MARCH CAT 1

 

                 i.            Which of the following medicinal plant its species name is derived from author’s name?

A.    Cinchona Ledgeriana

B.     Artemisia cina Berg

C.     Myristica fragrans                                                                                      

D.    Glycyrrhiza

E.     Atropa belladonna 

               ii.            Which of the following method of adulteration Occurs when value or quality of the drug has been impaired?

A.    Admixture

B.     Substitution

C.     Sophistication with inferior varieties

D.    Addition of worthless heavy materials

E.     Deterioration

             iii.            Dry fruits which split along inner suture only is…...

A.    Cassia angustifolia 

B.     Seed coat as in maize

C.     Strophanthus

D.    Cashew nut

E.     Rice

             iv.            Which of the following statement is correct concerning collenchyma?

A.    They are precursor of other plant tissues

B.     Predominant found in roots

C.     They have dead cells

D.    Is of universal occurrence in all the soft parts of plants.

E.     Being flexible in nature

               v.            Which of the following structure is Made of barrel shaped cells arranged compactly without intercellular spaces ?

A.    Epidermis 

B.     Hypedermis

C.     Medulla rays

D.    Endodermis

E.     Pith

             vi.            A flower pollinated by mammals 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 medicinal plant is not require drying slowly at moderate temperature after collection?

A.    Digitalis

B.     vanilla pods

C.      gentian roots

D.    cocoa seeds

E.     ‘Orris Rhizome

         viii.            A structure that arises from the testa near the hilum is called ……..

A.    Elaiosome

B.     Caruncle

C.     Embryo

D.    Tegmen

E.     Micropyle

             ix.            If receptacle below the ovary it is the  ………..

A.    Polypetalous

B.     hypanthium

C.     Monadelphous

D.     gynophore

E.     Pistillate

               x.            Which of the following statement(s) regarding Cambium is correct...

A.    It is composed of parenchyma cells with intercellular spaces

B.     It consists of pericycle, vascular bundles and pith

C.     The innermost layer of the cortex is the endodermis

D.    Lies below the epidermis

E.     Consists of brick shaped and thin walled meristematic cells

 

 

 

 

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 letter

 

1.      Regarding Simple succulent fruits

A.    …………….. . A hard dry fruit with one seed which almost feels the pericarp but attached loosely

B.     ……………… It is a simple, dry fruit in which the testa and pericarp are fused

C.     ………………. split through the centre of the fruit

D.    ……………… Are soft aggregate fruits

E.     ……………… Berries with a comparatively thick exocarp or rind

2.      Tracheids

A.    ……………… Their end walls are transverse or oblique 

B.     ……………… are elongated, tube-like cells with hard, thick and lignified walls and large cell cavities

C.     ……………… are imperforate cells with bordered pits on end walls arranged one above the other

D.    ……………… Their ends are tapering, either rounded or chisel-like and less frequently, pointed

E.     ……………… In matured sieve tube, nucleus is absent

3.      Types of vascular bundles according to the arrangement of xylem and phloem

     A. ……………. Radial vascular bundle- when one kind of vascular tissue (xylem or phloem) is surrounded by the other is called as concentric vascular bundle.

     B. ……………… Concentric vascular bundle -when the xylem and phloem combine into one bundle

     C. ………………Bicollateral-when the xylem and phloem lie together on the same radius, the xylem being internal and the phloem external

     D. ………………leptocentric- when the phloem lies in the centre and is surrounded by xylem

     E. ……………… Hadrocentric- when  the xylem lies in the centre and is surrounded by phloem

 

 

4.      Which of the following statements is/are correct concerning of Dicot Cortex

   A. ……………… It lies above the epidermis

   B. ……………… the third zone made of barrel shaped cells arranged compactly without intercellular spaces

   C. ……………… The second zone rich in starch

   D. ……………… First zone consists of a single layer of parenchymatous rectangular cells

   E. ………………Some resin ducts occur in second zone

 

 

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

5.       

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.

COLUM A (MODIFIED STEM)	ANSWERS	COLUM B (EXAMPLES)
1. Runner		A.      Garlic B.      glycyrrhiza C.      strawberry D.     banana E.      opuntia F.       colchicum G.     aloe
2. Corm
3. Stolon
4. Offsets
5. Sucker

 

 

 

 

 

 

 

 

 

PART TWO: Match the sign of damages in column B with examples in column A by writing the letter of the correct answer in the space provided

 

COLUM A (plant organelles)	ANSWERS	COLUM B (functions)
1. Nucleolus		A.    Contains DNA (genetic material in chromosomes) B.     It packages and transports materials (proteins and carbohydrates) to different locations inside/outside cell C.      It transports materials through the cell and produces proteins D.    sites of protein synthesis E.     It controls many of the functions of the cell (by controlling protein synthesis) F.      forms and organizes microtubules G.    Storage site for variety of (ergastic) substances
2. Centrosome
3.Ribosomes
4.Golgi Complex
5.Endoplasmic Reticulum

 

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.

 

6.      With examples, give the differences between grafting and budding. (4 marks)

 

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7.      Give shortly information on the following tissues composed in young bark (5 marks)

a.       Epidermis

………………………………………………………………………………………………………………………………………………………………………………

b.      Primary cortex

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

c.       Endodermis

………………………………………………………………………………………………………………………………………………………………………………

 

d.      Pericycle

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

e.       Phloem

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

 

8.      Mention five drugs which obtained exclusively from cultivated medicinal plant. (5 marks)

              I.            …………………………………………………………………………………………….

           II.            ……………………………………………………………………………………………

        III.            ……………………………………………………………………………………………

        IV.            ……………………………………………………………………………………………

          V.            …………………………………………………………………………………………..

 

9.      Give four differences between pericycle and endodermis  (4marks)

                    I.            ……………………………………………………………………………………………………………………………………………………………………………………

                 II.            …………………………………………………………………………………………………………………………………………………………………………………..

              III.            ……………………………………………………………………………………………………………………………………………………………………………………

              IV.            …………………………………………………………………………………………

10.  List six medicinal plants which require Elevation during cultivation                    (6 marks)

 

…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………..

…………………………………………………………………………………………………………………………………………………………………………………………

 

11.  A. Shortly describe the zone of root (zone of cell division, elongation and maturation) (3 marks)

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

B. What do you understand by the following condition of xylem; endarch and exarch (2marks)

……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….

 

12.  Describe Plastids of plant cell organelles                                                              (5marks)

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

 

13.  A. Define fracture of the bark.                                                                                   (1 marks)

B. list five types of the fracture                                                                                 (5marks)

                                                                                                                            

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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

 

14.  With THREE main points explain why cultivation of medicinal plants improve quality of the drug, and Describe any TWO plant breeding                                                 (15 marks)

 

15.  With examples explain how the following Physicochemical factors and biological factors affecting storage of crude drugs                                                                             (15 marks)

 

light, moisture, temperature, air oxygen and microorganisms (e.g fungi or bacteria)