Xylem Parenchyma

Q. The balloon-shaped structures called tyloses

1. are linked to the ascent of sap through xylem vessels
2. characterize the sapwood
3. are extensions of xylem parenchyma cells into vessels
4. originate in the lumen of vessels

Q. The only living component of xylem is:

1. Xylem parenchyma
2. Xylem vessels
3. Xylem tracheids
4. Xylem fibres

Q. The elements of xylem tissue that store tannins are

1. xylem parenchyma
2. vessels
3. xylem fibres
4. tracheids

Q. The elements of xylem tissue that store tannins are

1. tracheids
2. xylem parenchyma
3. vessels
4. xylem fibres

Q. Match the following columns.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Xylemvessels& 1.Storefoodmaterials\\ B.Xylemtracheids& 2.Obliteratedlumen\\ C.Xylemfibre& 3.Perforatedplates\\ D.Xylemparenchyma& 4.Chisel-likeends\end{array}$

1. A-4; B-3; C-2; D-1
2. A-2; B-1; C-4; D-3
3. A-3; B-2; C-1; D-4
4. A-3; B-4; C-2; D-1
5. A-1; B-2; C-3; D-4

Q. The given figure shows

1. Hydathode showing gaseous vapor exchange
2. Fungus reproducing by spore formation
3. Algae reproducing by spore formation
4. Structure of Lenticel

Q. The only living component of xylem is:

1. Xylem parenchyma
2. Xylem vessels
3. Xylem tracheids
4. Xylem fibres

Q. Assertion :Xylem is principle water conducting tissue. Reason: It has been recognised by girdling or ringing experiment

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Match the following columns.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Xylemvessels& 1.Storefoodmaterials\\ B.Xylemtracheids& 2.Obliteratedlumen\\ C.Xylemfibre& 3.Perforatedplates\\ D.Xylemparenchyma& 4.Chisel-likeends\end{array}$

1. A-4; B-3; C-2; D-1
2. A-3; B-2; C-1; D-4
3. A-2; B-1; C-4; D-3
4. A-1; B-2; C-3; D-4
5. A-3; B-4; C-2; D-1

Q. The given figure shows

1. Structure of Lenticel
2. Hydathode showing gaseous vapor exchange
3. Fungus reproducing by spore formation
4. Algae reproducing by spore formation

Q. Starch is mainly manufactured by

1. Palisade parenchyma
2. Spongy parenchyma
3. Vascular bundle
4. Guard cells