Lower Plants (BOTS2101)
Biological Science - BS
Semester: Resit
Level: 200
Year: 2018
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-Work-Fatherland
P. O. BOX 39 Bambili
School/Faculty: _SCIENCE____________ Department:_Biological Sciences
Lecturer(s): _NJOUONKOU and TACHEM_________
Course Code: _BOTS2101_______ Course Title: lower plants
Date: _06/09/2018_______Halls: __Asanji ________Time: 7:30-9:30
Instructions: answer all questions in order
Part 1
MYCOLOGY
The director of an environmental NGO needs a table summarizing the characteristics of different phyla of fungi; but
the one he downloaded from internet has some missing information. As a student who offers a course in mycology,
he consults you to help him to complete the table for an incentive of fcfa 200 000 (an amount that could help you to
solve, some of your emergent problems). Using numbers in order (1, 2, 3, ....) provide him the missing information
using one or maximum 2 words in each case (DON’T REPRODUCE THE TABLE). 22 marks
Phylum/
Embranchme
Cell
wall
Cell wall
composition
Type of thallus
or hyphae
Flagellate
d cell
Sexual
reproduction
Origin of
sexual
Basidiomyco
3?
Chetin/6?
9?
13?
16? <
21? t
Zygomycota
Present
Chitin/7?
10?.
14?.
17? <
X
Myxomycota
4? .
11?
Present
18?
X
Oomycota
Present
.8?
Coenocytic
Present
19?
\
'
x
Present
Chetin/gluca
n or mannan
Septate
hyphae/
Absent
Trichogamy/
somatogamy
Internal in
ascus (asci)
Deuteromyco
S? '
Chetin
12?'
15? ,
20?
22?
Present
Chetin/cellul
Coenocytic
Present
Planogamy/ooga
Algology and Bacteria
23-
Illustrate without the following mode of fertilization in Algae: a) cystogemy, b) anisogamous planogamy, c)
isogamous planogamy, d) trychogamy. (4 x 1.5 marks)
24-
Illustrate the following mode of flagellation in algae: a) anisokont, b) stephanokont, c) isokont. (3x1 mark)
25- Give the name of one species of algae that is: 2 maks
25a) eaten by humans, HO
25b) used in syrups as thickener,
25c) in production of agar,
26-
Give without comments the different modes of gene exchange in Bacteria. (1.5 marks)
27-
a) What is the difference between archaebacteria and Eubacteria?
b) These two groups belong to which kingdom according to Whittaker (1969)? (1 marks)
28. MCO (5 marks)'. Good answer 1 mark; No answer 0 mark; wrong answer -0,5 mark
Using only letter, (A, B, C or D) select the good answer for the following questions
28a- Coconut is a: A) Cryptogam, B) Bryophyte, C) Thallophyte, D) Cormophyte
28b- Which group of bacteria can thrive in extreme salinity? A) Eubacteria, B) Thermoacidophile bacteria,
Q Halophiles bacteria, D) Methanogens bacteria.
28c-which species of bacteria is used in biological control in agriculture? A) Spirulina sp., B) Bacillus
thuringiensis, C) Treponema pallidum
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