Translocation is the movement of food in plants and happens in the phloem tubes
Phloem cells are alive and are long tubes with siv plates in between each cell that allow certain cell saps to go through. This is made of fluids containing sugar and dissolved minerals and food substances which are made in the leaf and transported around the plant for immediate use/storage. It travels through both directions
Transpiration is the loss of water and minerals that travels up from the roots to the stem and leaves. This is made of dead cells and are strengthened with a material called 'lignian'. After the leaves it leaves the plant by transpiration. The movement of water and mineral ions are called 'transpiration stream'
transpiration is increased on sunny/hot/windy weather and is caused by the evaporation of water on the leaf surface
can mesure the rate of transpiration by measuring the uptake of water by a plant 1. by measuring the rate of transpiration 2. by measuring the rate of water uptake
start a stopwatch and record the distance moved by the bubble per unit time and keep the conditions throughout the expirement constant
measuring transpiration and stomata
A single air bubble is introduced into the capillary tubing.
The tap on the reservoir is opened to add water to push the air bubble back to zero on the scale.
A timer is started and a set time measured.
The distance the air bubble has travelled along the scale is recorded.
The experiment can be repeated with different environmental conditions
