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Sbt 308: Plant Growth And Development Question Paper

Sbt 308: Plant Growth And Development

Course:Bachelor Of Science

Institution: Kenyatta University question papers

Exam Year:2011

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2011/2012
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE

SBT 308: PLANT GROWTH AND DEVELOPMENT

DATE: Wednesday 7th December, 2011 TIME: 2.00 p.m. – 4.00 p.m.
______________________________________________________________________________
INSTRUCTIONS
Answer ALL questions in Section A and ANY ONE in section B. Answers in Section A should be concise and clear and should be written in the spaces provided in the question paper.
Answers to Section B should be written in the booklet provided. Use illustrations and examples where appropriate. Questions in each section carry equal marks.

SECTION A – SHORT ANSWER QUESTONS (40 MARKS)
1. Describe vernalization in plants.
2. Describe five physiological effects of cytokinins in higher plants.
3. Describe the tryptophan dependent pathways in the biosynthesis of indole-3-acetic acid.
4. Describe how plant growth substances are translocated in plants.
5. Describe the interaction between hormones in plant growth and development.
6. Describe five bioassays of auxins.
7. Describe how the growth of plants can be assessed in the green house.
8. Outline five physiological effects of gibberellins in plants.

SECTION B
Answer ANY ONE question. (30 marks)
1. Discuss the applications of plant growth substances in agriculture and forestry
2. Describe different types of plant movements.
3. Discuss the mechanism of action of plant growth substances.

Sbt 308: Plant Growth And Development Question Paper

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