SPECIAL EXAMINATION (CATTES ONE)
MODULE CODE: PST 05210
MODULE NAME: BASIC PHARMACOGNOSY
TIME: 2:00 HOURS DATE: ……………………….
GENERAL INSTRUCTIONS:
1. Read all instructions carefully.
2. Write your examination number on every page of question paper and answer sheets.
3. Cellular phones are not allowed in the examination room.
4. Each essay question should be answered on not more than three (3) hand written pages.
5. No additional answer sheet will be provided.
6. Failure to follow instructions will lead to the loss of marks.
FOR OFFICIAL USE ONLY
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SECTION |
TYPES OF QUESTIONS |
ALLOCATED MARKS |
SCORED MARKS |
INITIALS OF MARKER |
INITIALS OF VERIFIER |
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A |
MULTIPLE CHOICE |
10 |
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B |
MULTIPLE TRUE/FALSE |
10 |
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C |
MATCHING ITEMS |
10 |
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D |
SHORT ANSWER |
40 |
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E |
ESSAY |
30 |
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TOTAL |
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100 |
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SECTION A: MULTIPLE CHOICE QUESTIONS (10 MARKS)
Instructions:
· This section consists of ten (10) questions
· Choose the LETTER of the most correct answer and write it in the box provided using CAPITAL letter
· One mark will be awarded for each correct answer
· Response with SMALL letter will NOT be awarded any mark
1. Answer item (i) – (x) by choosing the letter of the most correct answer and write in the box provided using CAPITAL letter:
i. Which of the following medicinal plant its generic name may indicate certain characters of the plant ?
A. Cinchona Ledgeriana
B. Artemisia cina Berg
C. Myristica fragrans
D. Glycyrrhiza
E. Atropa belladonna
ii. Candle wax coloured yellow and being offered as Beeswax is an example of which method and effects of adulteration?
A. Admixture
B. Substitution
C. Sophistication with inferior varieties
D. Addition of worthless heavy materials
E. Deterioration
iii. Dry fruits which splits along inner suture only is…...
A. Cassia angustifolia
B. Seed coat as in maize
C. Strophanthus
D. Cashew nut
E. Rice
iv. Leaves with sharp stiff point is called…………………
A. Dentate
B. Serrate
C. Spiny
D. Crenate
E. Repand
v. Root hairs is found in which zones of the root?
A. Zone of differentiation
B. Zone of elongation
C. Zone of maturation
D. Zone of thickness
E. Zone of division
vi. A flower pollinated by birds have the following features…
A. May have pollens which floats on water
B. Have white flowers with strong fruity smell and open at night
C. Are log tube shaped, have bright red or yellow colours, and with no fragrance
D. Have bright colours, sweet fragrance and produce nectar
E. have large stigmas, no or little fragrance, and non- sticky pollens
vii. Which of the following plant require slowly drying at moderate temperature due to enzymatic desired after collection?
A. Digitalis
B. Ocimum basilicum
C. Cocoa seeds
D. Urtica dioica
E. Nicotiana
viii. A structure that arises from the testa near the hilum is called ……..
A. Albuminous
B. Caruncle
C. Embryo
D. Tegmen
E. Exalbunious
ix. A structure of young bark which may be composed of parenchyma or fibres, groups of fibres often occur opposite each group of phloem is ………..
A. Endodermis
B. Primary cortex
C. Epidermis
D. Phloem
E. Pericycle
x. Which of the following statement(s) regarding Caryopsis is correct...
A. A winged fruit
B. Example is Cassia angustifolia
C. Has fused testa and pericarp
D. Pericarp is relatively hard and heavy
E. Split both
SECTION B: MULTIPLE TRUE/FALSE QUESTIONS (10 MARKS)
INSTRUCTIONS:
· This section consists of Four (4) questions with five (5) options each
· Write the word “TRUE” and NOT letter ‘T’ for a correct statement and the word “FALSE” NOT letter ‘F’ for incorrect statement in the space provided before each option
· All responses should be in CAPITAL letters
· Half (½) a mark will be awarded for each correct response
· Responses with letters “T” and “F” will not be awarded any mark
· There will be a penalty of half (½) of allocated marks for responses with small letters.
2. Regarding the differences between monocot and dicot roots
A. ………monocot root pith is absent and present in dicot
B. ………monocot root conjuctive tissue is sclerencchymatous and in dicot is parenchymatous
C. ………Metaxylem vesssels are circular in cross section and in dicot is polygonal
D. ………Monocot has secondary growth while dicot has no secondary growth
E. ………Monocot xylem is tetrarch while in dicot is polyarch
3. Regarding methods of vegetative propagation
A. …………By the development of bulbs-Colchicum
B. …………Rhizomes -Jalap
C. …………By Division-Rhubarb
D. …………By runners -Chamomile
E. …………By layers -Cascara
4. Consider general conditions and techniques when drying Fruits and Seeds
A. …………They are normally partially dry before harvesting
B. …………They may be air- dried afterwards
C. …………They should be washed
D…………They should be sliced
E. …………They may be bleached through the drying process
5. Which of the following statements is/are correct concerning of simple dry dehiscent fruits
A. ………… a winged fruit
B………….. dry fruit in which testa and pericarp are fused
C. …………Pericarp is relatively hard and heavy
D…………are dry fruits which split along both dorsal and ventral sutures to releas their seeds
E………….Dry fruits which splits along inner suture only
SECTION C: MATCHING ITEMS QUESTIONS (10MARKS)
INSTRUCTIONS:
· This section consists of two (2) questions matching with five (5) options each.
· USE CAPITAL LETTERS
· Each correct response is awarded one (1) mark.
· Each item from column B is used only once
6. PART ONE: Match descriptions in column B with responses in column A by writing the letter of the correct response in the space provided on each option.
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COLUM A |
ANSWERS |
COLUM B |
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1. Coconut |
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A. Require (1000-2000M) B. Require (800-1800M) C. Require (100-200M) D. Needs a maritime climate E. Produce less constituents when grown in higher altitudes F. Require elevation G. Produce bitter constituents when grown in higher altitude |
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2. Sugar cane |
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3. Tragacanth |
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4. Tea |
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5. Coffee |
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PART TWO: Match the item in column B with examples in column A by writing the letter of the correct answer in the space provided
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COLUM A |
ANSWERS |
COLUM B |
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1. Berries |
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A. Berries with a thicker skin containing oils B. A fleshy fruit with mature ovary and accessory structures C. Are soft aggregate fruits D. Have edible exocarp and fleshy mesocarp and inedible, hard stone-like endocarp E. e.g. strawberries, blackberries F. Have soft epicarp and fleshy mesocarp and endocarp G. Berries with a comparatively thick exocarp or rind |
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2. Hesperidiums |
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3. Pepos |
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4. Drupes |
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5 . Pome |
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SECTION D: SHORT ANSWER QUESTIONS (40 MARKS)
INSTRUCTIONS:
· This section consists of eight (8) questions.
· Write your answers in the space provided on each question
· Write a readable handwrite; DIRTY WORK IS NOT ALLOWED.
7. Mention six advantages of Asexual propagation (6 marks)
………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
8. Outline six (6) differences between monocot and dicot stem (6marks)
……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
9. Mention four disadvantages of wild plant collection (4marks)
………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
10. Outline three (3) types of fruits (3marks)
……………………………………………………………………………………………… ................................................................................................................................................
………………………………………………………………………………………………
11. Mention four general conditions and techniques when drying Leaves/Herbs (4marks)
…………………………………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………………………………….
12. List six external feature of the seed ( 6 marks)
………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
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………………………………………………………………………………………………………………………………………………………………………………
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13. Mention five reasons for drying drugs obtained from medicinal plants (5marks)
i. …………………………………………………………………………………………………………………………………………………………………………………………
ii. …………………………………………………………………………………………………………………………………………………………………………………………
iii. …………………………………………………………………………………………………………………………………………………………………………………………
iv. ……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
v. …………………………………………………………………………………………………………………………………………………………………………………………
14. List six general factors to consider when harvesting/collecting drugs from medicinal plants
(6marks)
…………………………………………………………………………………………………………………………………………………………………………………………
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SECTION E: GUIDED ESSAY QUESTIONS (30 MARKS)
INSTRUCTIONS:
· This section consists of Two (2) questions which are supposed to be answered in a narrative way
· Write your answer on the empty pages of this question paper; each question should start on a new page.
· There will be a penalty of three (3) marks if questions are not answered in essay form
15. Explain storage of crude drugs (with at least five points) 15 MARKS
16. Explain four process of drying 15 MARKS
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Serial number |
Question number ……………………………………………… |
Do not write in this margin |
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