PLANT PHYSIOLOGY
TRANSPORT IN PLANT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
To help support the plant
|
|
|
To transport water
|
|
|
To transport sugars
|
|
|
To transport mineral ions
|
Detailed explanation-1: -Complete answer: The storage of metabolic products is not a function of xylem.
Detailed explanation-2: -Water and sugars are transported by xylem vessels and phloem tubes, respectively. Since these two conduits are hydraulically connected, it can be expected that both transport processes are physiologically coupled.
Detailed explanation-3: -A high hydrostatic pressure is generated in the sieve tubes of the collection phloem and water from the xylem is attracted. Sucrose, RFOs and polyols are transported in the sieve tubes to the sink organs in the transport phloem.
Detailed explanation-4: -The main function of the xylem is water transport from roots to the other parts of the plant. Xylem also provides mechanical strength. Tracheids and vessels are the main elements for conducting water.
Detailed explanation-5: -Xylem does not help in the transport of photo sent its or sugars. Instead, it helps only in the transport of water and minerals. Therefore, the first statement is not true.