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Describe the structure and function of a ribosome. Formed of protein & rRNA free in cytoplasm or attached to ER. - Site of protein synthesis via translation: - large subunit: joins amino acids - small subunit: contains mRNA binding site
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(2 marks), U. marinum cells ingest bacteria and digest them in the cytoplasm. Describe the role of one named organelle in digesting these bacteria. (3 marks), Give two structures found in all prokaryotic cells and in all eukaryotic cells.
Summary notes and past exam questions by topic for AQA Biology AS and A-Level Topic 2 - Cells.
The basic subcellular structures of an eukaryotic cell as seen by transmission electron microscopy (TEM). Try to identify the cell borders and nuclei. Switch between the grayscale and color images (see above) to help identify the following structures: Plasma Membranes.
Apr 6, 2024 · In eukaryotic cells, the cytoplasm is the major component of the protoplasm and is located between the nucleus and the cell membrane. It includes all organelles. It regulates the cellular environment and preserves the shape of the cell. It stores the required substances and chemicals for the organelle.
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Oct 26, 2023 · Cytosol of the cytoplasm has numerous functions, some of which include signal transduction, transportation of metabolites and molecules across the cell, provision of structural support for the whole cell. Ready to test your knowledge? Take our quiz on the structures of the eukaryotic cell!