Xylem And Pholem Cells

Question 1

Xylem definition

Answer 1

the vascular tissue in plants which conducts water and dissolved nutrients upwards from the root and also helps to form the woody element in the stem.

Question 2

Phloem

Answer 2

the vascular tissue in plants which conducts sugars and other metabolic products downwards from the leaves.

Question 3

Transpiration

Answer 3

Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth

Question 4

Transpiration steam

Answer 4

In plants, the transpiration stream is the uninterrupted stream of water and solutes which is taken up by the roots and transported via the xylem to the leaves where it evaporates into the air/apoplast-interface of the substomatal cavity. It is driven by capillary action and in some plants by root pressure.

Question 5

Translocation

Answer 5

that is a chromosomal segment is moved from one position to another, either within the same chromosome or to another chromosome.