General Science - Biology MCQs

11. Which of the following are the most primitive vascular plants?

[A] Mosses
[B] Cycads
[C] Kelps
[D] Ferns

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12. Which of the following is a true moss?

[A] Club moss
[B] Reindeer moss
[C] Irish moss
[D] Bogg moss (Sphagnum)

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13. Which of the following is not a characteristic of gymnosperms?

[A] Parallel venation
[B] Perennial plants
[C] Distinct branches
[D] Xylem with vessels

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14. Carbon Dioxide from the air is trapped by which of the following parts of the plant?

[A] Petals
[B] Root hairs
[C] Stomata
[D] Mitochondria

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15. What is the stage in which a plant slows down its cellular activity and sheds its leaves?

[A] dormancy
[B] abscission
[C] tropisms
[D] None of these

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16. The process of formation of seeds without fertilization in flowering plants is known as __.

[A] Budding
[B] Apomixis
[C] Sporulation
[D] Somatic hybridization

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17. Which of the following statements is true about the root modification?

[A] The temporary change in the root structure
[B] The permanent changes in the root structure
[C] The permanent changes in the internal root structure
[D] The temporary changes in the external root structure

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18. The placenta and pericarp are both edible portions in__.

[A] Banana
[B] Apple
[C] Potato
[D] Tomato

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19. Which plant disease is known as ring disease?

[A] Citrus Canker
[B] Black arm of cotton
[C] Wilt of Potato
[D] None of the above

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20. Downy mildew disease is caused by which of the following?

[A] Fungus
[B] Bacteria
[C] Virus
[D] None of these

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