Question

SOLVE THE FOLLOWING:-
_____________________

1. Why is reproduction important?

2. Name one reproductive and one vegetative part of the plant

3. How does yeast reproduce?

4. Which plants reproduce by spore formation?

5. How is sexual reproduction different from asexual reproduction?

6. List the different kinds of asexual reproduction in plants, giving one example of each.

7. What is vegetative reproduction?

8. What is artificial propagation of plants? Name four methods of artificial propagation.

9. What does the process of fertilisation consist of?

10. When does a seed start germinating?​

Answer 1

Answer:

1. Reproduction is important because it ensures the survival of species of living organisms. Reproduction involves the replication of genetic information
2. These structures can be divided into two groups: sexual reproductive and vegetative. Vegetative parts (Figure 1) include roots, stems, shoot buds, and leaves; they are not directly involved in sexual reproduction. Vegetative parts often are used in asexual forms of reproduction such as cuttings, budding, or grafting
3. Yeasts reproduce asexually by a process called budding (see Figure 8.2. 1 and Figure 8.2. 6). A bud is formed on the outer surface of the parent cell as the nucleus divides.
4. Ferns, Mosses, etc reproduce by spore formation.
5. Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.
6. Organisms choose to reproduce asexually by different means. Some of the asexual methods are binary fission (e.g. Amoeba, bacteria), budding (e.g. Hydra), fragmentation (e.g. Planaria), spore formation (e.g. ferns) and vegetative propagation (e.g. Onion).
7. Vegetative reproduction is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or a specialized reproductive structure. Many plants naturally reproduce this way, but it can also be induced artificially.
8. A number of methods of artificial propagation of plants are used in agriculture (for raising crops), and horticulture (cultivation of vegetables, fruits and flowers). The three common methods for the artificial propagation of plants are: Cuttings, Layering, Grafting and tissue culture.
9. fertilization consist of the fusion o f the male and female germ cells. Human fertilization is the union of a human egg and sperm, usually occurring in the ampulla of the fallopian tube. The result of this union is the production of a zygote cell, or fertilized egg, initiating prenatal development
10. Seeds wait to germinate until three needs are met: water, correct temperature (warmth), and a good location (such as in soil). During its early stages of growth, the seedling relies upon the food supplies stored with it in the seed until it is large enough for its own leaves to begin making food through photosynthesis.

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