Internal structure of monocot root - class-XI
Description: internal structure of monocot root | |
Number of Questions: 34 | |
Created by: Rekha Rai | |
Tags: anatomy of flowering plants plant tissues and anatomy biology tissue and tissue system histology and anatomy of flowering plants botany internal structure of root, stem and leaf plant anatomy and plant physiology |
The number of xylem bundles in monocot roots are:
Monocotyledonous root differs from dicot root in which of the following internal features (a to d)?
a. Presence of parenchymatous pericycle
b. Absence of fewer xylem bundles
c. Presence of large and well-developed pith
d. Presence of parenchymatous cortex without intercellular spaces
Read the following statements and choose the correct option.
a) Pith is large and well developed in roots of monocot plants.
b) Bundle sheath is presents in dicot stem.
c) Water containing cavities are present within vascular bundles of monocot stem.
A typical monocotyledonous root is characterized by
Bundle sheath cells are similar to mesophyll cells in
a. Having grana.
b. Having large number of chloroplasts
c. Being involved in $CO _2$ fixation
d. Being impervious to gaseous exchange
e. Their primary $CO _2$ fixation product.
The character of monocot is
In monocots, root cap is formed by
Monocot root differs from dicot root in having
Polyarch and exarch vascular bundles are the characteristic of
Which of the following is correct sequence of layers in typical monocot root from outside to inside?
Passage cells are more distinct in endodermis of
Passage cells are found in
Exarch and polyarch xylem strands are found in
Exodermis occurs in
A common character of monocot and dicot roots is
Pick u the wrong differences between dicot and monocot root.
Character | Dicot Root | Monocot Root | |
---|---|---|---|
(a) | Activity of pericycle | Lateral root production | Secondary growth and cambium |
(b) | Vascular bundle | Diarch to tetrarch | Polyarch |
(c) | Cambium | Lateral, developed | Absent |
(d) | Pith | Well developed | Poorly developed |
A typical monocotyledonous root is characterised by -
Read the following statements :
(i). In monocot root, a large number of vascular bundles are arranged in the form of a ______ around the central ____
(ii). Due to the presence of _, the endodermal cells do not allow wall to wall movement of substances between cortex and pericycle, in a primary dicot root.
(iii). The epidermis of stem of sunflower bears several unbranched _____ hair.
(iv). The central portion of a dicot stem is usually occupied by ______ comprising of thin-walled parenchymatous cells
Select the option that correctly fills the blanks in any two of them.
Polyarch condition is found in
Passage cells are more distinct in endodermis of
Polyarch and exarch condition of found in
Eustele is characteristic of
Two cross-sections of stem and root appear similar, when viewed by naked eye. But under microscope, they can be differentiated by
An example of monocot, fibre yielding plant is
Centripetal xylem is found in
Polyarch and exarch condition is found in
In roots, lateral branches grow from.
Passage cells occur in
As compared to a dicot root, a monocot root has
Out of the following, how many features belong to monocot root?
1. Radial vascular bundles
2. Closed vascular bundles
3. Endodermis absent
4. Pith developed
5. Polyarch condition
Which of the following is seen in a monocot root?