Question Bank No: 12

1. When a molecule of glucose is subjected to glycolysis the number of ATP gained is

 a)10
 b)2
 c)8
 d)4

2. Protoplasmic respiration occurs if the respirating substrates are

 a)Carbohydrates
 b)Fats
 c)Organic acids
 d)Proteins

3. If a segment of Bryophyllum is planted in soil it produces new plants. This is because its leaf has

 a)High con: of auxin and cytokinin
 b)High conc: of cytokinins
 c)Small embryos
 d)Buds

4. Conditions necessary for germination of seed are

 a)Moisture, oxygen and suitable temperature
 b)Suitable temperature, Oxygen and light
 c)Carbon dioxide, light and oxygen
 d)Soil moisture and suitable temperature

5. Thigmotropism is the response of the plant to

 a)Gravity
 b)Water
 c)light
 d)Contact

6. Klinostat is used for

 a)Measuring growth rate
 b)Exhibiting geotropism
 c)measuring phototropic curvature
 d)Measuring osmotic pressure

7. Sprouting of potato tubers can be prevented by

 a)IAA
 b)Maleic hydrazide
 c)Kinetin
 d)GA3

8. A plant is said to be etiolated when it

 a)has fewer leaves than normal
 b)Has abnormally long stem and is pale yellow
 c)Has leaves with white patches on them
 d)Is small and stunted with dark yellow leaves

9. The secondary roots in their growth are

 a)ageotropic
 b)Diageotropic
 c)plagiogeotropic
 d)Geotropic

10. The pigment associated with photoperiodism is

 a)Chlorophyll
 b)Carotene
 c)Phytochrome
 d)All the above

11. One of the chief physiological effect of GA3 is

 a)shortening of genetically tall plant
 b)Elongation of genetically dwarf plant
 c)Rooting in stem cuttings
 d)Yellowing of young leaves

12. Greater growth on the lower surface of bifacial structure is

 a)Photonasty
 b)Hyponasty
 c)Epinasty
 d)Nyctinasty

13. Delay in Senescence is causes due to

 a)Cytokinin
 b)Auxin
 c)Ethylene
 d)ABA

14. Apical dominance is caused by

 a)IAA
 b)GA3
 c)BAP
 d)Ethylene

15. Internodal clongation is triggered by

 a)Auxin
 b)GA3
 c)Cytikinin
 d)ABA

16. The instrument by which the rate of growth of stem can be measured

 a)Potometer
 b)Osmometer
 c)Auxamometer
 d)Hydrometer

17. Grass stem clongates by the activity of

 a)Primary meristem
 b)Secondary meristem
 c)Intercalary meristem
 d)Apical meristem

18. Potato breeding stallion in India is situated at

 a)Srinagar
 b)Shimla
 c)Mussorie
 d)Darjeeling

19. Isogamy is found in

 a)Oak
 b)Ulothrix
 c)Moss
 d)Cycas

20. Topetum is found in

 a)Endosperm
 b)Anther
 c)Embryosac
 d)Embryo

21. Syngamy means

 a)Fusion of gametes
 b)Fusion of cytoplasm
 c)Fusion of two similar spores
 d)Fusion of dissimilar spores

22. Cleistogamous flowers are found in

 a)Ficus bengalensis
 b)Ixora cocainea
 c)Calotropis Procera
 d)Commelina Bengalensis

23. Pollinia are found in

 a)Calotropis
 b)Rose
 c)Hibiscus
 d)Xanthium

24. U-bisch bodies are associated with the formation of

 a)embryosac
 b)Embryo
 c)Endosperm
 d)Pollen grains

25. A close association between flower and pollinating agent is found in

 a)yucca
 b)cocos
 c)Salvia
 d)Arena

26. Entomophily is pollination though

 a)Water
 b)Insects
 c)Snail
 d)Air

27. 256 microspores shall be formed by meiosis of

 a)512 microspore mother cells
 b)256 microspore mother cells
 c)64 microspore mother cells
 d)128 microspore mother cells

28. Entomophilous flowers poses

 a)Large number of pollen
 b)Brightly coloured pollen
 c)Dry smooth pollen
 d) Sticky and rough pollen

29. Translator mechanism occurs in

 a)Brassica
 b)Calotropis
 c)Yucca
 d)Ocimum

30. Stigmas are large and sticky in case of

 a)Anemophilous Flowers
 b)Hydeophylous flowers
 c)Malacophilouis flowers
 d)Entomophilous flowers

31. Mango and guava are propagated through

 a)Tissue culture
 b)Grafting
 c)Stem cutting
 d)Layering

32. A sexually produced organism inheriting all the character of the parent is

 a)Offspring
 b)Clone
 c)Variety
 d)Hybrid

33. A pieces of potato tubes will form a new plant if it has

 a)Branches
 b)Stored food
 c)Roots
 d)Scales / Eyes

34. A quicker regeneration of grass leaves shall occur by

 a)Cutting
 b)Grazing
 c)Irrigation
 d)Clipping

35. Parthenogenesis is common in

 a)Litchi
 b)Grape
 c)Apple
 d)Mango

36. Scion is the term used in relation to

 a)Embryology
 b)Grafting
 c)Agamospermy
 d)emasculation

37. Stem cutting is employed in the propagation of

 a)Banana
 b)Mango
 c)Sugarcane
 d)Cotton

38. Which one is propagated by cuttings?

 a)Bougainvillea
 b)Tea
 c)Sansevaria
 d)All the above

39. Banana is multiplied by means of

 a)Seeds
 b)Leaf Cutting
 c)Sucker
 d)Offset

40. Which root will form a new plant?

 a)Poplar
 b)Dahlia
 c)Azadiracta
 d)Both A & B

41. Vegetative propagation through budding occurs in

 a)Rose
 b)Agave
 c)Mango
 d)Ginger

42. Union of two gametes of one sex is known as

 a)Apogamy
 b)Partheno apogamy
 c)Parthenogamy
 d)Parthenogenesis

43. Adventive polyembroyony occurs in

 a)Poa
 b)Brassica
 c)Allium
 d)Citrus

44. Free nuclear division occurs in

 a)Flowers
 b)Ciametes
 c)Endosperm
 d)Fruit

45. In capsella embryosac is

 a)Haploid
 b)Diploid
 c)Triploid
 d)Polyploid

46. Which is the part of female reproductibe system

 a)Embryosac
 b)Anther
 c)Stamen
 d)microspore

47. Synergid is connected to

 a)Antipodal cell
 b)edosperm
 c)Ovary
 d)Egg Cell

48. Polar nuclei are located in

 a)pollen tube
 b)embryosac
 c)Ovule
 d)Thalamus

49. No of chromosomes in root cell is 14, what will be the number of synergid

 a)14
 b)21
 c)7
 d)28

50. Porogamy is the entry of ollen tube through

 a)Chalaza
 b)Funicle
 c)micropyle
 d)embryology