HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the phloem cells
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the xylem cells
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the root hair cells
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palisade mesophyll layer
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Detailed explanation-1: -Xylem transports water, minerals, and nutrients from the soil to all the plant parts. There are two types of “transport” tissues in plants-xylem and phloem. Water and solutes are transported by the xylem from the roots to the leaves, and food is transported from the leaves to the rest of the plant by the phloem.
Detailed explanation-2: -Key Term: Cohesion–Adhesion or Cohesion–Tension Theory of Water Movement. The cohesion–adhesion theory, sometimes also called cohesion–tension theory, describes the two forces in the xylem vessels that help transport water upward against gravity, from the roots to the leaves.
Detailed explanation-3: -The two primary vascular tissues are xylem, which transports water and dissolved minerals from the roots to the leaves, and phloem, which conducts food from the leaves to all parts of the plant.