CBSE Class 11 Biology Structural Organisation in Animals Quiz 1

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CBSE › Class 11 › Biology › Structural Organisation in Animals

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1. Quiescent centre is present in the

A apical meristem B shoot meristem C lateral meristem D root meristem

2. Closed vascular bundles lacks

A pith B xylem C cambium D xylem vessels

3. Which of the following is not a feature of spring wood?

A Color of the wood is light. B Density is less. C Cambium is active. D Lesser number of xylary elements.

4. In a monocot leaf

A bulliform cells are absent from the eqidermis B veins from a network C mesophyll is well differentiated into palisade and spongy parenchyma D mesophyll is not differentiated into palisade and spongy parenchyma

5. A. T. S. of a young dicot root can be distinguished from that of a young dicot stem by the presence of

A radial arrangement of xylem and phloem B collateral arrangement of xylem and phloem C interfascicular cambium D intrafascicular cambium

6. Fusifrom initial cells of cambium from

A vascular rays B tracheary elements C ray parenchyma D phloem parenchyma

7. Callose deposition is found in

A tracheids B companion cells C sieve areas D phloem parenchyma

8. Stem develops from

A radicle B cotyledon C mesocarp D plumule

9. Stem grows in girth due to

A outer cortical B epidermis C vascular cambium D phellogen

10. Which of the following is true about heartwood?

A They are dead but gives mechanical support to stem. B They are light in color. C They conduct water and minerals. D 1 and 3

Practice more on Structural Organisation in Animals

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