Biology
Difference between Angiosperms and Gymnosperms
The Basic difference between Angiosperms and Gymnosperms is that in Angiosperms double fertilization takes place, while in Gymnosperms single fertilization takes place.
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Difference between Angiosperms and Gymnosperms
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| Angiosperms | Gymnosperms
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| Seed develops inside the ovary which develops into a fruit. | Naked seed borne to megasporophyll. No fruit formation.
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| Endosperm formed after fertilization.
| Endosperm formed before pollination. It is actually a food containing female gametophyte. |
| Anther consists of 4 pollen sacs.
| Number of microsporangia borne on microsporophylls ranges from 2 to numerous cycas. |
| Flowers are bisexual.
| Cones are mostly unisexual. |
| Ovules are borne inside the ovary and covered.
| Ovules are exposed on megasporphylls. |
| Megasporophyll delicate.
| Megasporophyll woody. |
| Double fertlization takes place. | Single fertilization takes place.
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| Egg apparatus present in embryo sac.
| Female gametophyte contains archeogonia. |
| Ovules have a narrow microphyle.
| Ovules have a large microphyle. |
| Pollen grains display diverse forms.
| Pollen grains are winged. |