Botany -Semester III Important Questions
Semester III- Paper III
Plant Anatomy and Embryology
Unit I
Short Answer type Questions
1. Protoderm 2. Intercalary meristem 3. Histogens 4. Tunica corpus theory 5. Xylem fibres
6. Sclereids 7. Functions of Epidermal Tissue System 8. Economic Importance of Fibres 9. Trichomes 10. Bulliform cells 11. Quiscent centre 12. Hairs 13. Laticifers Tissue 14.Hydothodes 14.Stomata
Essay Questions
- What is a tissue? Give a brief account of major types of tissues?
- What are the cytological characteristics exhibited by the meristematic cells?
- What are meristems? Name their types occurring in plant body?
- Describe the theories of Shoot and root apex
- What are simple tissues? Describe parenchyma or collenchyma or sclerenchyma? Or Differentiate them or Discribe the structure,distribution and functions of different types of simple tissue
- What are secretory tissues? Explain different types of secretory tissues
- Describe the structure of xylem or phloem or Write an account on complex tissue
- Explain various components of epidermal tissue systems
- Explain the epidermal appendages or outgrowths
UNIT-II
Short Answer type Questions
1. Cambial ring
2. Growth or annual ring
3. Early (spring) wood and autum (late) wood
4. non-porous and porous wood
5. soft wood and hard wood
6. ring porous wood and diffuse porous wood
7. heart wood (duramen) and sap wood (laburnum)
8. Cork (Phellem)
9. Secondary cortex (Phelloderm)
10. Cork Cambium
11. Bark
12. Lenticells 13. Rose wood , 14. Red sandals, 15 Nallamaddi , 16.Neem
Essay Questions
1. What is secondary growth? Explain secondary growth in a typical dicot stem.
2. Explain abnormal secondary growth in the stem of Boerhaavia or Dracena or Bignonia or Achyranthes or Beta vulgaris root
or What is anomalous Secondary Growth in Boerhaavia or Dracena or Bignonia, Achyranthus or Beta Vulgaris root
3. Describe the wood structure of Dalbargia latifolia or Pterocarpus santalinus or Termenalia tomentosa or Pterocarpus marsupium or Azardirchta indica
Unit III
Short Answer Type Questions
- Endothecium
- Stomium
- Tapetum
- Tube cell and Generative Cell
- Obturator
- Types of ovule
- Crassinucellate and Tenuinucellate nucellus
- Coenomegaspo
- Monosporic and Bisporic embryo sac 10. T.s of anther
Essay Questions
- Describe the microsporogenesis and development of male gametophyte in Angiosperm
- What is megasporogenesis? Explain it in angiosperms
- Write Ovule Structure and Development of Megasporogenesis
- Give a detailed account of the structure of mature embryo sac
- Describe the development of Monosporic and bisporic Embryosacs
- Describe the development of Tetrasporic Embryosacs
- Describe the different developmental types of female gametophyte in angiosperms
Unit IV
Short Answer Type Questions
- Types of pollen tube entry into the ovule
- Syngamy and Triple fusion
- Haustorial tube
- Dicot and Monocot Embryo
- Melessopalynology
- Paleopalynology
- Archaeopalynology
- Forensic palynology
- Application of palynology
10.Xenogamy and Geitonogamy
Unit IV
Essay Questions
- What is pollination? Explain different types of pollination
- Describe pollen pistil interaction
- What is fertilization? Distinguish between single and double fertilization
- Describe different types of endosperm development. Add a note on the significance of endosperm.
- What is polyembryony. Explain different types of polyembryony
- What is apomixis? Describe different types of apomixes
- Explain NPC system
- What is aperture. Describe the types and functions of apertures.
- Write an account on exine stratification
- Write about shape and symmetry of pollen grains
- Describe Parthenocarpy
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