1Write the difference between the plumule and the radicle.
2A seed starts to sprout when it is soaked. Give the reason.
3A seed keeps a plant's line going. Give the reason.
4What is seed dormancy? How does it benefit the seed?
5Describe the process of seed germination briefly, with a diagram.
6Explain the role air plays in the germination of a seed.
7State the importance of seed germination.
8Suryanarayan ploughed and levelled his field well with a tractor to plant wheat. He dug every corner of the field and added compost manure. The next day he sowed wheat seed and ploughed again. Some days later he went to look at the field. The wheat had come up well in the damp part, but in the cloddy dry part it had not come up everywhere. (a) Why did Suryanarayan plough again after sowing the wheat? (b) What were the reasons the wheat did not come up well in the dry part? (c) What should be done so that the wheat comes up evenly and well all over the field?
9"Eating a vegetable dish made from germinated seeds is more beneficial than cooking and eating dry seeds." Make this statement clear, giving reasons.
10Why do seeds that fall on the floor of a dense forest fail to germinate for many years?
11Why do farmers store seed in a dry place and then soak it in water before sowing?
12What is the work of the coleoptile during the germination of a monocot seed?