(i) | The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls. |
(ii) | Pholem parenchyma is made of elongated non-tapering cylindrical cells which have scanty cytoplasm. |
(iii) | Pholem fibres are made of parenchymatous cells. |
(iv) | Companion cells help in maintaining the pressure gradient in the sieve tube. |
(v) | The phloem parenchyma stores food material and other substances like resins, latex, and mucilage |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the number of correct statements amongst the following regarding the phloem tissue of plants?
I: | Gymnosperms lack albuminous cells and sieve cells. |
II: | The companion cells are specialized parenchymatous cells. |
III: | Phloem parenchyma is absent in most of the monocotyledons. |
IV: | Phloem fibers are generally absent in the primary phloem. |
1. 0
2. 2
3. 3
4. 4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology