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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 |
86%
From NCERT
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Which of the following would be true regarding the anatomy of a monocot leaf?
| 1. | Bulliform cells are absent from the epidermis |
| 2. | Veins form a network |
| 3. | Mesophyll is well differentiated into these parts |
| 4. | Mesophyll is not differentiated into palisade and spongy parenchyma |
Subtopic: Monocot Leaf |
88%
From NCERT
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What is a typical feature of isobilateral leaves?
| 1. | Stomata present on both upper and lower surfaces |
| 2. | Stomata present only on the lower surface |
| 3. | Large air spaces are present within the spongy mesophyll |
| 4. | Differentiated into palisade and spongy mesophyll only on the upper side |
Subtopic: Monocot Leaf |
84%
From NCERT
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What function do bulliform cells perform in monocot leaves?
1. Transport of nutrients
2. Photosynthesis
3. Regulation of leaf rolling and unrolling
4. Protection from herbivores
1. Transport of nutrients
2. Photosynthesis
3. Regulation of leaf rolling and unrolling
4. Protection from herbivores
Subtopic: Monocot Leaf |
94%
From NCERT
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Which of the following is a characteristic feature of monocot leaves compared to dicot leaves?
| 1. | Monocot leaves typically exhibit a parallel venation pattern, whereas dicot leaves display a reticulate venation pattern. |
| 2. | Monocot leaves are generally smaller in size and thickness than dicot leaves. |
| 3. | Dicot leaves usually have sheathing leaf bases, unlike monocot leaves. |
| 4. | Monocot leaves possess multiple main veins that originate from the same point at the base. |
Subtopic: Dicot Leaf | Monocot Leaf |
97%
From NCERT
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Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
1. Tyloses in vessels
2. Closure of stomata
3. Flaccidity of bulliform cells
4. Shrinkage of air spaces in spongy mesophyll
Subtopic: Monocot Leaf |
86%
From NCERT
NEET - 2019
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