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Q. No.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: Â Epidermal Tissue System |
 83%
Level 1: 80%+
AIPMT - 2010
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Some vascular bundles are described as open because these:
| 1. | are not surrounded by pericycle |
| 2. | are surrounded by pericycle but no endodermis |
| 3. | are capable of producing secondary xylem and phloem |
| 4. | possess conjunctive tissue between xylem and phloem |
Subtopic: Â Vascular Tissue System |
 80%
Level 1: 80%+
AIPMT - 2011
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Subtopic: Â Activity of Cork Cambium |
Level 4: Below 35%
AIPMT - 1998
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Subtopic: Â Activity of Cork Cambium |
 91%
Level 1: 80%+
AIPMT - 2002
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Vessels are found in:
| 1. | All angiosperms and some gymnosperm |
| 2. | Most of the angiosperm and few gymnosperms |
| 3. | All angiosperms, all gymnosperms, and some Pteridophyta |
| 4. | All pteridophyta |
Subtopic: Â Complex Tissue: Xylem |
 54%
Level 3: 35%-60%
AIPMT - 2002
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Subtopic: Â Vascular Tissue System |
Level 4: Below 35%
AIPMT - 2002
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Which of the following statements about cork cambium is incorrect?
| 1. | It forms a secondary cortex on its outside |
| 2. | It forms a part of periderm |
| 3. | It is responsible for the formation of lenticels |
| 4. | It is a couple of layers thick |
Subtopic: Â Activity of Cork Cambium |
 55%
Level 3: 35%-60%
NEET - 2020
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Large, empty colourless cells of the adaxial epidermis along the veins of grass leaves are:
| 1. | Lenticels | 2. | Guard cells |
| 3. | Bundle sheath cells | 4. | Bulliform cells |
Subtopic: Â Monocot Leaf |
 86%
Level 1: 80%+
NEET - 2020
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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: Â Activity of Cork Cambium |
 87%
Level 1: 80%+
NEET - 2021
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The transverse section of a plant shows following anatomical features:
| a. | Large number of scattered vascular bundles surrounded by bundle sheath. |
| b. | Large conspicuous parenchymatous ground tissue. |
| c. | Vascular bundles conjoint and closed. |
| d. | Phloem parenchyma absent. |
Identify the category of plant and its part :
| 1. | Monocotyledonous root |
| 2. | Dicotyledonous stem |
| 3. | Dicotyledonous root |
| 4. | Monocotyledonous stem |
Subtopic: Â Monocot Stem |
 77%
Level 2: 60%+
NEET - 2020
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