Botany pass 4th sem 2016 question paper. | Assam University

Botany pass 4th sem 2016 question paper. | Assam University

TDC Even Semester Exam., 2016 

BOTANY 

(Honours) 

( 4th Semester) 

Paper No. : BOTH 403 

(Biology of Seed Plants) 

Full Marks: 35 

Pass Marks - 12 

Time : 2 hours 

The figures in the margin indicate full marks for the questions 

Answer five questions, selecting one from eack, Unit 

UNIT I 

1. (a) What are ‘phanerogarns’? State the characteristics of naked-seeded plants.
(b) Differentiate between gymnsperms and angiosperms. 2

2. (a) State the characteristic features of angio sperms.
(b) Why are angiosperms considered as the highest-evolved plants in plant kingdom?

UNIT—Il 

3. (a) Discuss the distribution of Gnetales in India. 5
(b) Write the name of two medicinally important species of gymnosperms. 2

4. (a) Write the resemblances of gymnosperm with higher cryptogams. 3
(b) State the evolutionary significance of gymnosperms. 4

UNIT—Ill 

5. (a) Describe the internal structure of a typical dicot leaf with diagram. 4
(b) Describe reticulate venation with diagrams.

(3)
G)
•2C
6. (a) What are pinnately compound leaves?
State their types with examples. 1+2=3
(b) Write about wood anatomy and floral
anatomy. 2+2=4
0
-I

UNIT—IV 

7. (a) “Flower is a modified shoot.” Justify the statement with suitable examples and diagrams. 4
(b) What are accessory whorls of a flower? Write various functions of flower. 1+2=3

8. (a) What is pistil? Discuss monosporic, bisporic and tetrasporic embryo sac development in angiosperms. 1+5=6
(b) What is an orthotropous ovule? 1

UNIT—V 

9. (a) Describe the process of pollen-pistil interaction. 3’/2
(b) Write a short note on apomixis. 31/2

10. (a) Discuss with examples contrivances of self-pollination in angiosperms. State the significance of double fertilization. 3+1=4
(b) Write a note on self-incompatibility. 3

J16 ‘150/1113 2016/SEM/EVEN/BOTH—403/280