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Bio0113:Plant Physiology Question Paper

Bio0113:Plant Physiology

Course:Diploma In Agriculture

Institution: Meru University Of Science And Technology question papers

Exam Year:2013

QUESTION ONE 30 MARKS
(a) Define translocation (2Marks) (b) State four factors that affect the opening of the stomata. (4Marks) (c) Outline the deficiency symptoms of phosphorous in plants. (5Marks) (d) Name four steps that are involved in the import of sugars into sink cells. (4Marks) (e) Outline the general functions of essential mineral elements. (5Marks) (f) Explain how the xylem vessels are adapted to their functions. (5Marks) (g) State the factors that affect the rate at which photosynthesis takes place. (5Marks)
QUESTION TWO 15 MARKS
(a) Briefly describe the pathways involved in the absorption of water in the roots. (9Marks) (b) Discuss water absorption mechanism theories. (6Mark) QUESTION THREE 15 MARKS Explain starch-sugar theory of stomatal opening. (15Marks)
QUESTION FOUR 15 MARKS Discuss the steps involved in the Calvin cycle. (15Marks)
QUESTION FIVE 15 MARKS Describe various plant regulators and their effects on plant growth. (15Marks

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