The main function of the plant tissue shown below is:
1. Storage of nutrients
2. Providing buoyancy to submerged plants
3. Mechanical support to growing parts of a plant
4. Increase in the length of the plant
Function of protoderm is to form
1.pith
2.vascular bundles
3.ground tissues
4.epidermis
Which among the following is not a secondary or lateral meristem
1.intercalary meristem
2.fascicular vascular cambium
3.inter fascicular cambium
4.cork cambium
During the formation of leaves and elongation of stem, some cells ‘left behind’ from shoot apical meristem, it constitute
(1) apical bud
(2) terminal bud
(3) axillary bud
(4) 4.secondary Meristem
Match the column I with column II
|
Column I |
|
Column II |
a. |
Xylem parenchyma |
(i) |
Absent in most of the monocots |
b. |
Sclereids |
(ii) |
Long cylindrical tube-like structure |
c. |
Phloem parenchyma |
(iii) |
Food and tannins |
d. |
Vessel |
(iv) |
Fruit walls of nuts |
(1) a(i), b(ii), c(iii), d(iv)
(2) a(iii), b(iv), c(i), d(ii)
(3) a(ii), b(iv), c(iii), d(i)
(4) a(iii), b(ii), c(i), d(iv)
Lenticels present in woody trees help in
(1) Exchange of gases and transpiration.
(2) Exchange of gases and guttation.
(3) Only exchange of gases.
(4) Elimination of exudates.
Which of the following is not correctly matched?
(1) Companion cell – Albuminous cells in gymnosperm
(2) Companion cell – Associated with sieve cells
(3) Companion cell – Nucleated structure and its nucleus controls sieve tube
(4) Companion cell – Helps in maintaining the pressure gradient in sieve tube
Correct statements among the following is/are
a) different organs in plant show differences in their internal structure
b) monocots and dicots are anatomically similar
c) internal structures shows adaptations to diverse environments
d) apical meristem produce only dermal tissues not vascular tissues
1. a and c
2. b and d
3. a and d
4. b and c
Identify the correct label in the given diagram.
1. A-axillary bud, B-shoot apical meristem, C-vascular tissues
2. A-intercalary meristem, B-axillary bud, C-vascular tissues
3. A-vascular tissues, B-shoot apical meristem, C-leaf primordium
4. A-leaf primordium, B-shoot apical meristem, C-axillary bud
Meristem in grass which regenerate parts removed by grazing harbivores
1.intercalary meristem in shoot apex
2.intercalary meristem in root
3.is secondary in origin
4.intercalary meristem between mature tissues
The bulliform cells in grasses
1. Are present on the upper epidermis of leaves.
2. Become turgid and cause the leaves to curl inwards under stress.
3. Are small resin-filled cells.
4. Help in transpiration.
Which of the following is not a part of the epidermal tissue system?
1.Trichomes
2. Passage cells
3. Guard cells
4. Subsidiary cells
Match the columns I and II, and choose the correct combination from the options given below.
1. a – 1 –b – 2 –c – 3
2. a – 2 –b – 3 –c – 1
3. a – 3 –b – 2 –c – 1
4. a – 3 –b – 1 –c – 2
All tissues except epidermis and vascular bundles constitute the
1. Dermal tissue
2. Ground tissue
3. Conducting tissue
4. Vascular tissue
Pith is made up of
1. Collenchyma
2. Parenchyma
3.Chlorenchyma
4. Sclerenchyma
Separate xylem and phloem bundles are known as
1. Radial
2.Amphivasal
3. Collateral
4.Bicollateral
The tangential, as well as radial walls of the endodermal cells, have a deposition of water-impermeable waxy material in the form of
1. Starch sheath
2.Casparian strips
3.Conjuctive tissue
4. Bundle sheath
Polyarch and exarch condition is found in
1. Monocot stem
2. Monocot root
3. Dicot root
4. Dicot stem
In roots, lateral branches grow from
1.Epiblema
2.Pericycle
3. Cortex
4. Endodermis
Monocot root has
1. Vascular bundles two to four, pith is large and well developed
2. Radial vascular bundles, polyarch xylem, no secondary growth
3. Usually more than six xylem bundles, pith is small or inconspicuous
4. Both 2 and 3
The endodermis is a part of
1. Epidermal system
2.Intrastelar tissue
3.Extrastelar tissue
4. Vascular tissue
Monocot root differs from dicot root in having
1. Open vascular bundles
2. Scattered vascular bundles
3. Well developed pith
4. Radial vascular bundles
Endodermis of dicot stem is also called
1. Bundle sheath
2. Starch sheath
3. Mesophyll
4. Water sheath
A closed collateral bundle is one which is
1. Xylem and phloem occur on different radii
2. Collateral bundle without cambium
3. Xylem and phloem are separated by cambium
4. Collateral bundle with the cambium
Medullary rays are made up of
1. Fibres
2.Tracheids
3. Sclerenchyma cells
4.Parenchymatous cells