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5 Written questions

5 Matching questions

  1. ribosome
  2. Golgi apparatus
  3. cell theory
  4. rough ER
  5. micrograph
  1. a A network of interconnected membranous sacs in a eukaryotic cell's cytoplasm. Rough ER membranes are studded with ribosomes that make membrane proteins and secretory proteins.
  2. b A cell structure consisting of RNA and protein organized into two subunits and functioning as the site of protein synthesis in the cytoplasm. The ribosomal subunits are constructed in the nucleolus.
  3. c The theory that all living things are composed of cells and that all cells come from other cells.
  4. d An organelle in eukaryotic cells consisting of stacks of membranous sacs that modify, store, and ship products of the endoplasmic reticulum.
  5. e A photograph taken through a microscope.

5 Multiple choice questions

  1. A network of protein fibers in the cytoplasm of a eukaryotic cell; includes microfilaments, intermediate filaments, and microtubules.
  2. 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.
  3. 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. An open channel in a plant cell wall through which strands of cytoplasm connect from adjacent cells.
  5. A process by which the mitochondria and chloroplasts of eukaryotic cells probably evolved from symbiotic associations between small prokaryotic cells living inside larger cells.

5 True/False questions

  1. cytoplasmEverything inside a cell between the plasma membrane and the nucleus; consists of a semifluid medium and organelles.


  2. nucleus(1) An atom's central core, containing protons and neutrons. (2) The genetic control center of a eukaryotic cell.


  3. VacuoleA sac made of membrane in the cytoplasm of a eukaryotic cell.


  4. light microscope (LM)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.


  5. intermediate filamentThe 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.


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