Sample Paper Botany BHU Medical Entrance Exam

Sample papers




1. In Funaria stomata are present on the:

(a) stem                 (b) lower part of capsule (apophysis)

(c) leaf                     (d) upper part of capsule (operculum)

2. DNA synthesis can be measured by estimating in corporation of radio labeled:

(a) ribose sugar         (b) uracil           (c) thymidine         (d) adenine

3. Essential oils are those which :

(a) function as lubricants                    (b) yield perfumes

(c) are essential for human beings        (d) are essential for plants

4. Name the stage of mitosis in which chromosomes are arranged on the equator of spindle:

(a) Metaphase        (b) Anaphase          (c) Telophase             (d) Prophase

5. Ribosomes are made up of …… and the centre of:

(a) RNA and DNA – Fat synthesis

(b) DNA and protein – Respiration

(c) RNA and protein – protein synthesis
(d) DNA alone – photosynthesis

6. A non – renewable resource is :

(a) forest               (b) wild – life               (c) coal/petroleum           (d) water

7. Parachute mechanism of fruit dispersal as fund in Compositae is due to structure named:

(a) bract               (b) barbs                (c) pappus                         (d) coma

8. Endomitosis is:

(a) mitosis without nucleus                       (b) mitosis in uterine wall

(c) frequent mitosis                                     (d) mitosis within nucleus

9. Sound becomes hazardous noise pollution at level:

(a) above 100dB                                        (b) above 80 dB

(c) above 30 dB                                           (d) above 120 dB

10. Nagkesar is got from flowers of –

(a) Crocus sativus                                         (b) Viola odorata

(c) Centella asiatica                                      (d) Mesua ferrea

11. A bacterium with flagella all around is:

(a) peritrichous                                               (b) lophotrichous

(c) amphitrichous                                             (c) cephalotrichous

12. Edible part in fruit of coconut is:

(a) embryo                                                      (b) pericarp

(c) entire seed                                                  (d) mesocarp

13. Chromosomes present in prolonged prophase in the salivary glands of Drosophila are:

(a) B – chromosome                                    (b) Lampbrush

(c) Polytene                                                   (d) Supernumerary chromosomes

14. Polyarch and exarch condition is found in:

(a) monocot stem                                             (b) monocot root

(c) dicot stem                                                  (d) dicot root

15. Which theory explains ATP synthesis in chloroplasts and mitochondria ?

(a) Lock and key theory of Fischer                        (b) Lipmann and Lohmann theory

(c) Induced fit theory of Koshland                         (d) Chemi – osmotic theory of Mitchell

16. A system of classification that is based on evolution order and ancestory is known as :

(a) homologous system                                          (b) natural system

(c) phylogenetic system                                           (d) analogous system

17. First geneticist/father of genetics was:

(a) Darwin              (b) Mendel                    (c) Morgan                 (d) de – Vries

18. X – ray induced mutations were introduced in maize for the first time by:

(a) Singleton            (b) Stadler                  (c) Muller                     (d) Morgan

19. Who said that “transpiration is necessary evil’?

(a) Steward            (b) Curtis               (c) Anderson                (d) Bose

20. Insecticide generally attack:

(a) circulatory       (b) muscular system      (c) respiratory system   (d) nervous system

21. White spongy floating roots occur in/

(a) Nymphaea       (b) Trapa                 (c) Eichhornea             (d) Jussiaea

22. Filiform apparatus occurs in:

(a) synergids          (b) egg nucleus      (c) secondary nucleus         (d) amtipodals

23. Self pollination is prevented by:

(a) self sterility              (b) dichogamy   (c) herkogamy                 (d) all of these

24. Enzyme catalyzing rearrangement of atomic groupings without altering molecular weight or number of atoms is:

(a) ligase                     (b) hydrolase        (c) oxidoreductase           (d) isomerase

25. Guttation is the process of elimination of wetter from plants through:

(a) stomata                   (b) hydathodes      (c) wounds                        (d) lenticels

26. Active site of an enzyme is formed of:

(a) amino group of some amino acids        (b) R – group of selected amino acids

(c) – HS bonds of amino acids                    (d) carboxyl groups of some amino acids

27. Corm is:

(a) horizontal underground stem

(b) spherical above ground branched stem

(c) Unbranched spherical, Vertical underground stem

(d) spherical above ground branched stem

28. Hormone responsible for plant and seed dormancy during drought is:

(a) NAA                   (b) Zeatin               (c) ABA                   (d) IBA

29. Maximum quantity of humus occurs in:

(a) same everywhere                                         (b) uppper layer of soil

(c) lowermost layer                                            (d) middle layer of soil

30. Phytotron is a device by which :

(a) mutation are produced in plant                     (b) protons are libeated

(c) plants are grown in controlled environment      (d) electrons are bombarded

31. Which one is living fossil ?

(a) Pinus                 (b) Metasequoia               (c) Cycas            (d) Selaginella

32. The largest leaf belongs to:

(a) Victoria              (b) Rafflesia                     (c) Tobaco         (d) Nerium

33. ATP formation during photosynthesis is:

(a) oxidative phosphorylation                        (b) phosphorylation

(c) photophosphorylation                                  (d) none of these

34. Rhynia belongs to:

(a) Permian               (b) Silurian             (c) Carboniferous          (d) Devonian

35. Chief feature of family Brassicaceae/Cruciferae is presence of:

(a) myrosin enzyme (b) pectin                  (c) latex                        (d) alkaloids

35. Pyrimidine base present in RNA in place of thymine of DNA is:

(a) cytosine              (b) guanine                  (c) adenine                (e) uracil

36. When fungi feed on the dead organic matter, they are called:

(a) dimorphic          (b) lithophytes                 (c) saprophytes          (d) parasites

37. Cell wall of Spirogyra / green algae has:

(a) suberin               (b) chitin                          (c) lignin                     (d) cellulose

38. Number of ATP molecules which can be built on complete oxidation of pyruvic acid acid.

(a)30                     (b) 15                                   (c) 2                            (d) 6

39. Exchange of gases in old stems take place from:

(a) lenticels          (b) hydathodes                     (c) passage cells         (d) stomata

40. Tracheids deffer from vessels in having :

(a) continuous lumina due to end wall perforations

(b) discontinuous lumina to presence of end walls

(c) sclariform thickening

(d) no bordered pits

41. Name the family having (9 + 1) arrangement of stamens:

(a)  Fabaceae           (b) Astrrceae                  (c) Liliaceae                  (d) Solanaceae

42. Neck canal cells in Dryopteris are:

(a) two                (b) one with two nuclei         (c) four         (d) one with one nucleus

43. Which receives the maximum energy?

(a) Producer           (b) Decomposers    (c) Primary consumer       (d) Secondary consumer

44. Which of the following is not an essential micronutrient?

(a) Vanadium          (b) Boron               (c) Manganese                   (d) Molybdenum

45. Gymnosperms do not have:

(a) xylem vessels and sieve tubes                                        (b) vessels, and companion cell

(c) tracheids and companion cell                                            (d) tracheids and sieve tubes

46. In Asteraceae/Sunflower, the fruit is:

(a) berry                    (b) cypsella                (c) carcerrulus                 (d)   drupe

47. Leading sugarcane producing country, other than India, is:

(a) USA                     (b) China                 (c) Cuba                           (d) Brazil

48. Non – conventional source of energy is:

(a) coal                           (b) biogas/solar energy              (c) wood       (d) petroleum

49. Calyx is modified into wings in:

(a) Acer                           (b) Hopea                                   (c) Shorea         (d) Dioscorea

50. Minerals absorbed by roots move to the leaf through:

(a) phloem                    (b) xylem       (c) sieve   tubes            (d) none of these

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