Botany CSS Paper I 2006

FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2006.

BOTANY, PAPER – I

TIME ALLOWED: THREE HOURS MAXIMUM MARKS:100

NOTE: (i) Attempt FIVE questions in all including question No. 8 which is compulsory. All questions carry EQUAL marks.
(ii) Illustrate your answers with suitable diagrams where necessary.

Q.1 (a) Describe the general characteristics of Pteridophytes
(b) Enlist the important characteristics which are common to both pteridophytes and gymnosperms

Q.2 (a) Discuss cell structure, methods of reproduction and importance of blue green algae
(b) Draw a graphic representation of life cycle of Volvox

Q.3 (a) Describe the causing organisms, symptoms and possible methods to control the following plant diseases:

(1) Rust (2) Loose and covered smut (3) Damping Off (4) Early Blight of Potato

(b) Write note on parasexuality

Q.4 (a) What is secondary growth ? Describe the events leading toe secondary growth in a typical dicotyledonous stem
(b) Write notes on: (1) Abscission layer (2) Procambium

Q.5 (a) Describe different types of stomata present in plants
(b) Write notes on: (1) Medullary bundles (2) Nodal anatomy (3) Golgi complex (4) Cork cambium

Q.6 Draw a properly labeled diagrams of the following:
(a) L.S. of funaria capsule (b) T.S. of cycas leaflet (c) L.S. of Dicot stem (d) Graphic life cycle of Polysiphonia

Q.7 (a) What is nomenclature? Describe the history and principles of nomenclature
(b) Explain the role of anatomy and cytology in relation to taxonomy (C) Describe any six rules of nomenclature

Compulsory Question

Q.8 Write only the correct answer in the Answer book. Do not reproduce the question:

1) Plant attached to another plant, not growing parasitically upon it but only using it for support is called:
(a) Epiphyte (b) Epiblast (c) Epicotyl (d) Epigemic (e) None of these

2) Production of morphologically different leaves on the same plant is known as:
(a) Heteromorphy (b) Heterospory (c) Heterophylly (d) Heteroecious (e) None of these

3) Study of fossil plant is called:
(a) Paleozoic (b) Paleogene (c) Paleontology (d) Paleo Sport (e) None of these

4) In which group of plants, stomata open at night:
(a) C3 Plants (b) Hydrophytes (c) Mesophytes (d) CAM Plants (e) None of these

5) Wall of an ovary after it has matured into fruit is called:
(a) Parabellum (b) Pericarp (c) Pericardium (d) Perisome (e) None of these

6) Filament of alga spirogyra shows:
(a) True branching (b) False branching (c) Dichotomous branching (d) No branching (e) None of these

7) Plants that do not produce seeds and have vascular tissues are called:
(a) Cryptogams (b) Vascular cryptogams (c) Phanerogams (d) Atracheats (e) None of these

8) Rice belongs to family:
(a) Asteraceae (b) Malvaceae (c) Poaceae (d) Solanaceae (e) None of these

9) Which of the following microorganism is most widely used in genetic engineering:
(a) E.coli (b) Amoeba (c) Chlorella (d) Spirogyra (e) None of these

10) Mycoplasms are tiny microorganisms which are bounded by:
(a) Cellulose cell wall (b) Pellicle (c) Pectin coat (d) Protein coat (e) None of these

11) A stele in which large overlapping leaf gaps dissect the vascular system into strands, each with the phloem surrounding the xylem is:
(a) Dictyostele (b) Protostele (c) Siphonostele (d) Solenostele (e) None of these

12) What is the shape of helical viruses?
(a) Rod shae (b) Spherical (c) Oval (d) Elliptical (e) None of these

13) Lichens which grow on leaves of other plants are known as:
(a) Terricolous (b) Sexicolous (c) Folicolous (d) Corticolous (e) None of these

14) In which of the following, edible product is obtained from the rhizome?
(a) Sugar beet (b) Ginger (c) Onion (d) Potato (e) None of these

15) Gametophyte of fern is called:
(a) Protocorn (b) Prothallus (c) Thallus (d) Notothallus (e) None of these

16) Colourless plastids found in cells of plant tissue are called:
(a) Chromoplasts (b) Leucocytes (c) Leucoplasts (d) Leucoplasts (e) None of these

17) Stalk of an individual flower of an inflorescence is called:
(a) Pedicarp (b) Peduncle (c) Pericardium (d) peristome (e) None of these

18) Fruit of grasses in which pericarp is united with testa is called:
(a) Caryopsis (b) Carpus (c) Clestocarp (d) Caruncle (e) None of these

19) Who proposed the natural system of classification?
(a) Bentham & Hooker (b) Darwin (c) Lamarck (d) Oswald Tippo (e) None of these

20) Which of the following fungus is edible?
(a) Pythium (b) Penicillium (c) Phyllactinia (d) Albugo (e) None of these

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