HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Roots, Stem
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Dermal, Vascular
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Xylem, Phloem
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Phloem, Xylem
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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: -Water and mineral nutrients–the so-called sap flow–travel from the roots to the top of the tree within a layer of wood found under the bark. This sapwood consists of conductive tissue called xylem (made up of small pipe-like cells).
Detailed explanation-3: -Capillary action is the phenomenon that causes water to rise from plant roots to leaves. Moisture is transported through plants via transpiration, from roots to tiny pores on the underside of leaves, where it transforms into vapour and is discharged into the atmosphere.
Detailed explanation-4: -The xylem transports water and nutrients from the roots to leaves. The phloem transports food from the leaves where the food is prepared to the rest of the plant.