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5 Written questions

5 Matching questions

  1. transcytosis
  2. inter-
  3. peroxisomes
  4. tumor suppresor genes
  5. cell membrane
  1. a section of DNA that codes for a protein that ordinarily inhibits cell division
  2. b between
  3. c the selectively permeable outer boundary of a cell consisting of a phospholipid bilyer embedded with proteins
  4. d combines endocytosis and exocytosis to selectively and rapidly transport a substance from one end of a cell to another or move substances across barriers formed by tightly connected cells
  5. e membranous cytoplasmic vesicle that contains enzymes that catalyze reactions that produce and decompose hydrogen peroxide

5 Multiple choice questions

  1. organelle composed of a system of membranous tubules and vesicles; provides a tubular communication system and an attachment for ribosomes; it also functions in the synthesis of proteins and lipids
  2. rod of the protein actin or myosin that provides structural support or movement in the cytoplasm
  3. gene that normally controls cell division, but when overexpressed leads to cancer
  4. diffusion of water through a selectively permeable membrane in response to a concentration gradient created by an impermeant solute
  5. the contents of a cell excluding the nucleus and the cell membrane

5 True/False questions

  1. mitosisa form of cell division that occurs in somatic (non sex) cells and produces two daughter cells from an original cell. They are genetically identical


  2. intercellular junctionssite of union between cells


  3. nucleolusthe small, dense body largely composed of RNA and protein within the cell nucleus


  4. lys-to break up


  5. signal transductiona protein that spans the membrane of a cell