transport of materials in human.
(viii) Write the Causes of dengue fever.

PART – II
Note: Attempt any TWO questions.
5. (a) Biology is divided into different branches Explain any four.
    (b) Differentiate between prokaryotic and eukaryotic cells.

6. (a) Describe the importance of mitosis.
   (b) Describe the mechanism of respiration.

7. (a) Describe the importance of fertilizers.
  (b) Explain the opening and closing of stomata.