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Which of the following statements is/are...

Which of the following statements is/are true?
Uneven thickening of cell wall is characterstic of sclerenchyma
Periblem forms the cortex of the stem and the root.
Tracheids are the chief water transporting elements in gymnosperms.
Companion cell is devoid of nucleus a maturity.
The commercial cork is obtained from Quercus suber.

A

a and d only

B

b and e only

C

c and d only

D

a,b and c only

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The correct Answer is:
b, c and e only.
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These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:Minerals are mainly absorbed by roots which are in direct contact with atmosphere. reason:The absorbed mineral elements are transported from leaves to stem through xylem.

JBD PUBLICATION-ANATOMY OF FLOWERING PLANTS-EXAMPLE
  1. Which of the following statements is/are true? Uneven thickening of ce...

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  2. Fill in the blanks: Vascular bundles are arranged in a ……………..in a dic...

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  3. Fill in the blanks: Vascular bundles are…………….in a monocot stem.

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  4. Fill in the blanks: Roots hairs are………………whereas stem hairs are………………....

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  5. Fill in the blanks: In monocot stems vessles are…………….in shape.

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  6. Fill in the blanks: ………………cavity is present in vascular bundle of mono...

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  7. Fill in the blanks

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  8. Fill in the blanks: Xylem is exarch in root and…………….. In stem.

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  9. Fill in the blanks: Cells of ………….are suberised.

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  10. Fill in the blanks: Lenticels are present in…………. .

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  11. Fill in the blanks: Guard cells are……………….shaped in monocot leaf.

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  12. Which tissue is living mechanical tissue?

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  13. What is bicollateral vascular bundle?

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  14. What is closed vascular bundle?

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  15. Where do you find bicollateral vascular bundle?

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  16. Name a monocot plant with secondary growth in stem.

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  17. What is conjuctive tissue?

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  18. Define intercalary meristem.

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  19. Name the most durable wood.

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  20. Name two plants with anomalous secondary growth.

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  21. Where do you find radial vascular bundles?

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