Xylem t ransports only inorganic nutrients while phloem transports only organic materials.

Statement 1: Xylem transport is unidirectional. Statement 2: Phloem transport is bi-directional.

The process of mineralization by mineralization helps in the release of (a) inorganic nutrients from humus (b) both organic and inorganic nutrients from detritus (c) organic nutrients from humus (d) inorganic nutrients from detritus and formation of humus

In rooted plants, transport of organic and mineral nutrients is

uptake and transport OF mineral nutrients ,uptake OF mineral ions ,translocation OF mineral ions.phloem transport: flow from source ton sink ; pressure flow / mass flow hypothesis

Explain why xylem transport is unidirectional and phloem transport bi-directional.

Transport of water and minerals in Xylem , is ul("A") Transport of organic and mineral nutrients is ul("B")

How many of the following statements are not correct? [I] In a flowering plant the substances that would need to be transported are water, mineral nutrients, organic nutrients and plant growth regulators. [II] Over small distances, substances move by diffusion and by cytoplasmic streaming supplemented only by passive transport. [III] Organic and mineral nutrients undergo multidirectional transport through the xylem. [IV] From the storage organs, organic compounds are later re-exported. [V] Phytohormones and other chemical signals are transported to maintain and regulate the plant functions.

[A]: Xylem translocates water and dissolved mineral salts from the roots to the rest of the plant. [R]: Phoem translocates dissolved organic and inorganic solutes