Root cambium is derived from?
(1) primary meristem
(2) secondary meristem
(3) intercalary meristem
(4) apical meristem
Glycolate induces opening of stomata in
(1) Presence of oxygen
(2) Low concentration
(3) High concentration
(4) Absence of
Which one of the following comprises only simple tissue?
1. Parenchyma, Collenchyma and Sclerenchyma
2. Parenchyma, Xylem and Collenchyma
3. Parenchyma, Xylem and Sclerenchyma
4. Parenchyma, Xylem and Phloem
Match the following
A. | Meristem | i. | Photosynthesis, storage |
B. | Parenchyma | ii. | mechanical support |
C. | Collenchyma | iii. | Actively dividing cells |
D. | Sclerenchyma | iv. | stomata |
E. | Epidermal tissue | v. | Sclereids |
A. A-i, B-iii, C-v, D-ii, E-iv
B. A-iii, B-i, C-ii, D-v, E-iv
C. A-ii, B-iv, C-v, D-i, E-iii
D. A-v, B-iv, C-iii, D-ii, E-i
What is the destiny of primary xylem in a dicot root showing extensive secondary growth?
1. It is retained in the centre of the axis
2 It gets crushed
3. May or may not get crushed
4. It gets surrounded by primary phloem
While removing the skin of a potato tuber, we remove
A. Periderm
B. Epidermis
C. Cuticle
D. Sapwood
In which of the following pairs of parts of a flowering plant is epidermis absent?
A. Root tip and shoot tip
B. Shoot bud and floral bud
C. Ovule and seed
D. Petiole and pedicel
Epiblema of roots is same as
A. Pericycle
B. Endodermis
C. Epidermis
D. Stele
Match the following
A.Cuticle | i. guard cells |
B. Bulliform cells | ii. single layer |
C. Stomata | iii. waxy layer |
D. Epidermis | iv. empty colourless cell |
A. A-iii, B-iv, C-i, D-ii
B. A-i, B-ii, C-iii, D-iv
C. A-iii, B-ii, C-iv, D-i
D. A-iii, B-ii, C-i, D-iv
Identify the tissue system from among the following
A. Parenchyma
B. Xylem
C. Epidermis
D. Phloem