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5 Written questions

5 Matching questions

  1. chromosome
  2. peroxisome
  3. microtubule
  4. prokaryotic cell
  5. light microscope (LM)
  1. a 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.
  2. b A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
  3. c A 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.
  4. d An organelle containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
  5. e 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.

5 Multiple choice questions

  1. 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.
  2. An open channel in a plant cell wall through which strands of cytoplasm connect from adjacent cells.
  3. An extensive membranous network in a eukaryotic cell, continuous with the outer nuclear membrane and composed of ribosome-studded (rough) and ribosome-free (smooth) regions.
  4. A microscope that uses an electron beam to study the surface architecture of a cell or other specimen.
  5. A stack of hollow disks formed of thylakoid membrane in a chloroplast. Grana are the sites where light energy is trapped by chlorophyll and converted to chemical energy during the light reactions of photosynthesis.

5 True/False questions

  1. mitochondrionA photograph taken through a microscope.

          

  2. Reverse TranscriptaseA network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles.

          

  3. endomembrane systemA network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles.

          

  4. micrographA photograph taken through a microscope.

          

  5. Golgi apparatusAn organelle in eukaryotic cells consisting of stacks of membranous sacs that modify, store, and ship products of the endoplasmic reticulum.