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SECTION “B” (Short Answer Question) Marks:18
2. Answer any NINE part questions. All part question carries equal marks..
i) Write a note on Lytic cycle OR Lysogenic cycle.
ii) Define Halophytes. Write two examples of halophyte plants.
iii) Describe the role of Sulphur OR Phosphorous in Plants.
iv) Why chloroplast considered as an energy converting organelle?
v) Write a note on Nucleus OR Mitochondria.
vi) Describe the classification of bacteria on the basic of shapes.
vii) Why carnivorous plants use insects as food?
viii) Differentiate between any One of the following: *Prokaryote and Eukaryote *Rough Endoplasmic Reticulum and smooth Endoplasmic Reticulum.
ix) Write a note on Viroids OR Prions.
x) Why ATP is known as common energy currency of living system ?
xi) What is the molecular formula of chlorophyll ‘a’ and ‘b’?
xii) Define any One of the following: *Annual ring *Turger pressure *Parenchyma
xiii) How C4 Plants are different from C3 plants?
xiv) Write the stages of HIV life cycle.
Section C (Detailed -Answer Question) (18)
NOTE: Attempt any TWO question from this section.
All questions carry equal marks.
3. Explain light independent reaction of photosynthesis.
---OR—Explain oxidation of Pyruvic acid and kreb’s cycle.
4. Describe the sources of nutrition in bacteria.
5. Explain the chemical composition, structure and functions of plasma membrane.
6. Describe source-sink movement. How pressure flow hypothesis explain the mechanism of translocation of food?
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