10 Multiple Choice Questions on Hydrotropism
1. What is hydrotropism in plants?
Growth response to light
Growth response to gravity
Growth response to water
Growth response to touch
Correct Answer
Wrong Answer
2. Which plant hormone is primarily involved in hydrotropism?
Auxins
Gibberellins
Ethylene
Cytokinins
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3. In hydrotropism, which part of the plant grows toward moisture?
Stem
Leaves
Flowers
Roots
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4. Which gene is notably active in hydrotropic responses?
FRT1
MIZ1
ZNR2
LTX5
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5. Why is hydrotropism critical for plants in dry environments?
It helps them get more sunlight
It enables roots to find water sources
It helps them grow taller
It directs leaves toward light
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6. Hydrotropism primarily affects which cellular process in roots?
Cell division
Photosynthesis
Cell elongation
Pollination
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7. In which environment is hydrotropism especially beneficial?
Aquatic environments
Dry or arid environments
Dense forests
Tundra regions
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8. What triggers hydrotropic growth in plant roots?
Sunlight
Nutrient concentration
Water gradient
Temperature changes
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9. Which other tropism often works with hydrotropism in roots?
Phototropism
Gravitropism
Thigmotropism
Thermotropism
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10. Which agricultural benefit is linked to hydrotropism?
Better sunlight absorption
Higher fruit yield
Increased drought resistance
Faster leaf growth
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