Kingdom Plantae

What is the kingdom plantae

The kingdom plantae, kingdom of plants or metaphytes, is the group of multicellular organisms, without means of displacement and autotrophs, that is, they produce their own food.

The science that studies plants is botany and the classification of plant groups is diverse. There are still organisms whose classification is disputed, such as algae, of which many authors consider that only the green ones belong to the plantae kingdom.

See also Botany.

Characteristics of the plant kingdom

The plants of the plantae kingdom have the following characteristics that define them as such:

  • They are multicellular: they are complex organisms composed of two or more cells, organized into tissues and these into organs.
  • They are eukaryotes: their cells have a defined nucleus and cellulose cell wall.
  • They are autotrophs: they are capable of producing their own food through inorganic matter. By having chlorophyll in their cells, they manage to capture light energy from the sun and use it for photosynthesis.
  • They are aerobic: they do cellular respiration, breathing in oxygen and expelling carbon dioxide.
  • They are immobile: they cannot move.

See also Photosynthesis.

Classification of the plantae kingdom

The kingdom plantae, also known as metaphytes, is characterized by being terrestrial plants within the embryophyte group (presence of the protected embryo). Plants feed on organic matter in the soil and are divided into vascular and non-vascular.

The non vascular plants They are classified in the group of bryophytes, which lack vascular tissue and are not divided into root, stem, and leaves. They reproduce by sexual spores and prefer humid climates. Some examples of this type of plants are mosses and ferns.

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The vascular plants They are characterized by developing root, stem, leaf and vascular tissue. The latter transports water and nutrients. They are usually classified in the group of tracheophytes or cormophytes, which are divided into spermatophytes (they produce seeds) and pteridophytes (they do not produce seeds).

See also Plant cell.

spermatophytes

Spermatophytes are seed-producing plants and comprise much of the dominant flora. Its best known groups are:

  • gymnosperms, which are woody in appearance, are pollinated by the wind and have an ovule. Examples are pines and cypresses.
  • angiosperms, constitute the most diverse group of the plantae kingdom and have seeds, flowers and fruits. The ovule is protected by the fruit, which may contain the seeds. Use insects as a means of pollination.

pteridophytes

Pteriodophytes are seedless plants composed of roots, stems, and leaves. They are autotrophic, photosynthetic, multicellular and have no ability to move. Examples of this group are ferns.

plant and animal kingdom

The plantae and animal kingdoms were the first two kingdoms defined in the classification of living things. The philosopher Aristotle in 350 BC, defined these two great groups according to the similarities and differences in structure and appearance. One of the criteria used was the blood type divided into enaima, those with red blood, and anaima, those without red blood.

see also

  • kingdoms of nature
  • Kingdom.
  • Animal and plant cell.
  • Kingdom Monera
  • Animal Kingdom
  • fungi kingdom
  • protist kingdom