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Xylem and Phloem Tissues MCQs for Competitive Exams

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Xylem and Phloem Tissues MCQs for Competitive Exams

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Topic Notes: Xylem and Phloem Tissues

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Quick Overview

Xylem and Phloem Tissues MCQs in Biology are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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41
Which plant tissue is responsible for the translocation of organic nutrients and solutes from the leaves to other parts of the plant?
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42
What is the primary physiological function of phloem tissue in vascular plants?
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43
Which specialized cells are responsible for providing metabolic support and protein synthesis for the sieve tube elements in phloem tissue?
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44
Which chemical substance is primarily responsible for the structural reinforcement of the secondary walls in xylem cells?
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45
How does the addition of salts and other solutes from surrounding cells into the xylem sap affect the water potential of the xylem?
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46
Which specific cells within the phloem tissue are primarily responsible for the translocation of organic solutes?
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47
Which cell types are primarily responsible for the composition of phloem tissue?
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48
In the context of plant anatomy, what is the biological origin of sapwood?
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49
Which scientist is credited with proposing the pressure flow theory of phloem transport?
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50
What is the collective term for xylem and phloem tissues in plants?
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