1. Acetylcholine is the most common. Neurons that release it are called cholinergic. Cholinergic neurons include all preganglionic neurons of the autonomic nervous system, postganglionic neurons of the parasympathetic nervous system and some postganglionic neurons (sweat glands) of the sympathetic nervous system.cetylcholine is the most common. Neurons that release it are called cholinergic. Cholinergic neurons include all preganglionic neurons of the autonomic nervous system, postganglionic neurons of the parasympathetic nervous system and some postganglionic neurons (sweat glands) of the sympathetic nervous system.
Translocation is the movement of materials from leaves to other tissues throughout the plant. Plants produce carbohydrates (sugars) in their leaves by photosynthesis, but nonphotosynthetic parts of the plant also require carbohydrates and other organic and nonorganic materials.t is pressure, generated in the sieve elements and companion cells in source tissues. In leaves, sugar is synthesized in mesophyll cells (the middle layer of the leaf), and is then actively pumped into the phloem, using metabolic energy.
1.Water transport-in xylem from the roots up the plant. A passive process = transpiration 2.Sugar transport-sucrose is the main sugar transported in phloem from leaves up and down the plant.An active process-needs ATP. Process called translocation Look up transpiration and translocation Discuss the cells used in each, the direction and the mechanism. Peter S Â· 6 years ago.ugar i.e. glucose is produced in leaves (green parts of the plant) and it is transported to other parts of the plants such as reproductive organs, fruits and seeds, roots and stem (growing tips etc) through phloem tissue. Xylems are made up of dead cells while phloem tissue is made up of living cells.