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5 Written questions

5 Matching questions

  1. plasma membrane
  2. intermediate filament
  3. Reverse Transcriptase
  4. Transport vesicle
  5. Vacuole
  1. a Makes RNA into DNA
  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 The membrane that sets a cell off from its surroundings and acts as a selective barrier to the passage of ions and molecules into and out of the cell; consists of a phospholipid bilayer in which are embedded molecules of protein and cholesterol.
  4. d A tiny membranous sac in a cell's cytoplasm carrying molecules produced by the cell. The vesicle buds from the endoplasmic reticulum or Golgi and eventually fuses with another membranous organelle or the plasma membrane, releasing its contents.
  5. e A membrane-enclosed sac that is part of the endomembrane system of a eukaryotic cell, having diverse functions.

5 Multiple choice questions

  1. 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.
  2. (1) An atom's central core, containing protons and neutrons. (2) The genetic control center of a eukaryotic cell.
  3. A structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9 and 0 pattern. An animal usually has a centrosome with a pair of centrioles involved in cell division.
  4. A network of protein fibers in the cytoplasm of a eukaryotic cell; includes microfilaments, intermediate filaments, and microtubules.
  5. The complex of DNA and proteins that constitutes eukaryotic chromosomes; often used to refer to the diffuse, very extended form taken by chromosomes when a cell is not dividing.

5 True/False questions

  1. transmission electron microscopeA microscope that uses an electron beam to study the surface architecture of a cell or other specimen.


  2. micrographA photograph taken through a microscope.


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


  4. flagellumA membrane-enclosed structure with a specialized function within a cell.


  5. light microscope (LM)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.