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Bio 0110:Agricultural Botany Question Paper

Bio 0110:Agricultural Botany

Course:Diploma In Agriculture

Institution: Meru University Of Science And Technology question papers

Exam Year:2011

QUESTION ONE – (30 MARKS)
(a) Name the recognized kingdoms for the classification of living things? (2½Marks) (b) Distinguish between obligate and facultative microorganisms. (2 Marks) (c) (i) Sketch and label a typical plant cell (3½Marks) (ii) Describe the functions of the following organelles (5 Marks) - Nucleus - Rough endoplasmic reticulum - Protoplasm - Lysosome - Plastids (d) Differentiate between the following tissues. (3 Marks) (i) Parenchyma (ii) Sclerenchyma (iii)chlorenchyma (e) (i) What is the difference between a “true” and “false” fruit? (2 Marks) (ii) In which category of fruits does each of the following belong? (4 Marks) - Coconut, Cocos nucifera - Banana, Musa acuminata - Strawberry, Fragaria annaniasa - Maize, Zea mays (f) (i) Why is plant taxonomy important in agriculture? (3 Marks) (ii) You have been assigned a field work task to collect some plant specimens. Briefly mention five details you would include in your field notes. (5 Marks)
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QUESTION TWO – (15 MARKS)
(a) Identify any five specialized stems pointing out clearly their modifications. (5 Marks) (b) Using suitable examples describe the following specialized roots. (5 Marks) (i) Adventitious (ii) Aerating (iii)Haustorial (iv) Tuberous (v) aerial (c) (i) External leaf characteristics are important for identifying plants. What is the manner in which leaves are arranged in a stem called? (1 Mark) (ii) Describe four major types of leaf placement on the stem. (4 Marks)
QUESTION THREE – (15 MARKS)
(a) Summarize using a sigmoid curve the growth phases exhibited by annual plants and their individual parts. (5 Marks) (b) What is the relationship between vegetative and reproductive growth? (3 Marks) (c) Point out the difference between quiescence and dormancy. (2 Marks) (d) Mention five characteristics of adaptation of seeds and seedlings for dispersal and survival. (5 Marks)
QUESTION FOUR – (15 MARKS)
(a) Using a suitable diagram, demonstrate the components of the following parts of a flower. (i) Androecium (ii) Perianth (iii)Carpel (6 Marks) (b) (i) What is an inflorescence? (2 Marks) (ii) Describe two major types of inflorescence. (4 Marks) (c) Interpret the following floral formula (3 Marks) * ; ; K 3 – 6; C 0 ; G 5 – 9 ; ach
QUESTION FIVE – (15 MARKS)
(a) Using specific examples describe the economic importance of flowering plants. (5 Marks) (b) Describe the characteristics and distribution of the following plant families. (10 Marks) (i) Poaceae (ii) Asteraceae (iii)Brassicaceae

Bio 0110:Agricultural Botany Question Paper

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