Chapter 6: Cells

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Across
  1. 2. A type of intercellular junction in animal cells, consisting of proteins surrounding a pore that allows the passage of materials between cells.
  2. 3. A type of motor protein that associates into filaments that interact with actin filaments to cause cell contraction.
  3. 4. 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.
  4. 6. An organelle containing enzymes that transfer hydrogen atoms from various substrates to oxygen, producing and then degrading hydrogen peroxide.
  5. 7. junction A type of intercellular junction between animal cells that prevents the leakage of material through the space between cells.
  6. 8. In cilia and flagella, a large motor protein extending from one microtubule doublet to the adjacent doublet.
  7. 9. In plants, a thin layer of adhesive extracellular material, primarily pectins, found between the primary walls of adjacent young cells.
Down
  1. 1. A circular flow of cytoplasm, involving interactions of myosin and actin filaments, that speeds the distribution of materials within cells.
  2. 5. A large molecule consisting of a small core protein with many carbohydrate chains attached, found in the extracellular matrix of animal cells.
  3. 8. A type of intercellular junction in animal cells that functions as a rivet, fastening cells together.