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5 Written Questions

5 Matching Questions

  1. intermediate filament
  2. microfilament
  3. Reverse Transcriptase
  4. lysosome
  5. plasmodesma
  1. a A digestive organelle in eukaryotic cells; contains hydrolytic enzymes that digest the cell's food and wastes.
  2. b An intermediate-sized protein fiber that is one of the three main kinds of fibers making up the cytoskeleton of eukaryotic cells. Intermediate filaments are ropelike, made of fibrous proteins.
  3. c Makes RNA into DNA
  4. d 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. e An open channel in a plant cell wall through which strands of cytoplasm connect from adjacent cells.

5 Multiple Choice Questions

  1. 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.
  2. A long cellular appendage specialized for locomotion. The flagella of prokaryotes and eukaryotes differ in both structure and function. Like cilia, eukaryotic flagella have a 9 + 2 arrangement of microtubules covered by the cell's plasma membrane.
  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. A membrane-enclosed sac occupying most of the interior of a mature plant cell, having diverse roles in reproduction, growth, and development.
  5. Everything inside a cell between the plasma membrane and the nucleus; consists of a semifluid medium and organelles.

5 True/False Questions

  1. VacuoleA membrane-enclosed sac that is part of the endomembrane system of a eukaryotic cell, having diverse functions.


  2. cell theoryThe theory that all living things are composed of cells and that all cells come from other cells.


  3. cell wallA protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists; protects the cell and helps maintain its shape.


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


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