Question

8 Multiple Choice Questions : 1. Put a tick mark ( against the correct alternative in the following statements : (a) In a germinating seed, the roots develop from: (i) Radicle (ii) Plumule (iii) Tegmen (iv) Hilum (b) In a germinating seed, the shoot develops from: (i) Radicle (ii) Plumule II II (iii) Tegmen (iv) Hilum (c) Which one of the following is a monocotyledonous seed ? (ii) Pea (i) Bean (iii) Maize (iv) Gram (d) If the cotyledons are pushed above the soil, then such type of germination is called : (i) Epigeal (ii) Hypogeal (iii) Perigeal (iv) Progeal (e) If the cotyledons remain under the soil, then such type of germination is called : (i) Epigeal (ii) Hypogeal (iii) Perigeal (iv) Progeal (f) Pollen is produced in the : (i) Filament (ii) Style 10 11 (iii) Pistil (iv) Anther 23 The Flowe​

Answer 1

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(a) In a germinating seed, the roots develop from : (i) Radicle

• Explanation : The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot.

(b) In a germinating seed, the shoot develops from : (ii) Plumule

• Explanation : The shoot or stem of a plant develops from that part of the seed embryo which is positively phototropic i.e., moves upwards in response to the light stimulus.

(c) Which of the following is a monocotyledonous seed? : (iii) Maize

• Explanation : Monocots will have only one seed leaf inside the seed coat. Examples of Monocot Seeds are : Rice, Wheat, Maize, Bamboo, Palm, Banana, Ginger, Onion, Garlic, (Lilies, Daffodils, Iris, Tulips) flowers are examples of Monocot seeds.

(d) If the cotyledons are pushed above the soil, then such type of germination is called : (i) Epigeal

• Explanation : Epigeal germination is a botanical term indicating that the germination of a plant takes place above the ground. An example of a plant with epigeal germination is the common bean.

(e) If the cotyledons remain under the soil, then such type of germination is called : (ii) Hypogeal

• Explanation : Hypogeal germination is a botanical term indicating that the germination of a plant takes place below the ground. An example of a plant with hypogeal germination is the pea.

(f) Pollen is produced in the : (iv) Anthers

• Flowering plants (ANGIOSPERMS) produce pollen in the anthers within the flower.