Tag: Diffusion and osmosis

Plants are either dicotyledonous or monocotyledonous.  Seeds of dicotyledons have two cotyledons while monocotyledons have one cotyledon. Plants need a mechanism of transporting substances from one part of the plant to another. A network of xylem vessels and phloem tissues form the plant’s transport system. Water and dissolved mineral salts travel in xylem vessels and is driven by transpiration.  Sugars travel in the phloem tissue, the process is called active uptake and it requires energy to move sugars from one point to another.   Roots and stems are modified for uptake and transportation of water and mineral salts as well as dissolved food. Plants lose water through transpiration.

Diffusion is the net movement of molecules or ions from where they are in a higher concentration to where they are in a lower concentration i.e. down a concentration gradient.

Plants are either dicotyledonous or monocotyledonous.  Seeds of dicotyledons have two cotyledons while monocotyledons have one cotyledon. Plants need a mechanism of transporting substances from one part of the plant to another. A network of xylem vessels and phloem tissues form the plant’s transport system. Water and dissolved mineral salts travel in xylem vessels and is driven by transpiration.  Sugars travel in the phloem tissue, the process is called active uptake and it requires energy to move sugars from one point to another.   Roots and stems are modified for uptake and transportation of water and mineral salts as well as dissolved food. Plants lose water through transpiration.