9th Class Biology Past Paper 2022 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) Differentiate between vegetative and reproductive parts of the mustard plant.
(ii) Name the two types of tissues in the stomach.
(iii) Distinguish between colonial and multicellular level organization.
(iv) Why are experiments performed?
(v) Define a biological problem.
(vi) What is a productive theory?
(vii) What is the difference between phagocytosis and pinocytosis?
(viii) Define plasmolysis.
Q.3 Write short answers to any FIVE (5) questions: (10 Marks)
(i) Write the scientific names of onion and house crow.
(ii) Define endangered species and give an example.
(iii) Define the cell cycle.
(iv) Why does meiosis not occur in prokaryotes?
(v) How does cytokinesis occur in animal cells?
(vi) Draw a labeled diagram of crossing over.
(vii) Define bioenergetics.
(viii) How does lactic acid fermentation take place in skeletal muscles?
Q.4 Write short answers to any FIVE (5) questions: (10 Marks)
(i) What are the benefits of biocatalysts? Name four enzymes.
(ii) Write two characteristics of enzymes.
(iii) What are the health risks of consuming too many saturated fatty acids in our diet?
(iv) What is diarrhea? What are its symptoms?
(v) What is leukemia? Write its causes.
(vi) What are root hairs? Write their function.
(vii) What are the symptoms of anemia?
(viii) What are the symptoms of dengue fever?
PART-II
Note: Attempt any TWO (2) questions.
Q.5
(a) Describe organelle and cell level organization. (4 Marks)
(b) What are compound tissues? Explain their types. (5 Marks)
Q.6
(a) Explain taxonomic hierarchy. (4 Marks)
(b) Explain the role of chlorophyll and light in photosynthesis. (5 Marks)
Q.7
(a) Define dietary fibers. Explain their types and benefits. (4 Marks)
(b) Describe the pressure flow mechanism in detail. (5 Marks)