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PTS710S-PLANT STUDIES2-2ST OPP-JULY 2024 |
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nAmlBIA UnlVERSITY
OF SCIEnCE Ano TECHnOLOGY
FACULTYOF HEALTH,NATURALRESOURCESAND APPLIEDSCIENCES
DEPARTMENT OF NATURALRESOURCESSCIENCES
QUALIFICATION:BACHELOROF NATURALRESOURCESMANAGEMENT
QUALIFICATION CODE: 07BNRS
LEVEL: 7
COURSECODE: PTS710S
COURSENAME: Plant Studies 2
DATE:JULY2024
DURATION: 2 HOURS
MARKS: 100
SECOND OPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER(S) Prof. J.M. Kamwi
MODERATOR: Prof. E. Kwembeya
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 3 PAGES(Excluding this front page)
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1. The advanced pollination symptoms that angiosperms have over gymnosperms is [5]
one of their advances. Explain this and give some examples.
2. Identify and describe any two issues facing the industry of indigenous natural plant [6]
products.
3. Many plants, particularly in Namibia's more dry regions, are armed with thorns, [12]
prickles, or spines. Explain the distinctions between these three terms, the variety of
these structures, and their purposes as you discuss this statement. Provide pertinent
examples to support your response. If you would like, you can also utilize drawings.
4. There is a family or subfamily in column B for every species in column A. Link the [15]
number in column A and the letter that goes with it in column B, for example, {1) H.
REMEMBER:A family may contain more than one species.
COLUMN A - SPECIES
COLUMN B - FAMILIES
{1) Philenoptera violacea
A. Burseraceae
{2) Schinziophyton rautanenii
B. Bignoniaceae
{3) Ziziphus mucronata
C. Anacardiaceae
{4) Datura innoxia
D. Rhamnaceae
{5) Commiphora angolensis
E. Euphorbiaceae
{6) Kigelia africana
F. Poaceae
(7) Terminalia sericea
G. Strychnaceae
{8) Searsia marlothii
H. Clusiaceae
{9) Baphia massaiensis
I. Combretaceae
{10) Phragmites australis
J. Sapotaceae
(11) Spirostachys africana
K. Ebenaceae
(12) Co/ophospermum mopane
L. Solanaceae
(13) Adansonia digitata
M. Fabaceae / Papilionoidae
(14) Grewia retinervis
N. Fabaceae / Caesalpinioidae
(15) Laggera decurrens
0. Fabaceae / Mimosoidae
P. Malvaceae (new classification)
Q. Moraceae
R. Asteraceae
5. The Namibian genus Commiphora is one that has truly adapted to arid conditions.
5.1 Explain this claim by going into detail about the plant's structure and how it [4]
manages to survive in this country.
5.2 To which family does this genus belong?
[1]
5.3 Name two species of this genus that are endemic to the Namib.
[2]
6. The compound fruit of the Moraceae family has evolved into a highly peculiar
[12]
structure with a special bond between the fruit and its pollinators. Describe this
assertion.
7. Explain the "foliar theory of the carpel" in detail. Goethe's theory remains the
[4]
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most comprehensive explanation for the evolution of the carpel.
8. One of Namibia's most significant and varied families is the Fabaceae family.
8.1 Discuss the importance of this family to the Namibian environment, and to [20]
people. (Refer to different biomes and vegetation types, adaptations of the family,
and mention species that are important and what they are important for.)
8.2 Some taxonomists consider the family to consist of three subfamilies. Describethe [9]
traits that set the three subfamilies apart.
9. Explain the following terms.
(a) Sympetalous
(b) Synfilamentous
(c) Adnation (adnate)
(d) Megacarpa
(e) Microcarpa
(f) Perianth
(g) Androecium
(h) Gynoecium
(i) Diagnostic characters
(j) Type specimen
(k) Flora
10. Eachdiagnostic feature listed in column A corresponds to a genus listed in column B. [10]
Link the number in column A and the letter that goes with it in column B,for example,
(1) B.
COLUMN A - CHARACTERISTICS
COLUMN B - GENERA
(1) Simple, opposite leaves; interpetiolar stipule; inferior A. Acanthosicyos
ovary.
(2) Spiny, leafless shrub endemic to the Namib, with B. Ozoroa
large spiny fruit. The pulp and seeds are eaten.
(3) Fruit a 4-5-winged samara, bark peeling in long C. Ficus
threads.
(4) Shrub or small tree with large bipinnate leaves with D. Euphorbia
small leaflets; lacks thorns, has bright yellow flowers in
spikes.
(5) A member of the daisy family that has silvery leavesE. Commiphora
and is abundant in the Khomas region.
(6) Fruit is a syconium.
F. Combretum
(7) Deciduous or semi-deciduous tree with a rounded G. Berchemia
crown, leaves simple and alternate or spirary arranged,
infloresence in axillary clusters and is abundant in the
Khomas region.
(8) Tree with diameter up to 10m; palmately compound H. Vangueria
leaves; large white flowers; a large ovoid fruit that is high
in vitamin C.
(9) Plants with large, boat-shaped, succulent leaves,/. E/ephantorrhiza
sometimes with toothed margins.
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(10) Plants with aromatic resin, with many endemic}. Tarconanthus
species in the Namib, often pachycauls, often with
peeling bark.
L. Hyphaene
M. Aloe
N. Phoenix
0. Adansonia