Question
Draw illustrations to bring out the anatomical difference between: Monocot root and Dicot root.
✓
Answer
|
S.No.
|
Monocot Root
|
Dicot Root
|
|
1.
|
Cortex is very wide.
|
Cortex is comparatively narrow.
|
|
2.
|
Outer cortex is usually differentiated into exodermis.
|
Outer cortex is usually not differentiated into exodermis.
|
|
3.
|
Endodermis contains prominent casparian strips only in young roots.
|
Endodermis contains prominant casparian strips.
|
|
4.
|
Xylem and phloem bundles are many in number 8 or more.
|
Xylem and phloem bundles vary in number from 2-6.
|
|
5.
|
Metaxylem vessels are oval or rounded.
|
Metaxylem vessels generally angular.
|
|
6.
|
No secondary growth.
|
Secondary growth takes place.
|
|
7.
|
Pith is large and well-developed.
|
Pith is small or absent.
|
|
|
 |
 |
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Water molecule is very polar. Polar end of molecule attracts opposite charges on another water molecule (acts like magnet). How will you explain this property of water with reference to upward movement of water? Comment on the upward movement of water given the intermolecular hydrogen bonding in water.
Give a comparative account of chordates and non-chordates. Discuss certain characters of chordates which are beneficial from evolutionary point of view.
Complete the following table by filling the blanks marked (A-F) below.
|
Essential element
|
Macro or Micro/ Region of requirement
|
Function
|
Dificiency
|
|
Boron
|
Micro/ apical leaves and seeds
|
Elongation of pollen tube
|
____ (A) ____
|
|
____ (B) ____
|
Micro/ whole plant
|
Involved in OXi-red reactions
|
Development of necrotic spots
|
|
Phosphorus
|
____ (C) ____
|
____ (D) ____
|
Structed plants
|
|
Magnesium
|
Macro/ growing areas of root and stems
|
____ (E) ____
|
____ (F) ____
|
What are the peculiar features that you find in parasitic platyhelminthes?
Singer and Nicolson proposed the model for membrane. Describe the composition of the membrane.
Explain the following processes: Conduction of a nerve impulse along a nerve fibre.
What is meant by formed elements? Describe the particles found in blood.
Write the difference between: Pectoral and Pelvic girdle
Differentiate between the striated, non-striated and cardiac muscles.
Comment briefly on the following :
(i) Pineal Gland (ii) Thymus Gland (iii) Parathyroid Gland.
(i) Pineal Gland (ii) Thymus Gland (iii) Parathyroid Gland.