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May 17, 2023 · A plant cell is the basic building block of a plant. Plant cells, like all eukaryotic cells, contain a nucleus and other organelles, each with its distinct functions. However, plant cells also possess unique components that differentiate them from animal, fungal, and bacterial cells.
Revise. Video. Audio. Test. Plant cells. This basic structure of a plant cell is shown below – the same plant cell, as viewed with the light microscope, and with the transmission...
- Cell Wall. It is the outermost, protective layer of a plant cell having a thickness of 20-80 nm. Cell walls are made up of carbohydrates such as cellulose, hemicellulose, and pectin and a complex organic polymer called lignin.
- Plastids. They are double membrane-bound organelles that have their own genetic material. Plastids are mainly of three types: a) Chloroplasts: Found in the green parts of a plant and algae that contain the photosynthetic pigment, chlorophyll.
- Central Vacuole. It is the large vesicle that make up almost 30 to 80% of the total plant cell volume. The central vacuole is often the largest organelle in the cell that is filled with fluid, ions, enzymes, and other molecules.
- Cell Membrane or Plasma Membrane. It is a thin, biological membrane having a thickness of 7.5-10 nm that separates the interior of the cell from the outside environment.
Revise. Video. Audio. Test. Pages. Plant cells. This basic structure of a plant cell is shown below - the same plant cell, as viewed with the light microscope, and with a transmission...
Plant cells do not have cilia, which are short projections from the cell that function in movement, but the sperm cells of early diverging plants, like bryophytes and seedless vascular plants, have flagella. These are long projections that function in movement.
Detailed diagram of a plant cell, and information on the roles and function that the specific plant cell parts play.
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Revise types of plant and animal cells and how their structures enable them to carry out their roles, as well as how to observe them using microscopes.
