Transport of organic and inorganic material in phloem and xylem is _and ____.

Unidirectional, multidirectional

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Multidirectional, unidirectional

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Bidirectional, unidirectional

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Undirectional, bidirectional

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Solution

The correct option is A Bidirectional, unidirectional
The direction of transport is an important aspect of plants. In case of rooted plants, transport in the xylem of both water and minerals is unidirectional from roots to stems. Organic and inorganic compounds undergo multi-directional transport. Organic compounds, formed during photosynthesis are exported to all parts of the plants along with storage organs.
So, the correct answer is 'Multi-directional'.

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Similar questions

Assertion (A): Much of the nitrogen and small amounts of phosphorus and sulphur are carried in the organic form through xylem.

Reason (R): Xylem transports only inorganic nutrients and phloem transports only organic nutrients.

Identify the correct set of statements related to the movement of substances through vascular tissues.

I. Xylem mainly transports water, minerals salts and also organic solutes.

II. Phloem mainly translocates a variety of organic solutes and also inorganic solutes.

III. Xylem transports substances from roots to aerial parts of the plants.

IV. Phloem transports substances bidirectionally.

The flow of energy in an ecosystem is always :

(a) unidirectional (b) bidirectional (c) cyclic (d) multidirectional

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