Cambium found in vascular bundles of dicot stem is
1. Intercalary meristem
2. Fasicular cambium
3. Secondary meristem
4. All of the above
Pectin deposited in plant cell walls is
1. excretory product
2. secretory product
3. both 1 and 2 above
4. never deposited
The terminal and axillary buds arise from
1. apical meristem | 2. intercalary meristem |
3. lateral meristem | 4. parenchyma |
Four radial vascular bundles are formed in
1. monocot root
2. dicot root
3. monocot stem
4. dicot stem
Vessels are found in
1. All angiosperms
2. Most angiosperms, few gymnosperms and few pteridophytes
3. All angiosperms and few gymnosperms
4. Most angiosperms and few gymnosperms
Which of the following is true about tracheids and vessels
1. Tracheids are multicellular with narrow lumen
2. Tracheids are unicellular with wide lumen
3. Vessels are multicellular with wide lumen
4. Vessels are unicellular with narrow lumen
The cells of the quiescent center are characterized by
1. having dense cytoplasm and prominent nuclei
2. having light cytoplasm and small nuclei
3. dividing regularly to add to the corpus
4. dividing regularly to add to tunica
Common feature in vessel elements and sieve tube elements is
1. Enucleate condition | 2. Presence of P-protein |
3. Thick secondary wall | 4. Pores on lateral walls |
Secondary growth is best observed in
1. Teak and Pine
2. Deodar and Fern
3. Wheat and maiden Hair Fern
4. Sugarcane and Sunflower
Passage cells are thin walled cells found in
1. Phloem elements to serve as entry points
2. Testa of seeds for emergence of embryonal axis
3. Central area of style for passage of pollen tube
4. Endodermis of roots to facilitate rapid transport of water from cortex to pericycle