PLANTS
TRANSPORT IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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PARASITES ATTACK THE STEM DUE TO EXPOSURE TO THE ATMOSPHERE
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THE LEAVES CANNOT CARRY OUT PHOTOSYNTHESIS
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SUGAR LEAKS OUT FROM THE RING OF THE BARK
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SUGAR IS NOT TRANSPORTED TO THE ROOTS
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Detailed explanation-1: -Girdling is removal of bark in a ring at a certain height above ground as a girdle. The secondary phloem is removed as it is a part of bark and sugars cannot be transported to the plant parts located below the girdle. The lower plant parts consequently die.
Detailed explanation-2: -When a tree has been damaged by removing a ring of bark, the tree may die depending on how completely it was girdled. Removal of even a vertical strip of bark less than one-fourth the circumference of the tree will harm the tree, but not kill the tree.
Detailed explanation-3: -If a complete ring of bark is removed from the trunk, the tree will die because the roots no longer obtain food from the phloem.
Detailed explanation-4: -When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because. Water from soil cannot rise to aerial parts. Roots are starved of energy.
Detailed explanation-5: -Girdling, also called ring-barking, is the complete removal of the bark (consisting of cork cambium or “phellogen", phloem, cambium and sometimes going into the xylem) from around the entire circumference of either a branch or trunk of a woody plant.