monday 2023 evening

 

 MULTIPLE CHOISE QUESTIONS: CIRCLE THE MOST CORRECT ANSWER                  50marks

 1. ….is flat and offers surface for trapping sunlight for photosynthesis:

   A. Stipules B. Leaf Blade C. Pedicel D. Petiole. E Hilum 

2. which of the following is correct about subsidiary cells....

  A. They contain chloroplast B. They are 3 to 5 cells that surround the Stoma C. They are 2 to 4 cells that surround the stoma D. Consist of a pair of bean- shaped cells surrounding the stoma E.also called epiblema                     

3. …Axis is shortened and bears flowers at its top which are having equal stalk and arranged in centripetal succession

  A. Raceme B. Spadix C. Head D. Corymb E. Umbel    

4. Which of the following is an examples of the medicinal plant with straight-walled epidermal cells

  A. Hyoscyamus B. Senna Leaves C. D.Starmonium D. A.Belladonna E. Talc     

5. A part of the stem which is responsible of the growth of shoot is ......

  A. Aril B. Lenticel C. Nodes D. Buds E. Hilum                          

6. …Covers outer surface of stem and usually functions to waterproof, protect & control gas exchange. ;

  A. The Ground Tissue B. Casparian Strips C. The Vascular Tissue D. The Dermal Tissue E. Pericycle   

7. Layers of cells between endodermis and vascular bundles in dicot stem is called……………?

  A. Stele B. Endodermis C. Pericycle D. Cortex E. Pith          

8. Which of the following is not correct about monocot cortex

  A. Consists of cells inner to the hypodermis B. Is distinguished into zones C. The cells contain reserve food material e.g. starch d. Contains the vascular bundles E. Carry out gaseous exchange function  

9. A classification of stomata with subsidiary cells which are arranged along the radii of a circle is called.

  A. Paracytic B. Diacytic  C. Anisocytic  D. Actinocytic E. Anomocytic            

10. Regarding vascular bundles of monocot stem

  A. Vascular bundles are wedge shaped B.Consist of xylem, phloem and cambium. C. Vascular bundles are scattered in the ground tissue D. The vascular bundles are conjoint, collateral, endarch and open E. The vascular bundle is conjoint, collateral, closed and exarch   

               

11. A leaf margin which is indented,but not to midline is called ………………

A. Entire B.  Crenate C. Serrate D. Lobate E. sinuate             

12. Consider the medulla of the dicot stem………………

A. Form new cells during secondary growth B. Consists of brick shaped and thin walled meristematic cells C. This layer gives mechanical strength to the plant D. It stores food E. It is composed of parenchyma cells without intercellular spaces                                                                           

13. which of the following is correct regarding of Palisade mesophyll…

A. its cells facilitate exchange of gases with the help of air spaces

B. Contain fewer chloroplasts than spongy mesophyll

C. Consists of vertically elongated cylindrical cells in one or more layers

D. Cells are loosely arranged with the chloroplasts close to the walls of the cell                              

E. The pores or stomata of the epidermis open into sub stomatal chambers, connecting to air spaces between the palisade layer cells

14. which of the following is not true concerning of the function of the stem?

A. used for vegetative reproductive i.e. cuttings B. position leaves to receive maximum sunlight C. Stores foods D. support (anchorage) the plant in the soil E. determine size and shape of the plant      

15. Epiblema of the monocot root is……………………

A. innermost layer of the root B. Single row of parenchyma cells, with intercellular space C. Stomata and cuticle are present D. Root hairs are always unicellular E. function is storage             

16. Which of the following is not correct regarding Vascular tissues of the leaf is ……………………….

A.  Veins are the vascular tissue of the leaf located in the spongy layer of the mesophyll

B. The reticulate (or net) venation typical of dicotyledons C. The parallel venation of the monocotyledons D. The xylem typically lies over the phloem E. In dicotyledonous leaves the main veins are open and usually collateral bicollateral (less commonly collateral), closed in monocot leaves                   

17. A Fibrovascular tissue formed by adhesion of funicle and testa is called…

A. Tegmen B. Hilum C. Micropyle D. Raphe E. Aril                                          

18.  Young bark tissue which May be composed of parenchyma or fibres, groups of fibres often occur opposite each group of phloem is called…….

A. medulla rays B. primary cortex C. epidermis D. pericycle E. endodermis          

19. If the xylem completely surrounds the phloem is called……

A. Radial B. Collateral C. Bicollateral D. Hadrocentric E. Leptocentric                    

20. When tip is deeply notched is called………….

A. acute B. acuminate C. ermaginate D. obtuse E. cuspidate    

          

21. hispid surface of the leaf has …………………

A. with long distinct hairs B. with rough hairs C. free from hairs D. dotted with oil glands E. hairy    

22. A plant structure which lies outside the cambium is called…………….

A. a leaf B. a stem C. a fruit D. a bark E.  a root        

23. Alternate arrangement of the leaf…..

A. When more than two leaves are present in a single node and are arranged in a circle

B. When two leaves are placed at the same node and are opposite to one another

C. When one pair of leaves is placed above the other exactly in the same plane                             

D.is characterized by the presence of one leaf at each node and all leaves together make a spiral path on the axis                                                       

E. is a circular arrangement of the leaves or of structures resembling leaves

24. The innermost layer of cortex  that forms a complete ring around the stele is called…….

A. pericycle B. pith C. casparian strips D. medulla E. endodermis                                       

25. A structure with suberin material is called……..         

A. pericycle B. pith C. casparian strips D. medulla E. endodermis   

26. Which structure of the flower forms the hypanthium if elongated below the calyx

  A. corolla B. Perianth C. Receptacle D. pollen E. carpel

27.   Which of the following structure is formed from sepals and petals together?

  A. calyx B. Receptacle C. Pistil D. corolla E. Perianth

28. Which of the following statement(s) is correct regarding to Pepos fresh fruits;

  A. have soft epicarp and freshy mesocarp and endocarp

  B. Barries with comparatively thick exocarp or rid

  C. Barries wiyh a thicker skin containing oil

  D. A freshy fruits with mature ovary and accessory structures

  E. are soft aggregate fruits

29. A freshy structures rich in lipids and proteins attached to the seed is......

  A. Aril B. embryo C. Elaiosome D. Funicle E. Hilum

30.. If stamens are fused is called...

  A. polypetalous B. gynophore C. monadelphous D. diadelphous E. pistil

31. A dry fruit in which the testa and pericarp are fused is called....

  A. Nuts B. Samara C. Follicles D. caryopsis E.Legumes

32. Which organ of the plant produce sex cells:

   A. seeds B. leaves C. flowers D. bark E. fruits

33. A flower pollinated by insects 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

34. 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                                                                                                                 

35. 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.                                                                             

 

36. 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

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

A.    Albuminous  B. Caruncle C. Embryo D. Tegmen   E. Exalbunious.                                                                                                    

38. A breathing pores of the stem is called…….

      A. Nodes B. internode C. buds D. lenticels E. leaf scar

40. Plants that bear unisexual and hermaphrodite flowers on the same plant is known as..

    A. dioecious plant B. monoecious plant C. polygamous plant D. corolla E..hypantium

41.Accessory structures of the fruits including the following except….

    A. sepals B. stamens C. receptacle D. ovules E. pedicel

42. A fresh fruit with mature ovary and accessory structures is called …

  A. pepos B. pome. C. drupes D. hesperidium E. berries

43. The following is the function of the leaf except

    A. photosynthesis B. gaseous exchange C. Protection D. as food E. guttation

44. The following is the characteristics of Tape roots………………….

   A. Mat of thin roots that spread out B. common in monocotyledonous plants

  C. Made up of many thread-like members of more or less equal length

  D. commonly occurs in grasses E. One large vertical root

45.  A n internal structure of root which is composed of single layer of barrel shaped parenchymatous cells

 A. epiblema B. cortex C. endodermis D. pericycle E. pith

46. The following is true concerning cortex of the root…..

  A. always unicellular B.  function o is protection of the inner tissues of the root C. possess leucoplasts

  D. forms a complete ring around the stele E. Single row of parenchyma cells, no intercellular space

47. If Receptacle forms below the ovary is called …………….

     A.  gynophore B. Gamosepalous C. Perianth D. hypanthium E. Monadelphous

48. which of the following is true regarding hypodermis of monocot stem…..

    A. Stomata may be present at irregular intervals B. consists of a few layers of collenchyma cells

    C. Rich in starch grains, hence “starch sheath” D. Consists of parenchyma cells E. Is made of few layer of sclerenchymatous cells

49. Valvate Capsule………………

  A. split through the centre of the fruit B. split along the septa C. the tip split open D. splits along locules

E. form pores to release seeds

50. The following is the examples of types of laef margins except

  A. Entire B. ciliate C. crenate D. lanceolate E. hirsute