biology mcqs
Morphology of Flowering Plants: MCQ Test
Test your comprehensive knowledge of the structural organisation of plants and animals, including morphology, anatomy, and physiological processes, based on NCERT Biology.
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Showing questions 41 - 60 of 128
41. In pea and bean flowers, the largest petal (standard) overlaps two lateral petals (wings), which in turn overlap two smallest anterior petals (keel). This type of aestivation is known as:
42. A sterile stamen is called a:
43. When stamens are attached to the petals, they are referred to as:
44. In citrus plants, the stamens are united into more than two bundles. This condition is termed:
45. Which part of the carpel is the receptive surface for pollen grains?
46. In lotus and rose, the carpels are free. This condition of carpel arrangement is known as:
47. After fertilization, what do the ovules develop into?
48. The arrangement of ovules within the ovary is known as:
49. In which type of placentation does the placenta form a ridge along the ventral suture of the ovary, with ovules borne in two rows, as seen in pea?
50. Which type of placentation is characterized by ovules developing on the inner wall of the ovary or on the peripheral part, with the ovary often becoming two-chambered due to a false septum, as in mustard and Argemone?
51. In Dianthus and Primrose, ovules are borne on a central axis and septa are absent. This type of placentation is called:
52. What is a fruit formed without fertilization of the ovary called?
53. In a fleshy fruit, the pericarp is differentiated into three layers. What are these layers from outermost to innermost?
54. Which of the following fruits are examples of a drupe?
55. In coconut, which part of the pericarp is fibrous?
56. A seed is made up of which two main components?
57. In a dicotyledonous seed, the outermost covering consists of two layers. What are they called?
58. What is the small pore located above the hilum on a dicotyledonous seed called?
59. Seeds such as bean, gram, and pea are characterized by the absence of endosperm in their mature form. What are these seeds called?
60. In monocotyledonous seeds like maize, what is the proteinous layer that separates the embryo from the bulky endosperm?