Select wrong statements I. Primary and secondary phloem gets crushed during secondary growth II. Dur

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6.Anatomy of Flowering Plants

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Select the wrong statements

$I.$ Primary and secondary phloem gets crushed during secondary growth

$II.$ During secondary growth, primary xylem remains more or less intact

$I$ is correct and $II$ is incorrect

$II$ is correct and $I$ is incorrect

Both are incorrect

Both are correct

Solution

The primary xylem is in the centre of the stem, while primary phloem is pushed outward and crushed into the cortex by the significant activity of vascular cambium. While the secondary phloem differentiates from the cells that divide towards the outside of the stem

Standard 11

Biology

Given below are two statements : One is labelled as Assertion $A$ and the other is labelled as Reason $R$:

Assertion $A$ : Late wood has fewer xylary elements with narrow vessels.

Reason $R$ : Cambium is less active in winters.

In the light of the above statements, choose the correct answer from the options given below :

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(NEET-2023)

The periderm includes

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(AIPMT-1998)

Give differences : Heartwood and Sapwood

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The wood is, in fact a

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$I.$ Protection of internal tissues

$II.$ Protection of leaves from microbes

$III.$ Gaseous exchange

$IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes

Which of the function of epidermis is/are relevant from the above given statements?

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Select the wrong statements $I.$ Primary and secondary phloem gets crushed during secondary growth $II.$ During secondary growth, primary xylem remains more or less intact

Solution

Similar Questions

The periderm includes

Give differences : Heartwood and Sapwood

The wood is, in fact a

$I.$ Protection of internal tissues $II.$ Protection of leaves from microbes $III.$ Gaseous exchange $IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes Which of the function of epidermis is/are relevant from the above given statements?

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Select the wrong statements

$I.$ Primary and secondary phloem gets crushed during secondary growth

$II.$ During secondary growth, primary xylem remains more or less intact

$I.$ Protection of internal tissues

$II.$ Protection of leaves from microbes

$III.$ Gaseous exchange

$IV.$ Reduction in the rate of transpiration through epidermal cells due to trichomes

Which of the function of epidermis is/are relevant from the above given statements?