Objective;
Describe transpiration and
translocation
State the factors affecting the rate of
transpiration.
Explain the comparison of xylem and
phloem.
What is Transpiration?
Transpiration is the loss of water vapor from the plant
leaves through openings in the leaves called stomata
Process involved
in transpiration
and translocation
Transpiration
Factors Affecting Transpiration
Light
Humidity
Temperature
Wind speed or velocity.
Translocation
Translocation
Transports water in the xylem
Transports food and minerals in the
phloem
Xylem vs Phloem
Xylem primarily transports water and
mineral nutrients from the roots to
the rest of the plant, and it also plays
a role in physical support.
Phloem transports organic
substances, such as sugars produced
during photosynthesis, from the
leaves to other parts of the plant.
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