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- Filament: The filament is a stalk that holds up the anther, making the pollen accessible to pollinators or wind.
sciencenotes.org/parts-of-a-flower-diagram-and-functions/Parts of a Flower - Diagram and Functions - Science Notes and ...
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How are cells structured? Learn about the size and function of plant and animal cells for GCSE Combined Science, AQA.
- Comparing Sizes
GCSE; AQA Trilogy; Cell structure - AQA Comparing sizes....
- Eukaryotes and Prokaryotes
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Cell structure - AQA Plant and animal cells. Organisms are...
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- Comparing Sizes
- Parts of The Flower and Their Functions
- The Function of A Flower
- Pollination Processes
- References
Flowers have two primary parts: the vegetative part, which includes the petals and the sepals, and the reproductive part, encompassing the stamen (male reproductive organ) and the pistil or carpal (female reproductive organ).
The primary function of a flower is reproduction, ensuring the survival of the species. Through the process of pollination and fertilization, flowers produce seeds. Each seed contains a new plant, waiting for the right conditions to grow.
Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. This process can occur through self-pollination or cross-pollination: 1. Self-pollination: This occurs when the pollen from an anther deposits onto the stigma of the same flower or another flower on the same plant. Self-pollination is common ...
Ackerman, J. D. (2000). “Abiotic pollen and pollination: Ecological, functional, and evolutionary perspectives”. Plant Systematics and Evolution. 222 (1): 167–185. doi:10.1007/BF00984101De Craene, Ronse; P., Louis (2010). Floral Diagrams. Cambridge: Cambridge University Press. ISBN 978-0-511-80671-1. doi:10.1017/cbo9780511806711Esau, Katherine (1965). Plant Anatomy(2nd ed.). New York: John Wiley & Sons. ISBN 978-0-471-24455-4.Mauseth, James D. (2016). Botany: An Introduction to Plant Biology(6th ed.). Jones & Bartlett Learning. ISBN 978-1-284-07753-7.- 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.
The basic structure of a plant cell is shown below. Photosynthesis relies on many structures in the cell all working together, each playing its role. The diagram below shows the same plant...
Key learning points. The plant cell model describes the common structures of plant cells. Some of these structures are common with animal cells, such as the cytoplasm, cell membrane, nucleus and mitochondria. Plant cells have additional structures, i.e. the cell wall, chloroplasts and vacuole; each has a specific function.
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 electron microscope. A...
Mar 8, 2024 · A plant cell is the fundamental, structural, and functional unit of plants. It is a eukaryotic cell, meaning it has a true nucleus enclosed within a membrane. Plant cells are distinct from animal cells and other eukaryotic cells in several ways.
