Question

difference between in gymnosperms and angiosperms

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Answer 1

Answer:

Comparison chart

Angiosperms versus Gymnosperms comparison chart

Angiosperms Gymnosperms

Definition Seed-producing flowering plants whose seeds are enclosed within an ovary. Seed-producing non-flowering plants whose seeds are unenclosed or “naked.”

Seeds Enclosed inside an ovary, usually in a fruit. Bare, not enclosed; found on scales, leaves or as cones.

Life Cycle Seasonal (die during autumn/fall). Evergreen

Tissue Triploid (endosperm produced during triple fusion) Haploid (endosperm produced before fertilization)

Reproductive system Present in flowers; can be unisexual or bisexual Cones; unisexual

Leaves Flat scalelike , needle-like

Cotyledons Present; single (monocots) or in a pair (dicots) Absent

Wood Hardwood Softwood

Periniality Non-perinnial Perinnial

Kingdom Plantae Plantae

Domain Eukarya Eukarya

Reproduction Mostly rely on animals. Mostly rely on wind.

Uses Medications , food, clothing, etc... Paper, Lumber , etc...

Answer 2

Answer:

1. In gymnosperms the reproductive structures are cones which are unisexual

2. The ovules are exposed, i.e., they are not located in the ovary.

3. After fertilization, the ovules develop into naked seeds.

4. The microspores and megaspores are produced by male and female cones

5. The pollen grains fall and germinate directly on the micropyle of the ovules

6. Fertilization is simple

7. Endosperm is haploid

8. In gymnosperms the pollination is by wind alone

9. In gymnosperms, generally the xylem contains only tracheids. Vessels are absent

10. The phloem has no companion cells

Angiosperms

1. In Angiosperms, the flowers are the reproductive organs and they may be both unisexual and bisexual.

2. The ovules are enclosed in the ovary.

3. After fertilization, the ovules develop into seeds inside the fruit.

4. The microspores are produced in anthers while the megaspores are produced in ovules of the ovary in flowers

5. The pollen grains fall on the stigma, germinate and the pollen tube carries the male gamete to the ovary

6. Fertilization is double

7. Endosperm is triploid

8. In angiosperms, different agents like wind, insects, bats etc are involved in pollination

9. Angiosperms vessels are always are present.

10. Companion cells are present