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5 Written Questions

5 Matching Questions

  1. crista
  2. chloroplast
  3. cellular metabolism
  4. microtubule
  5. nucleus
  1. a The chemical activities of cells.
  2. b An infolding of the inner membrane of a mitochondrion in which is embedded the electron transport chain and the enzyme catalyzing the synthesis of ATP.
  3. c The thickest of the three main kinds of fibers making up the cytoskeleton of a eukaryotic cell; a straight, hollow tube made of globular proteins called tubulins. Microtubules form the basis of the structure and movement of cilia and flagella.
  4. d An organelle found in plants and photosynthetic protists that absorbs sunlight and uses it to drive the synthesis of organic molecules (sugars) from carbon dioxide and water.
  5. e (1) An atom's central core, containing protons and neutrons. (2) The genetic control center of a eukaryotic cell.

5 Multiple Choice Questions

  1. A dense region of DNA in a prokaryotic cell.
  2. A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells.
  3. A membrane-enclosed sac occupying most of the interior of a mature plant cell, having diverse roles in reproduction, growth, and development.
  4. A protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape.
  5. The thinnest of the three main kinds of protein fibers making up the cytoskeleton of a eukaryotic cell; a solid, helical rod composed of the globular protein actin.

5 True/False Questions

  1. rough ERA sac made of membrane in the cytoplasm of a eukaryotic cell.

          

  2. electron microscope (EM)An optical instrument with lenses that refract (bend) visible light to magnify images and project them into a viewer's eye or onto photographic film.

          

  3. micrographA photograph taken through a microscope.

          

  4. nuclear envelopeA double membrane, perforated with pores, which encloses the nucleus and separates it from the rest of the eukaryotic cell.

          

  5. extracellular matrix (ECM)A substance in which the cells of an animal tissue are embedded; consists of protein and polysaccharides.

          

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