MCQ
Xylem tissue is composed of
- AFour same kinds of elements
- BThree same kinds of elements
- ✓Four different kinds of elements
- DThree different kinds of elements
($i$) Tracheids Elongated or tube like cells with thick lignified walls and tapering ends. These are main water transporting elements
($ii$) Vessels A long cylindrical tube with lignified walls and large central cavity. It is a characteristic feature of angiosperms
($iii$) Xylem fibres have thickened walls and obliterated central lumen either septate or aseptate
($iv$) Xylem parenchyma is a thin cellulose and used to store food in the form of starch or fat
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Column $-I$ |
Column $-II$ |
Column $-III$ |
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$X.$ $RBC$ |
$P.$ Nucleated |
$A.$ $5-5.5$ Million |
|
$Y.$ Monocytes |
$Q.$ granulocyte |
$B.$ $2-3\%$ |
|
$Z.$ Eosinophil |
$R.$ Lack of nucleus |
$C.$ $6-8\%$ |
|
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$S.$ Lack of $Hb$ |
$D.$ $20-25\%$ |