The question given below has two sentences. Statement-I is
assertion (A) & statement-II is reason (R). This question has four
choices. Select the correct choice.
Statement-I
Assertion (A): Water gets transported to great heights in tall trees through xylem.
Statement-II
Reason (R): Evaporation through transpiration creates suction pull.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true R is not correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Answers
Answer:
a) Both A and R are true and R is the correct explanation of A.
Answer:
statement 1 .
(A) Water is often the most limiting factor to plant growth. Therefore, plants have developed an effective system to absorb, translocate, store and utilize water. To understand water transport in plants, one first needs to understand the plants' plumbing. Plants contain a vast network of conduits, which consists of xylem and phloem tissues. The xylem is also composed of elongated cells. Once the cells are formed, they die. But the cell walls still remain intact, and serve as an excellent pipeline to transport water from the roots to the leaves. A single tree will have many xylem tissues, or elements, extending up through the tree. Each typical xylem vessel may only be several microns in diameter.
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Explanation:
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