41. All algae and cells of higher plants carry out photosynthesis in ordered, membrane bound structures called chloroplasts with the exception of
42. The major photosynthetic pigments in plants are
43. Nutrient solutions are added to the solid culture by means of
44. During germination of seeds the activity of enzymes
45. Biochemical oxygen demand or BOD is a test of the amount of oxygen needed for bacteria to break down the organic matter in a water sample over a period of
46. Which of the following parts of abscisic acid is responsible for the occurrence of two enantiomorphic forms, (R)-abscisic acid and (S)-abscisic acid?
47. The first evidence that bacterial microorganisms can fix molecular nitrogen came from the work of
48. Atmospheric sulphur dioxide, soluble in water, is carried back to earth in rainwater as
49. The predator chain among different food chains include
50. Ascent of sap in plants takes place through
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- Plant Anatomy and Physiology - Section 10