10 Multiple Choice Questions on Haptotropism - The Touch Sensitivity in Plants
1. What is haptotropism in plants?
Growth in response to light
Growth in response to gravity
Growth in response to touch
Growth in response to sound
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2. Which plant hormone is primarily involved in haptotropism?
Gibberellin
Auxin
Cytokinin
Ethylene
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3. Which part of climbing plants is most responsive to haptotropism?
Leaves
Roots
Tendrils
Flowers
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4. How does haptotropism help climbing plants?
Helps in nutrient absorption
Helps them reach sunlight
Increases seed production
Improves root growth
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5. Which of these is NOT a common example of a plant showing haptotropism?
Pea plants
Grape vines
Corn
Beans
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6. What effect does auxin have in haptotropism?
Stops growth
Inhibits leaf development
Promotes growth on the opposite side of contact
Causes roots to grow deeper
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7. Haptotropism is also known as:
Phototropism
Geotropism
Thigmotropism
Hydrotropism
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8. Which plant is known for folding its leaves when touched, showing a rapid response?
Venus flytrap
Mimosa pudica
Bean plant
Bamboo
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9. Haptotropism mainly assists climbing plants in:
Soil absorption
Protecting themselves from animals
Climbing for sunlight
Reproduction
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10. What role do tendrils play in haptotropism?
Support the plant's root system
Aid in photosynthesis
Help sense and attach to surfaces
Attract pollinators
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