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Xylem

Tylosis is in...

Question

Tylosis is intrusion of parenchyma into ______________.

A

Sieve tube

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B

Resin duct

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C

Vessel

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D

All of the above

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Solution

The correct option is A Vessel
Sometimes ray parenchymal tissues intrude themselves inside the adjacent vessel lumens of woody plants creating balloon shaped or bladder shaped structures known as tylosis.
So, the correct option is C.

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Similar questions

Q. Read the following statements.
A. Heartwood is durable, dark and central in position.
B. Tyloses are balloon like outgrowths of xylem parenchyma into the lumen of vessels.
C. Late wood is formed during spring season.

Q. Tylasoid is intrusion of a ___________________.

Q. A) Heartwood is durable, dark and central in position
B) Tyloses are balloon like structures of xylem parenchyma in vessel lumen
C) Latewood is formed during spring season

Q. Which of the following statements are correct?
1. In a ductile material elastic deformation is more predominant than plastic one.
2, Brittleness is not an absolute property of a metal.
3. Rate of loading has no influence in changing the behaviour of a metal from 'ductile' to 'brittle' at low temperatures.
4. Under hydrostatic compression, a brittle metal may change into a ductile one.

Q. Question 4
Materials which can be drawn into wires are called ductile. Which of the following is not a ductile material?

(a) silver
(b) copper
(c) sulphur
(d) aluminium

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