Question

Describe the two factors lying behind transport of water against gravity by xylem
during day and night time.

Answer 1

Answer:

Plants use water potential to transport water to the leaves so that photosynthesis can take place.

Plants use water potential to transport water to the leaves so that photosynthesis can take place.Water potential is a measure of the potential energy in water as well as the difference between the potential in a given water sample and pure water.

Answer 2

Answer:

Plants transport water and minerals with the help of xylem tissue by transpiration during day time.

By transpiration plants lose the water molecules which creates a suction force to pull water during day time.

In night time water is transported by the pressure of the root cells.

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Explanation: