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5 Written questions

5 Matching questions

  1. crista
  2. mitochondrion
  3. cytoplasm
  4. nucleolus
  5. Vesicle
  1. a Everything inside a cell between the plasma membrane and the nucleus; consists of a semifluid medium and organelles.
  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 An organelle in eukaryotic cells where cellular respiration occurs. Enclosed by two concentric membranes, it is where most of the cell's ATP is made.
  4. d A structure within the nucleus of a eukaryotic cell where ribosomal RNA is made and assembled with proteins imported from the cytoplasm to make ribosomal subunits.
  5. e A sac made of membrane in the cytoplasm of a eukaryotic cell.

5 Multiple choice questions

  1. A macromolecule consisting of one or more polypeptides linked to short chains of sugars.
  2. A protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape.
  3. A microscope that uses an electron beam to study the surface architecture of a cell or other specimen.
  4. An organelle containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
  5. The chemical activities of cells.

5 True/False questions

  1. microfilamentThe 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.


  2. centrioleA sac made of membrane in the cytoplasm of a eukaryotic cell.


  3. endoplasmic reticulum (ER)An instrument that focuses an electron beam through, or onto the surface of, a specimen. An electron microscope achieves a hundredfold greater resolution than a light microscope.


  4. chromosomeA threadlike, gene-carrying structure found in the nucleus of a eukaryotic cell and most visible during mitosis and meiosis; also, the main gene-carrying structure of a prokaryotic cell. Chromosomes consist of chromatin, a combination of DNA and protein.


  5. micrographA photograph taken through a microscope.


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