The best vital force theory was proposed by

How do plants absorb water?

In the process of ascent of sap, the water and dissolved minerals absorbed by the root system of plants are transported towards which direction?

Given below are two statements.
Statement $I$ - Presence of capillary water is essential.
Statement $II$ - High concentration of solutes in soil water reduces the rate of absorption of water.
In the light of the above statements,select the correct option given below:

Keep some freshly cut flowers in a solution of food colour. Wait for some time for the colour to rise in the flower. When the stem of the flower is held up to the light,coloured strands can be seen inside. Can this experiment demonstrate which tissue is conducting water up the stem?

Which of the following forces plays a very important role in the ascent of sap in plants?