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Bot 111:Basic Botany Ii Question Paper

Bot 111:Basic Botany Ii

Course:Basic Botany Ii

Institution: University Of Eldoret question papers

Exam Year:2007

Answer all questions from section A and any three from section B
Section A(28Marks)
1.a)List down three factors one considers when collecting plants.
b)What are the three methods used in plant identification.
c)Briefly state the purposes or reasons for a botanical selection.(6marks)
2.a)State two resemblances between pteridophytes and bryophytes.
b)Define a taxonomic key and mention two types of widely used keys.
c)What is double fertilization?(4marks)
3.Give two anthropogenic and two natural sources of sulphur dioxide.(2marks)
4.What is the effect of halide-containing aerosols in the atmosphere?(2marks)
5.State two human actions that can cause desertification.(2marks)
6.What are the effects of excess plant nutrients in water?(2marks)
7.What is species frequency and species density?(5marks)
8.Name the instruments used in the measurements of abiotic and biotic factors.(5marks)
Section B(42marks)
9.a)Describe the types of pollination in Angiosperms and Gymnosperms.
b)What is a herbarium and why it is important in plant research?(14marks)
10.a)What is plant pressing?
b)Briefly state the procedures for pressing plant specimens.(14marks)
11.Describe the various sources of atmospheric pollution and their effects.(14marks)
12.Discuss the types of plant interactions.(14marks)
13.Describe briefly how transects are used in ecological studies.(14marks)

Bot 111:Basic Botany Ii Question Paper

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