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Q. No.From the outside to the inside of a mature woody stem, the correct sequence of layers will be:
1. Bark, Vascular cambium, Wood [xylem], Pith
2. Bark, Wood [xylem], Vascular cambium, Pith
3. Pith, Wood [xylem], Vascular cambium, Bark
4. Pith, Vascular cambium, Wood [xylem], Bark
1. Bark, Vascular cambium, Wood [xylem], Pith
2. Bark, Wood [xylem], Vascular cambium, Pith
3. Pith, Wood [xylem], Vascular cambium, Bark
4. Pith, Vascular cambium, Wood [xylem], Bark
Subtopic: Activity of Cork Cambium |
58%
From NCERT
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Match List I with List II
| List I | List II | ||
| (a). | Cells with active cell division capacity |
(i). | Vascular tissues |
| (b). | Tissue having all cells similar in structure and function |
(ii). | Meristematic tissue |
| (c). | Tissue having different types of cells |
(iii). | Sclereids |
| (d). | Dead cells with highly thickened walls and narrow lumen |
(iv). | Simple tissue |
Select the correct answer from the options given below:
| Options: | (a). | (b). | (c). | (d). |
| 1. | (i). | (ii). | (iii). | (iv). |
| 2. | (iii). | (ii). | (iv) | (i). |
| 3. | (ii). | (iv). | (i). | (iii). |
| 4. | (iv). | (iii). | (ii). | (i). |
92%
From NCERT
NEET - 2021
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Match List-I with List-II.
| List-I | List-I | ||
| (a) | Lenticels | (i) | Phellogen |
| (b) | Cork cambium | (ii) | Suberin deposition |
| (c) | Secondary cortex | (iii) | Exchange of gases |
| (d) | Cork | (iv) | Phelloderm |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (iv) | (ii) | (i) | (iii) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (iii) | (i) | (iv) | (ii) |
Subtopic: Activity of Cork Cambium |
88%
From NCERT
NEET - 2021
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Select the correct pair.
| 1. | Cells of medullary rays that form part of a cambial ring - Interfascicular cambium |
| 2. | Loose parenchyma cells rupture the epidermis and form a lens-shaped opening in the bark - Spongy parenchyma |
| 3. | Large colorless empty cells in the epidermis of grass leaves - Subsidiary cells |
| 4. | In dicot leaves, vascular bundles are surrounded by large thick-walled cells - Conjunctive tissue |
72%
From NCERT
NEET - 2021
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Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified:
| A | B | C | D | |
| 1. | Guard cell | Stomatal aperture | Subsidiary Cell | Epidermal Cell |
| 2. | Epidermal Cell | Guard Cell | Stomatal aperture | Subsidiary cell |
| 3. | Epidermal Cell | Subsidiary Cell | Stomatal aperture | Guard Cell |
| 4. | Subsidiary Cell | Epidermal Cell | Guard Cell | Stomatal aperture |
Subtopic: Epidermal Tissue System |
83%
From NCERT
AIPMT - 2010
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Companion cells | P. | Absent in most monocots |
| B. | Albuminous cells | Q. | Lacking in gymnosperms |
| C. | Phloem parenchyma | R. | Generally absent in primary phloem |
| D. | Phloem fibers | S. | Parenchyma cell adjacent to the sieve cell in gymnosperm wood |
| 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: Complex Tissue: Phloem | Monocot Stem |
81%
From NCERT
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Regarding the epidermal tissue system of the plant:
1. Cuticle is present in almost all roots.
2. Only guard cells lack chloroplasts.
3. Guard cells are bean-shaped in grasses.
4. Trichomes are usually multicellular.
1. Cuticle is present in almost all roots.
2. Only guard cells lack chloroplasts.
3. Guard cells are bean-shaped in grasses.
4. Trichomes are usually multicellular.
Subtopic: Epidermal Tissue System |
82%
From NCERT
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Match each item in Column I with one in Column II and select 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 |
82%
From NCERT
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All the following statements regarding collenchyma in plants is true except:
| 1. | Occurs in layers below the epidermis in most of the dicotyledonous plants |
| 2. | Cells are thickened at the corners due to deposition of cellulose, hemicelluloses and pectin |
| 3. | There is considerable amount of intercellular space between cells |
| 4. | Provide mechanical support to the growing parts of the plants |
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
85%
From NCERT
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Palisade parenchyma:
| 1. | are prominent in isobilateral leaf |
| 2. | is abaxially placed in dorsi-ventral leaf |
| 3. | are loosely arranged oval or round cells extending to the lower epidermis in dorsi-ventral leaf |
| 4. | is made of elongated cells vertically arranged parallel to each other in dorsi-ventral leaf |
Subtopic: Dicot Leaf |
79%
From NCERT
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