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 |
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). |
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
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 |
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 |
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 |
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 |
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 |