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T.S of Dicot Stem

The outermost...

Question

The outermost portion of the cortex in stems of flowering plants is and it is in monocotyledonous stems.

A

(i) General cortex (ii) Parenchymatous

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B

(i) Endodermic (ii) Collenchymatous

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C

(i) General cortex (ii) Sclerenchymatous

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D

(i) Hypodermis (ii) Sclerenchymatous

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Solution

The correct option is A (i) General cortex (ii) Parenchymatous
Cortex is the outermost layer of the stem or root of the plant. It is surrounded by a parenchymatous layer. The cortex is unspecialized cells which help as conducting tissue in the plants.
So,the correct option is '(i) General cortex (ii) Parenchymatous

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Similar questions

Q. In monocot stem

(a) Vascular bundles are scattered.
(b) Hypodermis is sclerenchymatous.
(c) Endodermis is well developed.
(d) Stele is atactostele.

Q. Which one is false about monocot stem?
I. Vascular bundles is scattered, cojoint, close, surrounded by sclerenchymatous bundle sheath and cavity.
II. Hypodermis is scelerenchymatous.
III. Peripheral vascular bundles is smaller than centrally placed ones.
IV. Ground tissue is differentiated into cortex, pericycle, pith, etc.
V. Homogeneous parenchymatous ground.

Q. Identify the correct pair of statements from the following.
(I) Pericycle of dicot root parenchymatous but sclerenchymatous in mature monocot root.
(II) Pericycle cells of both dicot ancimonocot roots actively divide to produce lateral toots during secondary growth.
(III) All cells of endodermis are passage cells in dicot.
(IV) Xylem always produced in a centripetal manner in the roots of fruit bearing plants.

Q. Consider the following statements.
a. Epidermis and cortex of monocot root are similar to those of dicot root.
b. Hypodermis of dicot stem consists of sclerenchymatous cells.
c. The cells of bundle sheath in maize leaf serve as temporary storage cells.
d. The dicot leaf is hypostomatic.
Which of these statements are correct?

Q. Match column-I and column-II and select the correct option accordingly:

Column I	Column II
A. Stele	i. Inner most layer of cortex
B. Endodermis	ii. Suberin
C. Casparian strips	iii. The tissue external to vascular cambium
D. Bark	iv. The tissue inner to endodermis

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