Question

Fruit is a characteristic feature of :
1) Angiosperms
2) Gymnosperms
3) Pteridoohytes
4) Bryophytes

Answer 1

Answer:

Angiosperms' primary features are fruit production and double fertilisation.

Explanation:

• The class of plants known as flowering plants, or angiosperms, are those that produce both flowers and fruits.
• The name "angiosperm," which refers to plants that generate their seeds inside of a fruit, is derived from the Greek words angeion and sperma.
• With around 300,000 species, they are the most numerous and diverse group within the kingdom Plantae.
• Approximately 80% of all known extant green plants are angiosperms.
• Wheat, corn, and other grains are examples of angiosperm.
• The wind performs the pollination process on these plants. Roses, lilies, broccoli, kale, petunias, eggplant, tomatoes, peppers, and sugarcane are more examples of angiosperms.

#SPJ3

Answer 2

Answer:

Fruit is the primary key characteristic feature of 2) Angiosperms.

Explanation:

• Angiosperms are a group of flowering plants characterized by the production of flowers, double fertilisation and the formation of seeds inside a fruit.  

• The name "angiosperm" is derived from the 2 Greek words "angeion: case" and "spermos: seeds".

• Approximately 80% of all known extant green plants represent flowering plants i.e. angiosperms.

• The post-fertilization changes in angiosperm result in the formation of fruits and seeds.

• It is found that out of two male gametes in the pollen tube, one male gamete fuses with the egg cell forming a zygote which develops into an embryo, and the latter undergoes a series of changes to form the seeds.
• Other male gamete fuses with the secondary nucleus of the embryo sac to form a triploid endosperm (3n). In the meantime, other parts of the ovary get transformed into fruit.

• The fruit provides necessary protection to the seed and helps in its dispersal from the mother plant to outside, where the seed can germinate to give rise to a new plant of its own kind.
• Since they are often colourful and possess a delectable odour, they help in attracting birds and other animals to eat seeds. This way the seeds get dispersed to other areas for generating new plants.

• Fertilisation leads to the development of an embryo inside the embryo sac of the ovule.

• Along with a series of changes in the embryo, the ovule is converted into the seed while the wall of the ovary and other parts of the flower connected to it change into a fruit.

• Thus, fruit is defined as ripened ovary. Its biological need is to protect the seeds by forming a case or vessel around them. It also assists in seed dispersal.

• Sometimes the fruits may be formed without fertilisation. This condition is called parthenocarpy and the fruit is known as parthenocarpic/seedless fruit.  

• Since 2) Gymnosperms are naked seeded plants with no fruit formation and 3) Pteridophytes 4) Bryophytes are cryptogams where no seed formation takes place.

Therefore, option 1) Angiosperms is the most appropriate correct answer.

#SPJ3