NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Johari cut out the outer ring of a stem at part X of a plant. He then left the plant in the open and watered it daily. After some time, Johari observed that part of the stem above X had become swollen. Which part of the stem did Johari cut?
A
The tubes carrying food to the stem.
B
The tubes carrying water of the stem were removed.
C
Both the tubes carrying food and water of the stem were removed.
D
Both the tubes carrying food and water of the stem were not removed.
Explanation: 

Detailed explanation-1: -Which part of the stem did Johari cut? The tubes carrying food to the stem.

Detailed explanation-2: -Stems carry water and nutrients taken up by the roots to the leaves. Then the food produced by the leaves moves to other parts of the plant. The cells that do this work are called the xylem cells. They move water.

Detailed explanation-3: -The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.

Detailed explanation-4: -In plants, the transport system consists of tube like passages made up of vascular tissue. There are two types of vascular tissues in plants-xylem and phloem.

There is 1 question to complete.