Q12. They are pipe-like consisting of a group of specialised cells. They transpor
substances and form a two-way traffic in plants. Which of the following term
qualifies for the features mentioned above?
(a) Xylem tissue (b) Vascular tissue (c) Root hairs (d) Phloem tissue
Answers
Answer:
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Here to help,
I am giving reason for every option.
XYLEM TISSUE
it is given that there pipe like consisting of a group of specialised cells transport substances and form a two way traffic in plants. we know that xylem tissue carries water and Minerals only upward to the PLANTS. so this CANNOT be the answer as it does not forms A two way traffic.
VASCULAR TISSUE
Vascular tissue means both xylem and phloem tissues and I discussed above that xylem tissue does not forms a two way traffic so vascular tissue CANNOT be the answer.
ROOT HAIRS
Root hairs are involved with xylem tissues. they increase area of absorption for water and Minerals and transport the nutrients to xylem tissue. Again I would like to remind that xylem does not forms a two way traffic so thus also CANNOT be the answer
PHLOEM TISSUE
We know that phloem transports food and all parts of plants including roots stems branches leaves fruits flowers etc. need food for their survival therefore phloem tissue transports the food was also in downwards also that means it forms a two way traffic. that's why this is the answer.
I WANTED YOU TO UNDERSTAND WHY PHLOEM WILL BE THE ANSWER THAT'S WHY I GAVE REASON FOR EVERY OPTION.
hope you will not just copied answer that understand it also.
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