11th Class Biology Quiz Ranking Competition

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Class 11th biology quiz contest of 2025

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Time: 30 Minutes for 20 Question.

Class 11th Biology Quiz Contest [May 2025]

The number of attempts remaining is 1

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1. The rate of transpiration will ----- if the atmospheric pressure is low

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2. The movement of materials from the leaves to other tissues of the plant is called -----

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3. ICBN stands for -----.

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4. Who wrote the book “Genera Plantarum”?

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5. The steroid hormones easily pass through the plasma membrane through simple diffusion because they are -----

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6. The protists have which of the following?

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7. Living cells placed in an isotonic solution tend to retain their shape and size. This is based on the principle of

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8. Girdling around the trunk of a tree can cause it to ----- if it cannot regrow to bridge the wound

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9. An infant feeding entirely on the mother's milk passes stools that are coloured yellow. What is the reason for this?

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10. Transport of food materials in higher plants occurs through

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11. The main function of guard cells is to help with -----

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12. Blue-green algae belong to which group?

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13. Genes of Tobacco Mosaic Virus are -----.

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14. Nearly 90% of the flowering plants have -----

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15. Transpiration is regulated by the movements of -----

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16. T.O. Diener discovered -----.

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17. The exudation of xylem sap drops on the edges of leaves is called

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18. A dental condition that is characterized by hyper mineralization of teeth enamel due to excessive intake of --------. The teeth often appear mottled.

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19. Fill in the blank ----- is a characteristic feature of epithelial cells of the intestine

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20. The small intestine has three parts. The first part is called

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Pankaj Karn

I’m a dedicated biology teacher specializing in online education and academic writing. Currently, I contribute to QuizRanker.in, where I create engaging and informative biology content. With an MSc degree in hand, I’m passionate about making complex biological concepts accessible and exciting for students everywhere.