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- Kingdom Plantae includes all the plants. They are eukaryotic, multicellular and autotrophic organisms. The plant cell contains a rigid cell wall. Plants have chloroplast and chlorophyll pigment, which is required for photosynthesis.
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Kingdom: Animalia: Cells have nuclei and no cell wall. Phylum: Chordata: Have backbones. Class: Mammalia: Have hair and produce milk for young. Order: Primates: Have flat faces, forward facing...
Plants possess cell walls containing cellulose. Most plants reproduce sexually, but they also have diverse methods of asexual reproduction. Plants exhibit indeterminate growth, meaning they do not have a final body form, but continue to grow body mass until they die.
The five kingdoms are animals, plants, fungi, protist and prokaryotes. Domain - The three domain system of classification organises organisms into three large groups: Bacteria, Archaea and Eukaryota. Phenotype - the physical characteristics of an organism.
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- Thallophyta
- Bryophyta
- Pteridophyta
- Gymnosperms
- Angiosperms
A plant kingdom is further classified into subgroups. Classification is based on the following criteria: 1. Plant body: Presence or absence of a well-differentiated plant body. E.g. Root, Stem and Leaves. 2. Vascular system: Presence or absence of a vascular system for the transportation of water and other substances. E.g. Phloem and Xylem. 3. Seed...
Thallophytes lack a well-differentiated body structure and the plant body is thallus like. Thallophyta includes plants with primitive and simple body structures. The plant body is thallus, they may be filamentous, colonial, branched or unbranched. Examples include green algae, red algae and brown algae. Common examples are Volvox, Fucus, Spirogyra,...
Bryophytes do not have vascular tissues. The plant body has root-like, stem-like and leaf-like structures. Bryophytes are terrestrial plants but are known as “amphibians of the plant kingdom” as they require water for sexual reproduction. They are present in moist and shady places. Bryophyta includes mosses, hornworts and liverworts. Some of the co...
Pteridophytes have a well-differentiated plant body into root, stem and leaves. They have a vascular system for the conduction of water and other substances. Some of the common examples are Selaginella, Equisetum, Pteris, etc. More Details: Pteridophyta
Gymnosperms have a well-differentiated plant body and vascular tissues. They bear naked seeds, i.e. seeds are not enclosed within a fruit. Some of the common examples of gymnosperms are Cycas, Pinus, Ephedra, etc.
Angiosperms are seed-bearing vascular plants with a well-differentiated plant body. The seeds of angiosperms are enclosed within the fruits. Angiosperms are widely distributed and vary greatly in size, e.g. Wolffia is small measuring about 0.1 cm and Eucalyptus trees are around 100 m tall. Angiosperms are further divided into monocotyledons and dic...
Mosses, ferns, conifers, and flowering plants are all members of the plant kingdom. The plant kingdom contains mostly photosynthetic organisms; a few parasitic forms have lost the ability to photosynthesize. The process of photosynthesis uses chlorophyll, which is located in organelles called chloroplasts.
Oct 24, 2024 · Cell theory, fundamental scientific theory of biology according to which cells are held to be the basic units of all living tissues. First proposed by German scientists Theodor Schwann and Matthias Jakob Schleiden in 1838, the theory that all plants and animals are made up of cells marked a great.
Apr 7, 2024 · Plants and the Cell Theory: An Inextricable Bond Hooke’s initial observations of cork cells paved the way for the realization that the entirety of the plant kingdom is cellular in nature. The cell theory, with its assertion that all living organisms are composed of cells, finds robust validation in plant biology.
