HIGHER PLANTS (BOTS2202)
Biological Science - BS
Semester: Second Semester
Level: 200
Year: 2016
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-Work-Fatherland
P. O. BOX 39 Bambili
School/Faculty: _SCIENCE_ Department:Biological Sciences Lecturer(s): Drs MENDI
and TONJOCK Course Code: _BOTS2202___Course Title: HIGEHR PLANTS
Date: 8
TH
JULY, 2016_______Halls: PBA 07/ PBA08 ________Time: 14:30-17:30
Instructions: ANSWER ALL QUESTIONS (MCQ, Short structural and
Drawings: full booklet)
SECTION A: PTERIDOPHTES AND GYMNOSPERMS 35MARKS
SECTION A1: MCQs 15 Marks
1. Evolutionary important character of Selaginella is (a) heterosporous nature, (b) rhizophore, (c)
strobili, (d) ligule
2. A plant having seeds but lacking flowers and fruits belongs to a) pteridophytes, (b) mosses, (c)
ferns, (d) gymnosperms
3. Pteridophytes differ from mosses/bryophytes in possessing (a) independent gametophyte, (b) well
developed vascular system, (c) archegonia, (d) flagellate spermatozoids
4. Pinus differs from mango in having (a) tree habit, (b) green leaves, (
C
) ovules not enclosed in ovary,
(d) wood.
5. Heterospory and seed habit are often exhibited by a plant possessing (a) petiole, (b) ligule, (c) bract,
(d) spathe.
6. Conifers differ from grasses in the (a) formation of endosperm before fertilization, (b) production of
seeds from ovules, (c) lack of xylem tracheids, (d) absence of pollen tubes
7. Match gametophyte with one of the followings (a) Prothallus (b) Thallus (c) Strobilus (d) Cone
8. Which of the followings is most primitive division? (a) Lycopsida (b) Pteropsida (c) Psilopsida (d)
sphenopsida
9. How many types of sori are found on the underside of fern leaves?(a) 10 (b) 5 (c) 4 (d) 8
10. Indusium protects (a) spores (b) cones (c) sporangia (d) Sporangiosphore
11. The most advanced order in Gymnosperms are (a) Cycadales (b) Gnetales (c) Coniferales (d)
Ginkgoales
12. The leaves of cycas is (a) Pinnately compound (b) Palmately compound (c) Simple (d) Compound
X13
13. Ferns are vascular plants. Why must they live in the same habitat as the non-vascular bryophytes?
(A) They have spores. (B) They lack a cuticle. (C) They have naked sperm. (D) They have a dominant
gametophyte generation.
14. In the gymnosperms, what happens to the megasporangium? (A) The embryo consumes it. (B) It
becomes the seed coat. (G) It becomes the endosperm. (D) It becomes the cotyledons.
15. Two types of leaves found in pines (A) Needle and foliage leaves (B) Needle and scale leaves (C)
Long and short leaves (D) long and spur leaves
Section A2: 20MARKS
1. Microsporophylls can be found in…………….while microphylls can be found in…1mk
2. stocks are ……..while rhizomes are …………1 mk
3. Clubmosses possess roots called-- 1 mk
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4. The reproductive structure of Lycopodium is called ……..lmk
5. Taxonomically Lycophyta is a ………while Lycopodium is a ……….1mk
6. In a table form only, give the common names of the following; Pinus, Picea, Ginkgo, Tsuga, Taxus,
Cuppressus 3mks
7. Circinate venation is found in--------and …………..lmk
8. The order Salviniaceae is made up of two genera ……and …….. 1mk
9. The only species in the Ginkgoales is ——and the leaves resembles the fem———lmk
10. Draw the vegetative shoot of Equisetum ……………….2mks
11. Draw the different types of seed positions in Gymnosperms with examples 2.5mks
12. Draw a pollen grain or mature microspore which shows the final stage of the development of the
male gametophyte in pines. 2.5mks
13. List 2 economic importance each of Pteridophyles and Gymnosperms 2mks
SECTION B: ANGIOSPERMS 35MARKS
Answer all the questions
1) (15mks) Tick the correct answer
i) A seed develops from: a) the fruit b) the interguments, (c) the ovules (d)a pedicel.
ii) The Greek word angeion means a) fossil, b) vessel, c)calyx d)corolla.
iii) A major difference between the leaf of the Magniliopsida and the Liliopsida is a)net venation for
Liliopsida b)parallel venation for Magnoliopsida c)bright-coloured flowers for Liliopsida (d) bright-
coloured flowers for Magnoliopsida.
iv) After meiosis, the haploid mirospores in the pollen tube undergo one of these changes a) the nucleus
in each microspore divides several times by mitosis b)the members of each quartet of microspores fuse
together c)a 3-layered wall develops around each microspore d)a 2-layer wall develops around each
microspore.
v) The funiculus is the stalk of a) a fruit b) the seed c) the leaf d)the flower.
vi) The fruit wall comprises a) the pericarp, the ovule, the mesocarp b)the endocarp, the ovule, the
mesocarp c) the exocarp, the mesocarp, the endocarp d) the pedicel, the calyx, the ovary.
vii) The follicle split along a) one suture b) 2 sutures c)4 sutures d)no suture.
viii) A drupe is derived from a) a compound ovary usually one-seeded b)a one-seeded carpel c)& one-
seeded indehiscent fruit d)an inferior ovary
ix) The tap root system is derived from a) the pericycle b)the stem c)the seminal root d) the leaf.
x) Three primary meristems are a)xylem,phloem,cambium b)procambium, protoderm, cortex
c)epidermis, cambium, phloem d) protoderm, procambium, ground meristem.
xi) Modified adventitious roots include a) Napiform roots b)conical roots c)seminal roots d)haustorial
root
xii) The cork cambium arises from a)the epidermis b)the vascular bundle c)the xylem d)the phloem.
xiii) A leaf with three main veins radiating from the petiole is a) a simple leaf b)an opposite phyllotaxy
c)a compound leaf d)an alternate phyllotaxy.
xiv) Shade leaves are found in a) arid areas b) under the shadow of other leaves c) at tendrils d) at
spines.
xv) The peduncle carries a) a group of leaves b) group of flowers c)a flower d)a leaf
2. (l0mks) Fill in the blanks
i)
4 criteria for classifying fruits are ……..,……….,…… and ………
ii)
4 functions of leaves are ……………,…………,…………. And ………..
iii)
Three examples of pericarp dry dehiscent fruits are ……,…….and ………while three of
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pericarp dry indehiscent are ………..,……… and …………
iv)
The role of the epicotyls in a developing embryo is …….and that of a radical is …….
v)
The main function of the root are ……… and …………..
vi)
A mature embryosac of an angiosperm comprises …………number of nuclei.
vii)
Multiple fruits are formed …….. types of inflorescences.
viii)
Bee-pollinated flowers have ……..and fragrance while those pollinated by short-tongue flies
Have ………… and ………. Odours
ix) The stalks of the following are called ………for single flowers, ……. For leaves, …… for seeds,
…..for inflorescences.
x) Three examples of aggregate fruits are ……….,………. And …………
3. (10 mks) Draw the following
i)
A young developing embryo
ii)
A synconium,
iii)
Nodulose roots,
iv)
Whorled phyllotaxy, and
v)
A pod and a follicle
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