- 1(current)
Q. No.Identify the incorrect comparison between monocots and dicots in general:
| Character | Monocots | Dicots | |
| 1. | Leaves | Parallel venation | Reticulate venation |
| 2. | Roots | Primary root of short duration, replaced by adventitial roots forming fibrous or fleshy root systems | Develops from the radicle. Primary root often persists forming strong tap roots and secondary roots |
| 3. | Plant stem: Vascular bundles | Ring of primary bundles with cambium, differentiated into cortex and stele | Numerous scattered bundles in ground parenchyma, cambium mostly absent, no differentiation between cortical and stelar regions |
| 4. | Flowers | Parts in threes (trimerous) or multiples of three | Fours (tetramerous) or fives (pentamerous) |
Subtopic: Anatomy of Root | Dicot Stem | Monocot Stem | Dicot Leaf | Monocot Leaf | Activity of Vascular Cambium (OLD NCERT) |
85%
From NCERT
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Match each item in Column I with one in Column II and selct the correct match from the codes given:
Codes:
| COLUMN I | COLUMN II | ||
| A | Dicot stem | P | Vascular bundles are arranged in a ring |
| B | Monocot stem | Q | Pith is small or inconspicuous |
| C | Dicot root | R | Vascular bundles are many and scattered in the ground tissue with no definite arrangement. |
| D | Monocot root | S | Pith is large and well developed |
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | R | P |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |
Subtopic: Anatomy of Root | Dicot Stem | Monocot Stem |
80%
From NCERT
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What given anatomical feature is not correct for a dicot stem?
| 1. | Hypodermis | Sclerenchymatous |
| 2. | Endodermis | Starch sheath |
| 3. | Medullary rays | Parenchyma cells |
| 4. | Protoxylem | Endarch |
Subtopic: Dicot Stem |
78%
From NCERT
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You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?
| 1. Secondary xylem | 2. Secondary phloem |
| 3. Protoxylem | 4. Cortical cells |
Subtopic: Anatomy of Root | Dicot Stem |
77%
From NCERT
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Read the different components from (a) to (d) in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem
(a) Secondary cortex
(b) Wood
(c) Secondary phloem
(d) Phellem
The correct order is:
| 1. (a), (b), (d), (c) | 2. (d), (a), (c), (b) |
| 3. (d), (c), (a), (b) | 4. (c), (d), (b), (a) |
Subtopic: Dicot Stem |
61%
- 1(current)
Q. No.
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