6. Where does fertilization occur and what structure becomes a seed in pine tree

Question

6. Where does fertilization occur and what structure becomes a seed in pine trees? 7. Explain double fertilization 8. Name the structures that precede the ones listed in the life cycle of a seed plant. a. Female gametophyte b.Male gametophyte c.Adult sporophyte 9. What are the three parts of a seed in angiosperm 10. Compare conifers to flowering plants by completing the following table: Vascular Dispersal Fruit Generation Tissue of (Present or Present or Offspring Absent) Absent) Conifer Flowering plant 11.Compare the location of the ovule in the pine and the flowering plant. 12. What is the difference between pollination and fertilization?

Explanation / Answer

Sinc eyou have posted multiple long answer questions, I am going to answer first two. I hope it help. Thanks

1. Pine tree is a conifer. The Pollen grains are produced by the male cone. A grain of pine pollen contains all the genetic information from the pine tree on which it hangs. The grain of pollen finds its way to a receptive female cone, which acts as the female reproductive organ in pine plant. Once the pollen lands on the cone, it grows a long thin tube into the center of the cone where the egg is located. There, the genetic information in the pollen grain is combined with the genetic information in the egg, and a fertilized embryo results.The embryo in the pine plant grows into a seed and the cone becomes brown and develops scales.

2. Double fertilization is defined as the process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm. The process of double fertilisation is listed below:

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