Xylem vessels and phloem companion cells are generally absent in

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6.Anatomy of Flowering Plants

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Xylem vessels and phloem companion cells are generally absent in

Ferns and angiosperms

Ferns and gymnosperms

Bryophytes and pteridophytes

Pteridophytes and thallophytes

Solution

(b) Vessels are absent in pteridophytes and gymnosperms (except Ephedra, Gnetum, Selaginella, Pteridium). Companion cells are not found in pteridophytes and gymnosperms.

Standard 11

Biology

Pith is a central part of the ground tissues generally made up of

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What is incorrect for vessel ?

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What is correct for schlerenchyma tissue

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Specialised parenchyma cells which store tannins, oils and crystals of calcium oxalate are called

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When protoxylem develops towards the periphery, it is called

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Xylem vessels and phloem companion cells are generally absent in

Solution

Similar Questions

Pith is a central part of the ground tissues generally made up of

What is incorrect for vessel ?

What is correct for schlerenchyma tissue

Specialised parenchyma cells which store tannins, oils and crystals of calcium oxalate are called

When protoxylem develops towards the periphery, it is called

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