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Oval, spherical or polygonal cells, thic...

Oval, spherical or polygonal cells, thickening at corners due to desposition of cellulose, hemicellulose and pectin, often containing chloroplasts and having or not having intercellualr spaces are called

A

parenchyma

B

chlorenchyma

C

sclerenchyma

D

collenchyma

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The correct Answer is:
D
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Read the following features given below: I. Cells are thick at corner due to the deposition of cellulose, hemicelluloses and pectin. II. Cells may contain chloroplast and get assimilated. III. Intercellular spaces are absent. IV. Provide mechanical support to growing parts of the plant such as young stem and petiole of the leaf. These features describe which of the following?

Iedntify the tissue in which cells are much thickened at the corners due to a deposition of cellulose, hemicellulose and pectin :-

Read the following statements carefully– (a) Present below epidermis in docot stem. (b) Cells are much thickened at the corners due to deposition of cellulose, hemicellulose and pectin. (c) Provide mechanical support to the growing parts. Above all are the features of–

* Cells are generally isodiametric * Cells may be spherical, oval, rounded, polygonal or elongated inn shape. ltBrgt * Their walls are thin and made up of cellulose. * The cells may either be closely packed or have intercellular spaces. Above characters of cells related to which type of simple permanent tissue?

A tissue having thickenings of pectin and hemicellulose in the cell wall of its cell

Read the following sttements carefully: (a)It is found either as a homogenous layer or in patches (b)Cells may be oval, sperical or polygonal and aoften contain chloroplasts (c)Intercellular spaces are absent (d)They provide mechanical support to the growing parts of the plant such as young stem and petiole of a leaf These character are found in :

Name the tissues which show the following features : 1. Cells are living , cells show thickening, provides mechanical support to plants 2. Cell are dead, cells show thickening, provides mechanical support to plants, made up of one type of cells 3. Cell are living , cells contain green coloured chloroplast, possess intercellular spaces.

Name the plant tissue which show the following features ? (a) made up of living cells showing thickening, provide mechanical support to the plant. (b) made up of dead cells showing thickening : provide mechanical support to the plant, are made of one type of cells. (c) made up of living cells containing green coloured chloroplasts, possesses intercellular space.

ARIHANT NEET-ANATOMY OF FLOWERING PLANTS -Chapter exercises ( Taking it together Assorted Questions of the Chapter for Advanced Level Practice)
  1. Collenchyma differs from sclerenchyma in

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  2. Identify from the following plant tissues, in which lignin does not o...

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  3. Oval, spherical or polygonal cells, thickening at corners due to despo...

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  4. Cells of this tissue are living and show angular wall thickning. They...

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  5. Choose the incorrect statement

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  6. Star-shaped (stellate) sclereids are present in the leaves of

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  7. Root apical meristerm (root apex) appears cup-shaped (roughly hemisphe...

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  8. Parenchyma cell as found in

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  9. The acitvity of sieve tubes is remotely controlled by the nucleus of

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  10. In sieve elements, the possible function of p-proteins is

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  11. Which is correct about transport or conduction of substances

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  12. A vesselless piceof stem possessing prominent sieve tubes would belong...

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  13. A common structural feature of vessel elements and sieve tube elements...

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  14. In which of the following, the cuticle layer covering the outer surfac...

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  15. Thick-Walled cells of pericycle as found in Linum (flax) and Connabis ...

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  16. What is the fate of primary xylem in a dicot root showing extensive se...

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  17. In monocot roots which types of vascular bundles are found

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  18. Velamen is primarily an absorptive tissue, but it may

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  19. velamen found in epiphyic roots is meant for

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  20. Vascular cylinder in dicot stems occurs in the form of distinctly sepa...

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