NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Unidirectional flow of water, minerals, some organic nitrogen and hormones occurs through-
A
Xylem
B
Phloem
C
Root
D
Vascular tissue
Explanation: 

Detailed explanation-1: -So, the correct answer is ‘Xylem’.

Detailed explanation-2: -The transport of water in the xylem takes place only from the roots to the leaves. Therefore, the movement of water and nutrients in the xylem is unidirectional.

Detailed explanation-3: -Xylem is unidirectional, whereas, phloem is bidirectional.

Detailed explanation-4: -The correct option is B True Phytohormones are transported passively and unidirectionally.

Detailed explanation-5: -Xylem sap analysis reveals that Nitrogen is primarily transported as amino acids and related compounds, in an organic form. And very little is transported in its inorganic form as nitrates or minerals. Therefore xylem also contains organic solutes and other compounds.

There is 1 question to complete.