9th Class Biology Past Paper 2019 Evening
Note: Biology 2nd Time Paper of 9th Class.
Group-II (Subjective) 48 Marks
Part– I
Q.2 Write short answers to any FIVE (5) questions: (10)
(i) Define parasitology.
(ii) Differentiate between community and population.
(iii) Write down the names of the main steps of the biological method.
(iv) Write two observations of A.F.A King.
(v) Describe two properties of Kingdom Fungi.
(vi) Write the names of two endangered species in Pakistan.
(vii) Describe two functions of the cell membrane.
(viii) Write two functions of lysosomes.
Q.3 Write short answers to any FIVE (5) questions: (10 Marks)
(i) Define karyokinesis and cytokinesis.
(ii) Differentiate between apoptosis and necrosis.
(iii) What is meant by alternation of generations?
(iv) What is meant by the active site in an enzyme?
(v) Differentiate between a prosthetic group and a co-enzyme.
(vi) Differentiate between aerobic and anaerobic respiration.
(vii) Write down the three subunits of ATP.
(viii) Differentiate between photosynthesis and respiration.
Q.4 Write short answers to any FIVE (5) questions: (10 Marks)
(i) What is the role of magnesium in plants?
(ii) Describe the causes of ulcers.
(iii) What is chyme?
(iv) Differentiate between saturated and unsaturated fatty acids.
(v) How does wind (air in motion) affect the rate of transpiration?
(vi) What is blood? Write the names of its parts.
(vii) Differentiate between pulmonary and systemic circulation.
(viii) Write the name of the organism that transmits dengue fever.
PART-II
Note: Attempt any TWO (2) questions.
Q.5
(a) Describe careers in biology related to medicine/surgery and horticulture. (5 Marks)
(b) Define compound tissues and explain the compound tissues found in vascular plants. (5 Marks)
Q.6
(a) Explain the mechanism of enzyme action. (5 Marks)
(b) Explain the mechanism of respiration. (5 Marks)
Q.7
(a) Write the importance of fertilizers in detail. (5 Marks)
(b) How does the uptake of water and ions take place in plants? (5 Marks)