Sunday, 10 November 2013

Ch-12 One-mark Questions 21 to 42

Science-Chap-12

Chapter-12

Reproduction in Plants

Sr NO.QuestionAnswer
21.Fungi on a bread piece grow from ____ which are present in the air. Spores.
22.The spores are _____ reproductive bodies. Asexual.
23.Give name of two plants which reproduce by means of Spores? Moss and Ferns.
24. The ________ are the reproductive plant parts of a plant? Flowers.
25. The ______ are the male reproductive part of a flower. Stamens.
26.The ____ is the female reproductive part of a flower. Pistil.
27.Anther contains __________ which produce male gametes. Pollen grains.
28.Anther contains Pollen grains which produce ______. Male gametes.
29. Main parts of a pistel are: Stigma, pistil and ovary.
30. The ovary contains one or more____. Ovules.
31. The ______ or the egg is formed in an ovule. Female gamete.
32.The cell which results after ____ of the gametes is called a zygote. Fusion.
33.The cell which results after fusion of the gametes is called a______. Zygote.
34. The zygote develops into an______. Embryo.
35. After fertilisation, the _____ grows into a fruit and other parts of the flower fall off. Ovary.
36.The fruit is the _____ ovary. Ripened.
37.The seeds develop from the _____. Ovules.
38.The seed contains an _____ enclosed in a protective seed coat. Embryo.
39.Give three examples of fleshy fruits. Mango, Apple and Orange.
40. Give two examples of hard fruits. Almonds and walnuts.
41.Seeds and fruits of plants are carried away by______, ______, _________. Wind, water and animals.
42.Give names of plants which disburse its seeds via sudden jerk of fruits. Castor and balsam.

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