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WorksheetsPlant Tropisms
Total questions: 15
Worksheet time: 45mins
What is the plant's response to touch from another object known as?
Thigmotropism
Phototropism
Hydrotropism
Gravitropism
Phototropism is a plant response to...
water
gravity
light
nutrients
What is the difference between positive and negative tropism?
Positive tropism is growth towards a stimulus, while negative tropism is growth away from a stimulus.
Positive tropism is growth away from a stimulus, while negative tropism is growth towards a stimulus.
Positive tropism occurs only in animals, while negative tropism occurs only in plants.
Both positive and negative tropism refer to growth towards a stimulus.
In which direction does gravity make the roots grow?
up
sideways
down
backward
What is gravitropism?
The growth response of a plant to gravity.
The process by which plants absorb water from the soil.
The ability of plants to produce flowers in response to sunlight.
The mechanism by which plants store energy during photosynthesis.
How does phototropism benefit plants?
It helps plants maximize light absorption for photosynthesis.
It allows plants to grow faster in the dark.
It prevents plants from wilting in dry conditions.
It enables plants to reproduce more effectively.
What environmental factors can affect plant tropisms?
Temperature, humidity, and soil type
Light, gravity, moisture, and touch
Wind speed, altitude, and pH level
Nutrient availability, carbon dioxide, and salinity
What is hydrotropism?
The growth response of plants to moisture gradients.
The movement of plants towards sunlight.
The process of plants absorbing nutrients from the soil.
The reaction of plants to temperature changes.
How do plants sense gravity?
Through specialized cells called statocytes that contain statoliths.
By using their leaves to detect changes in light.
Through their roots sensing moisture levels in the soil.
By responding to temperature changes in their environment.
What is phototropism?
The movement of plants towards light.
The process of photosynthesis in plants.
The growth of plants in the absence of light.
The ability of plants to survive in extreme conditions.
What is the role of light in plant growth?
Light is essential for photosynthesis and influences plant growth direction through phototropism.
Light is only necessary for flowering and fruiting stages of plants.
Light has no significant impact on plant growth.
Light is primarily used for seed germination.
What is the significance of thigmotropism in climbing plants?
Thigmotropism allows climbing plants to wrap around supports for better access to light.
Thigmotropism helps climbing plants to grow faster in the absence of sunlight.
Thigmotropism enables climbing plants to absorb more water from the soil.
Thigmotropism prevents climbing plants from growing too tall.
Which of the following is the correct equation for PHOTOSYNTHESIS?
CO₂ + light + H₂O → O₂ + Sugar.
H₂O + O₂ + light → CO₂ + Sugar.
CO₂ + H₂O → O₂ + light + Sugar.
O₂ + Sugar + light → CO₂ + H₂O.
What is the effect of auxins on root growth?
Auxins inhibit root growth by causing cell shrinkage.
Auxins promote root growth by stimulating cell elongation and division.
Auxins have no effect on root growth.
Auxins only affect leaf growth, not roots.
What is the role of auxins in phototropism?
Auxins inhibit plant growth towards light by shortening cells on the shaded side.
Auxins are hormones that promote plant growth towards light by elongating cells on the shaded side.
Auxins have no effect on plant growth in response to light.
Auxins cause plants to grow away from light sources.
