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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
Eukaryotic cell: Prokaryotic cell: Size: Most are 5 μm – 100...
- Plant and Animal Cells
GCSE; AQA Trilogy; Cell structure - AQA Plant and animal...
- Video
Cell structure - AQA Video. Organisms are made up of cells....
- Comparing Sizes
chloroplasts. Palisade cells are the major site of photosynthesis. They are well adapted for this function because: they are towards the tops of leaves for maximum light. they have lots of...
- 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.Oct 21, 2021 · Functions. Providing mechanical strength, support, and rigidity to the cell. Providing shape to the plant. Allowing selective entry of small molecules inside the cell while preventing large molecules. Protecting the delicate inner organelles from outer shock.
Plants capture light from the sun and use it to build up chemical stores of energy. This is called photosynthesis. The basic structure of a plant cell is shown below.
Jul 4, 2023 · A flower is a visually appealing, vibrant, and fragrant shoot dedicated to sexual reproduction in angiosperms. Flowers consist of four organ sets: Calyx, Corolla, Androecium, and Gynoecium. These captivating Parts of a Flower attract pollinators and serve as a source of nectar.
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Mar 7, 2024 · General method. Specimens must be prepared on a microscope slide to be observed under a light microscope. This must be done carefully to avoid damaging the biological specimen and the structures within it. Preparing a slide using a liquid specimen: Add a few drops of the sample to the slide using a pipette.
