| 21st January 2013 09:47 AM | |
| Saksham | Re: CBSE Board Papers for Class 12th I do have CBSE Board Papers for Class 12th for the following subjects: Accountancy Business Studies Biology Chemistry Computer science Economics English Geography Hindi History Information practices Maths Multimedia and Web Technology Physics Physical education Psychology Political science Sociology If you need any particular course paper then please let me know. Here I am uplaoidng the question paper of the biology subjects. I have taken following question from the attachment: Q. 1. What prevents collapsing of our trachea during breathing? (1) Q. 2. What advantage does the sea anemone get in the sea anemone-hermit crab facultative mutualism? Give an alternative term for this kind of mutualism. (1) Q. 3. Name the nitrogenous waste excreted in the larval and adult stages of frog respectively.(1) Q. 4. In a wheat field, some broad-leaved weeds were found by a farmer. Which phytohormone can be used to eradicate them? (1) Q. 5. Correct the statement given below with respect to brazzein: “Brazzein is a high calorie carbohydrate.” SECTION - B Q. 6. What is reverse osmosis? Give its one application. (2) Q. 7. Which two heart sounds are heard through the stethoscope when placed on the chest? When are these sounds produced respectively? (2) Q. 8. How is polyspermy prevented in humans? (2) Q. 9. Write the full form of ELISA? Give example of the clinical application of ELISA test. (2) Q. 10. What is fermentation? Name any two organic compounds produced in this process. (2) Or Complete question paper is in the attachment click on it…. |
| 19th January 2013 04:52 PM | |
| priyam pet | CBSE Board Papers for Class 12th Can you give me the CBSE Board Papers for Class 12th?? |
