Anatomy Of Flowering Plants Question 32
Question: In woody dicotyledons, the arrangement of vessels is either diffuse porous or ring porous. Based on the these data, which one of the following statements is correct?
Options:
A) Ring porous vessels are specialised and are used for conducting more water for a shorter period only, when trioses occur early in the vessels.
B) Although diffuse porous vessels are not so specialised as ring porous vessels, they conduct more water at all periods and through new xylem vessels added gradually during development.
C) Diffuse porous vessels carry more water and also faster because of a greater number of small vessels having greater capillary force.
D) Ring porous vessels conduct more water as they are formed early during development, when the need for water is great.
Show Answer
Answer:
Correct Answer: D
Solution:
The correct answer is D. In woody dicotyledons, ring porous vessels conduct more water because they are formed early during development, precisely when the plant has a greater need for water.
These specialized vessels allow efficient water transport during critical growth stages.
BETA
