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PTP610S - PLANT PHYSIOLOGY - 1ST OPP - JUNE 2024 |
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nAmlBIA UnlVERSITY
OF SCIEnCE Ano TECHnDLOGY
FACULTYOF HEALTH,NATURAL RESOURCESAND APPLIEDSCIENCES
DEPARTMENTOF AGRICULTURALSCIENCESAND AGRIBUSINESS
QUALIFICATION:BACHELOROF SCIENCEIN HORTICULTURE
QUALIFICATIONCODE: 07BHOR
LEVEL: 7
COURSECODE: PTP610S
COURSENAME: PLANT PHYSIOLOGY
DATE:JUNE 2024
DURATION: 3 HOURS
MARKS: 100
FIRSTOPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER(S) Dr Grace N. Kangueehi
MODERATOR: Prof Theo Wassenaar
INSTRUCTIONS
1. Answer ALL the questions.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLEMATERIALS
1. Examination question paper
2. Answering book
THIS QUESTION PAPERCONSISTSOF 1 PAGE(Excluding this front page)
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QUESTION 1
1.1. What is the difference between angiosperms and gymnosperms?
(2)
1.2. What is phytochrome and Pfr and why are they important to plants?
(3)
1.3. What do you understand by the term Glycolysis?
(5)
1.4. Describe the soil, plant, and atmosphere continuum (SPAC).
(6)
[16]
QUESTION 2
2.1. How does soil pH affect nutrient availability, soil microbes, and root growth?
(6)
2.2. Define active transport and then list and discuss the three (3) active transport processes
in a plant.
(7)
2.3. Define photoperiodism and describe its three (3) forms?
(7)
2.4. Deliberate how water potential, evapotranspiration, stomata! regulation and solute
concentration differences between the xylem and phloem influence transportation of water
in plants.
(9)
2.5 List four (4) plant growth hormones and describe their functions.
(8)
[37]
QUESTION 3
3.1. Explain how photosynthates are transported in plants.
(10)
3.2. Describe tissue culture and list four advantages of propagation by tissue culture. (10)
3.3. Define plant anabolism and describe the three stages of anabolism in details.
(12)
3.4. Discussthe Calvin Cycle in detail and elaborate on the steps involved and the end product
of each step.
(15)
[47]
Final Marks: 100
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