STD.9 Biology online exam chapter 1 Protectors of Biosphere
Answer all questions. Questions 1 to 16 carry 1 score for each question. Questions 17 to 23 carry 2 score for each questions (2 correct options should be done to avail score) and questions 24 and 25 carry 5 score for each question. Total score:40. If you are using mobile phone, please keep it in landscape mode) Thank you. Prepared by: SEBIN THOMAS C, HST, GBHS, WADAKANCHERY, THRISSUR. Questions prepared by SUNANDAKUMARI & MANIKANDAN, HST, GVHSS, CHERPULASSERY.
Untitled Title
Name of the student: *
Name of School *
1. From the given pigments,identify the one that is not an accessory pigment *
1 point
2. The process in plants that regulate the level of oxygen and carbondioxide in the atmosphere? *
1 point
3. Energy currency of the cell is? *
1 point
4. Transportation of glucose into various parts of the plant occur in the form of? *
1 point
5. Pigments that absorb sunlight are found in *
1 point
6. Upper part of the leaf greener than lower part because of the presence of more amount of *
1 point
7. Identify the one that is not a green house gas? *
1 point
8. Pigment that can directly take part in the process of photosynthesis is *
1 point
9. Recognise X and Y to complete the chemical reaction in photosynthesis? *
1 point
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10. Transportation of glucose into various parts of the plant body is a function of *
1 point
11. Sulphur bacteria produce energy by breaking down chemical compounds called .................? *
1 point
12. Factors required for photosynthesis include water, carbondioxide, mineral salts, sunlight and ................... *
1 point
13. Chemical reactions in the Calvin cycle was discovered by ....................? *
1 point
14. Atmospheric oxygen is mainly obtained through .................? *
1 point
15. Chief producers of oceanic ecosystem? *
1 point
16. Pathway of Carbondioxide and water into leaves shown here. C& D are? *
1 point
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17. Green plants are the protectors of biosphere. Select the statements justifying this. *
2 points
Required
18. Identify the incorrect statements *
2 points
Required
19. Select Phytoplanktons from the given items? *
2 points
Required
20. Identify X and Y *
2 points
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Required
21. Replace the underlined words, if there is any mistake or make it as correct answer? *
2 points
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Required
22. Identify the correct statements *
2 points
Required
23. 23.Identify the parts of chloroplast *
2 points
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Required
24. .If I labelled the different stored forms of glucose as ,Starch (1),Protein(2),Fat(3),Sucrose(4),Fructose(5). Identify the stored forms in different food items/plant parts. *
5 points
1
2
3
4
5
Sugar cane
legumes
Fruits
Tubers
Oil seeds
25. Categorise the given items into the headings Light phase and Dark phase *
5 points
Light phase
Dark phase
Light required
Occur in stroma
Glucose synthesised
Water splits
ATP synthesised
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