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Sexual Reproduction in Flowering Plants Test - 43

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Sexual Reproduction in Flowering Plants Test - 43
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  • Question 1
    1 / -0
    Maize grain is
    Solution
    The pericarp of the maize is fused with the seed coat known caryopsis. The entire kernel is referred to as the seed.
    Therefore, the correct answer is option A.
  • Question 2
    1 / -0
    The groundnut seeds are
    Solution
    Geocarpy is a rare means of plant reproduction, in which plants produce diaspores within the soil. This occurs with subterranean flowers (protogeocarpy) or from aerial flowers, which penetrate the soil after flowering (hysterocarpy). It helps to achieve a suitable environment for the plant's offspring. For example, groundnuts.
    Therefore, the correct answer is option A.
  • Question 3
    1 / -0
    An example of a seed with endoperm, perisperm and caruncle is
    Solution
    Castor bean seeds contain an elaiosome (caruncle) which are fleshy structures that are attached to seeds of many plant species. They are rich in lipids and proteins that attract ants, which disperse the seed (myrmecochory). Castor bean seeds are endospermic which means, the endosperm is the major storage tissue. In perispermic seeds (castor), diploid maternal food storage tissue originates from the nucellus.
    Therefore, the correct answer is option D.
  • Question 4
    1 / -0
    In drupe of coconut, the mesocarp is
    Solution
    The fruit of the coconut is a large, dry drupe composed of a thin outer layer (exocarp), a thick, fibrous middle layer called as a mesocarp and a hard inner layer called as an endocarp that surrounds a large seed. 
    Thus, the correct answer is option B.
  • Question 5
    1 / -0

    The given figure represents Anacardium (cashew nut.) Which is the correct statement?

  • Question 6
    1 / -0
    Which of the following is a drupe?
    Solution
    A drupe (stone fruit) is an indehiscent fruit in which the exocarp (skin) and mesocarp (flesh) surrounds the hardened endocarp with a seed (kernel) inside, e.g., mango. 
    Thus, the correct answer is option B.
  • Question 7
    1 / -0
    Which statement is correct for compositae?
    Solution
    In compositae, the corolla is sympetalous with mostly 3-5 lobes. The androecium consists of 4 or 5 stamens that are united by their anthers and are adnate to the corolla tube or epigynous zone, alternating with the lobes. The gynoecium consists of a single compound pistil of 2 carpels and an inferior ovary with one locule and one basal ovule. 
  • Question 8
    1 / -0
    Epipetalous and syngenesious stamens occur in
    Solution
    The calyx is highly modified as hairs, bristles or scales on the ovary known as pappus. The corolla is sympetalous with mostly 3-5 lobes.
    The androecium consists of 4 or 5 stamens that are united by their anthers and are adnate to the corolla tube or epigynous zone and alternate with the lobes. The gynoecium consists of a single compound pistil of 2 carpels, a single 2-cleft style, and an inferior ovary with one locule and one basal ovule. During maturation of a flower, the style grows through the anther column.
    So, the correct answer is 'Asteraceae'
  • Question 9
    1 / -0
    Diadelphous stamens are the characteristic feature of
    Solution
    The Androecium in Fabaceae consists of 10 stamens in two groups i.e., they are diadelphous with 9 stamens in one bundle and the 10th stamen more or less distinct. The pistil is simple, comprising a single style and stigma and a superior ovary with one locule containing many marginal ovules. The fruit is usually a legume.
    So, the correct answer is 'Fabaceae'
  • Question 10
    1 / -0
    Fruit of coconut is 
    Solution

    Solution:

    Correct answer is option D
    Explanation for correct option:

    The fruit of the coconut is a large, dry drupe composed of a thin outer layer (exocarp), a thick, fibrous middle layer called a mesocarp and a hard inner layer called an endocarp that surrounds a large seed. 
    Thus, the correct answer is option D.

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