PLANT PHYSIOLOGY II: PLANT GROWTH & DEVELOPMENT (BOTS4211)
BSc, Applied Botany - BOTS
Semester: Second Semester
Level: 400
Year: 2019
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-Work-Fatherland P. O. BOX 39 Bambili
School/Faculty: _SCIENCE_ Department:Biological Sciences Lecturer(s): Dr Nouck/Pr
Mendi Course Code: _BOTS4211___Course Title: Plant Physiology II
Date: 3
rd
JULY, 2019_______Halls: ASANJI II ________Time: 08:00-10
Instructions: Answer the questions with very short and simple sentences
Section A: 35 Marks
1) Briefly write short notes on the following: (4 + 3 + 5) = 12 marks)
(i) Phytohormones;
(ii) Give the economic importances and mode of action of them.
2) Interactions between phytohormones (antagonism and synergism) (3 + 3 = 6 marks)
3) Draw a chemical structure of six (6) main phytohormones and briefly write short notes on
their discovery (9 + 8 = 17 marks)
Section B: 35 Marks
(i) Present as graphs, the growth curves height against time, daily growth and absolute %
growth.
(ii) Three differences between a juvenile and mature Solanum nigrum plant are……..
(iii) Nastic movements can be described as …………………….
(iv) Three germination parameters are: ….. And can be calculated as ……….
(v) Scarification is one method of pre-treating seeds. It is described as …….
(vi) Three differences between a corms and bulbs are................. ……… ………….
(vii) Draw an annoted diagram of a mature embryo sac.
(viii) Entomophily is ; ………..Zoophily; ………… Cleistogamy………..Allogamy….
(ix) List three importance of Phytochrome ……………
(x) Three requirements of vernalization are ……………………………………….
II. (10 marks)
Briefly describe the ripening process with three (3) names examples of climacteric and non-
climacteric.
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