AP Biology - A Tour of the Cell
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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show | An optical instrument with lenses that refract (bend) visible light to magnify images of specimens.
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organelle | show 🗑
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show | A microscope that uses magnets to focus an electron beam on or through a specimen, resulting in resolving power a thousandfold greater than that of a light microscope
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show | The disruption of a cell and separation of its parts by centrifugation.
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cytosol | show 🗑
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eukaryotic cell | show 🗑
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show | A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles. Organisms with prokaryotic cells (bacteria and archaea) are called prokaryotes.
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nucleus | show 🗑
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show | The double membrane in a eukaryotic cell that encloses the nucleus, separating it from the cytoplasm.
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show | A netlike array of protein filaments lining the inner surface of the nuclear envelope; it helps maintain the shape of the nucleus.
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chromosome | show 🗑
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show | A specialized structure in the nucleus, consisting of chromatin regions containing ribosomal RNA genes along with ribosomal proteins imported from the cytoplasmic site of rRNA synthesis and ribosomal subunit assembly.
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show | A sac made of membrane in the cytoplasm.
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endoplasmic reticulum | show 🗑
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smooth ER | show 🗑
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show | That portion of the endoplasmic reticulum studded with ribosomes.
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show | A protein with one or more carbohydrates covalently attached to it.
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show | An organelle in eukaryotic cells consisting of stacks of flat membranous sacs that modify, store, and route products of the endoplasmic reticulum and synthesize some products, notable non-cellulose carbohydrates.
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show | A type of endocytosis in which large particulate substances are taken up by a cell. It is carried out by some protists and by certain immune cells of animals (in mammals, mainly macrophages, neutrophils, and dendritic cells).
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contractile vacuole | show 🗑
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mitochondrion | show 🗑
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show | An organelle containing enzymes that transfer hydrogen (H2) from various substrates to (O2), producing and then degrading hydrogen peroxide (H2O2).
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thylakoid | show 🗑
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show | A stack of membrane-bounded thylakoids in the chloroplast. Grana function in the light reactions of photosynthesis.
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show | A network of microtubules, microfilaments, and intermediate filaments that branch throughout the cytoplasm and serve a variety of mechanical, transport, and signaling functions.
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centrosome | show 🗑
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flagellum | show 🗑
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cilium | show 🗑
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show | A cable composed of actin proteins in the cytoplasm of almost every eukaryotic cell, making up almost every eukaryotic cell, making up part of the cytoskeleton and action alone or with myosin to cause cell contraction; also known as an actin filament.
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show | The outer region of cytoplasm in a eukaryotic cell, lying just under the plasma membrane, that has a more gel-like consistency than the inner regions, due to the presence of multiple microfilaments.
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myosin | show 🗑
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cytoplasmic streaming | show 🗑
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show | A component of the cytoskeleton that includes filaments intermediate in size between microtubules and microfilaments.
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show | A protective layer external to the plasma membrane in the cells of plants, prokaryotes, fungi, and some protists.
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primary cell wall | show 🗑
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secondary cell wall | show 🗑
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show | The substance in which animal cells are embedded, consisting of protein and polysaccharides synthesized and secreted by cells.
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show | A glycoprotein that helps animal cells attach to the extracellular matrix.
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show | An open channel in the cell wall of a plant through which strands of cytosol connect from an adjacent cell.
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