1. why do growing shoots need sugar?
2. why do fruits taste sweet?
3. why are there holes in the ends of phloem tubes?
4. in spring, sugar solution rises quickly up through the phloem in the plant stems. give a reason for this.
Answers
Answer:
2 they are full form of sugar
Answer:
1. Plants use a process called photosynthesis to make food. ... Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls.
2.Fruits taste sweet because they are full of sugar. The plant fills them with sugar
3.Phloem consists of sieve tube cells and companion cells for conduction of food These sieve elements are placed end to end . At the the junction of two sieve elements there is a plate called sieve plates having circular pores.
4.Because phloem transports minerals and other solute. particles from lower parts to the stem in bidirectional manner. That is why in spring sugar solution rises quickly through phloem in plant stem.