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 another species is added to the medicinally valuable drug; intentional or accidentally?

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.            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 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 plant shows mutual dependant organisms (beneficial) symbiosis?

A.    Digitalis

B.     Ocimum basilicum

C.     Belladonna and mustard

D.    Urtica dioica

E.     Nicotiana

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

A.    Elaiosome

B.     Caruncle

C.     Embryo

D.    Tegmen

E.     Micropyle

             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 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.      Characteristics features of Ground or Fundamental Tissue System

A.    …………….. In monocot stem, ground tissue system is a continuous mass of sclerenchymatous tissue in which vascular bundles are found scattered

B.     ……………… These cells are arranged in a single layer with intercellular spaces

C.     ………………. Form the main body of the plants (bulk of plant)

D.    ……………… Includes all the tissues except epidermis and vascular bundles

E.     ……………… In the leaves, ground tissue is made of chlorenchyma tissues forming the mesophyll

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 (COMMECIAL BARKS)	ANSWERS	COLUM B (MEDICIAL PLANT)
1. Flat		A.      Cascara B.      Kurch C.      Cinnamon D.     Wild cherry E.      Quillaria F.       Frangula G.     Cassia
2. Channeled
3. Double quill
4. Single quill
5. Compound quill

 

 

 

 

 

 

 

 

 

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 (ORANIZED DRUGS)	ANSWERS	COLUM B (EXAMPLES)
1.Leaf		A.    Opium B.     Cinchona C.     Eucalyptus D.    Tragacenth E.     Anise F.      Chamomile G.    Colchicum
2.Flower
3.  Fruit
4.Seed
5. Bark

 

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.      List four types of Multicellular branched trichomes. (4 marks)

              I.            .............................................................................................................................................

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

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

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

7.      What do you understand by the following main inflorescences. (6 marks)

a.       Raceme (or racemose)

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

b.      Spadix

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

c.       Spike

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

 

 

d.      Corymb

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

e.       Umbel

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

f.        Capitulum or Head:

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

8.      Outline five (5) general conditions and techniques when drying Fruits and Seeds. (5 marks)

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

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

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

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

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

 

9.      With three (3) points describe Taxonomic classification of medicinal plant. (3marks)

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

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

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

10.  Give shortly explanation on the following ways on how adulteration occurs. (6 marks)

Fault of collection

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

 Improper preparation

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

 Improper storage

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

11.  Give three (3) differences between meristematic tissues and permanent tissues. (6 marks)

Meristematic tissue	Permanent tissue

 

 

12.  Mention four special additives containing in water (H₂O) and aqueous solutions. (4marks)

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

 

13.  With three examples, describe how temperature affects plant chemical reaction rates. (6 marks)

                                                                                                                           

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

 

 

 

 

 

 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.  Explain the following components of phloem. (15 marks)

 Sieve elements (five points), Companion cells (four point), phloem parenchyma (three points), phloem fibres (three points)

15.  Explain classification of the leaf based on the following. (15 marks)

Leaf margins (five types)

Leaf Apex (five types)

Leaf surface (five types)