Biology General Knowledge Questions and Answers for preparing Examinations.
Plant Hormones
1. Chemicals seen in plants which regulate growth and development?
Answer: Phytohormones
2. Hormone promotes root initiation and cell elongation?
Answer: Auxins
3. Apical dominance is due to which plant hormone?
Answer: Auxins
4. Auxins were first isolated from?
Answer: Human urine
5. Synthetic plant hormone used for the uniform flowering in pineapple?
Answer: NAA and 2, 4-D
6. Dormancy breaking hormone?
Answer: Gibberellins
7. Hormone for abscission?
Answer: Abscisic Acid
8. Plant hormone help to induce cell division and cell elongation?
Answer: Cytokinins
9. Plant hormone that controls Fruit ripening?
Answer: Ethylene
10. A gas from plant hormone?
Answer: Ethylene
11. Seed dormancy is due to?
Answer: Abscisic Acid
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