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Bota 322: Plant Growth And Development Question Paper

Bota 322: Plant Growth And Development

Course:Bachelor Of Education Science

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
EXAMINATION FOR THE AWARD OF DEGREE OF
BACHELOR OF EDUCATION (SCIENCE)

BOTA 322: PLANT GROWTH AND DEVELOPMENT

STREAMS: BED (SCI) TIME: 2 HOURS

DAY/DATE: TUESDAY 13/8/2013 2.30 PM - 4.30 PM
INSTRUCTIONS:

Answer All Questions in Section A and Two Questions in Section B

Section A: Short Answer Questions [30 Marks]

1. Describe double fertilization in flowering plants. [5 marks]

2. Using an illustration, describe the female gametophyte in flowering plants. [5 marks]

3. (a) Explain the importance of seed dormancy. [3 marks]

(b) Highlight four factors that break seed dormancy. [2 marks]

4. Explain five roles of phytochrome in plant growth and development. [5 marks]

5. Discus briefly the secondary growth in flowering plants. [5 marks]

6. Write short notes on tropic responses in plant. [5 marks]

Section B: Essay [40 Marks]

7. Describe the embryogenesis in flowering plants.

8. Write an essay on plant growth regulators.

9. Write an essay on plant tissue culture technology.
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