9th Class Biology Past Paper 2021 Evening
Note: Biology 2nd Time Paper of 9th Class.
(vii) Differentiate between the cell membrane and the plasma membrane.
(viii) What is cytoplasm?
Q.3 Write short answers to any FIVE (5) questions: (10 Marks)
(i) Define taxa. Write the names of any two taxa.
(ii) Write two characteristics of Kingdom Fungi.
(iii) Define binomial nomenclature.
(iv) Define chiasmata.
(v) Write any two significances of mitosis.
(vi) Define bivalent. Why is it called tetrad?
(vii) Sketch the molecular structure of ATP.
(viii) What products are produced during photosynthesis?
Q.4 Write short answers to any FIVE (5) questions: (10 Marks)
(i) What is an active site?
(ii) Define substrate and product.
(iii) Write two characteristics of enzymes.
(iv) What are saturated fatty acids? Give their drawbacks.
(v) What is chyme?
(vi) What is the function of roots in plants?
(vii) What is the mass and size of the heart in a normal adult man?
(viii) What are the symptoms of dengue fever?
PART-II
Note: Attempt any TWO (2) questions.
Q.5
(a) Define biology and write its major divisions. (5 Marks)
(b) What are plastids? Write their types. (4 Marks)
Q.6
(a) Describe in detail the characteristics of Kingdom Monera and Kingdom Protista. (5 Marks)
(b) Describe the differences between photosynthesis and respiration. (4 Marks)
Q.7
(a) What is the oral cavity? Explain its important functions in the process of digestion. (5 Marks)
(b) Compare veins and capillaries. (4 Marks)