The transport of food from one part of a plant to another is called
Answers
Answer: translocation
Explanation:
Answer:
The transport of food such as organic materials through the phloem from the source to the sink is called as translocation.
Explanation:
➣ 90 of the total solutes is carbohydrate in the form of sucrose. It is a highly soluble sugar.
➣ Sucrose is later converted into monasaccharides, glucose and fructose.
Routes of translocation:
➣ Downward translocation: Most common pathway. The food which is synthesised in the leaves is transported to the stem and root system. This food is used in the maintainenance, metabolism, growth and storage.
➣ Upward translocation: The translocation in the direction of root to leaves or any other apical region is definned as upward translocation.
➣ Lateral translocation: It is a slow process and acts in the tangential direction.
Mechanism of translocation:
➣ Mass flow or pressure flow hypothesis: It was proposed by Ernst Munch in 1930. According to this, organic materials or solutes are transported from the site of synthesis which is called as source to the consumption site called as the sink.
Steps in translocation:
➣ Synthesis: Organic solutes are prodced at the source.
➣ Phloem loading: Solutes are transportem to the sieve tubes via active transport. This is called as phloem loading.
➣ Transport of solutes: Pressure inside sieve tubes will be greater than at the sink. As a result, solute move to the sink. This way solutes are transported throughout the plant.
➣ Sinks. The reigons where solutes are utilised or stored.
➣ Phloem unloading: Due to the result of continous pressure gradient between source and sink, phloem gets unloaded via active transport.