Unidirectional flow of water minerals, some organic nitrogen and hormones occurs through

Options

A. xylem
B. phloem
C. root
D. vascular tissue.

Answer

A

Explanation

There are two types of vascular tissues in plants, xylem and phloem. Xylem translocation is mainly from roots to aerial parts. It passes water with mineral salts, some organic nitrogen and hormones Phloem translocation organic substances and some inorganic solutes first from leaves ot all other parts of the plant and storage organs. Storage organs re-export organic nutrients to those parts which require the same such as newly formed leaves and fruits.