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Permanent Tissues

In companion ...

Question

In companion cells, the materials are transported with the help of cytoplasmic bridges called __________.

A

Gap junctions

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B

Ridges

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C

Plasmodesmata

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D

Sieve element

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Solution

The correct option is C Plasmodesmata
The companion cells are connected to each other by a bridge-like structure called plasmodesmata that facilitates the conduction of food and organic solutes from one cell to another.

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Similar questions

In plant cells, the cytoplasm of the adjacent cells are connected through bridges called _______.

Cytoplasmic division of a cell is called:

Q. Consider the following statements and choose the correct option.
(i) The thread like cytoplasmic strands, running from one companion cell to a sieve cell is called as plasmodesmata.
(ii) Fibres are absent in both xylem and phloem in a dicotyledonous leaf.
(iii) The first form xylem elements are described as metaxylem.
(iv) Radial vascular bundles are mainly found in the leaves.

Q. How does elastic behaviour of materials help in designing a bridge?

Q. Read the following statements:

(i) The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
(ii) Phloem parenchyma is made of elongated non-tapering cylindrical cells that have a scanty cytoplasm.
(iii) Phloem fibers are made of parenchymatous cells.
(iv) Companion cells help in maintaining the pressure gradient in the sieve tube.
(v) The phloem parenchyma stores food material and other substances like resins, latex, and mucilage.

How many of the given statements are correct?

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