| (i) In flowering plants, tracheid and vessels are the main water transporting elements. |
| (ii) The presence of vessels is a characteristic feature of angiosperms. |
| (iii) Xylem fibres have highly thinned walls and their cell walls are made up of cellulose. |
| (iv) Xylem parenchyma store food materials in the form of starch or fat and other substances like tannins. |
A) Only (i)
B) Both (ii) and (iii)
C) Both (iii) and (iv)
D) (i), (ii) and (iv)
Correct Answer: D
Solution :
[d] Xylem fibres have highly thickened walls and obliterated central lumens whereas xylem parenchyma are thin walled and their cell walls are made up of cellulose.
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