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
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
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). |
Match List-I with List-II.
| List -I | List-I |
| (a)Lenticels (b)Cork cambium (c) Secondary cortex (d)Cork |
(i) Phellogen (ii) Suberin deposition (iii) Exchange of gases (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)
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 |
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
Large, empty colorless cells of the adaxial epidermis along the veins of grass leaves are
(1) Lenticels
(2) Guard cells
(3) Bundle sheath cells
(4) Bulliform cells
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
Identify the incorrect statement.
| 1. | Sapwood is involved in conduction of water and minerals from roots to leaves. |
| 2. | Sapwood is the innermost secondary xylem and is lighter in colour |
| 3. | Due to deposition of tannins, resins, oils etc., heartwood is dark in colour. |
| 4. | Heart wood does not conduct water but gives mechanical support. |
What is incorrect about Cycas?
(1) Its xylem has vessels
(2) It has circinate venation
(3) It does not have well organised female flower
(4) Its roots possess some blue-green algae
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