BI-852
Transpiration
Biology · Secondary 3 · Medium · Transpiration
In an experiment, a leaf is coated on both surfaces with petroleum jelly (Vaseline) and placed in sunlight for several hours.
What is the main reason this leaf loses much less mass than an uncoated leaf?
What is the main reason this leaf loses much less mass than an uncoated leaf?
- Vaseline increases the rate of photosynthesis.
- Vaseline blocks stomata and reduces water loss by transpiration.
- Vaseline allows more water to be absorbed by the roots.
- Vaseline makes the leaf cells store more water in vacuoles.
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