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5 Written questions

5 Matching questions

  1. sex pili
  2. nuclear pore
  3. centriole
  4. bacillus
  5. leucoplast
  1. a aerobic rod-shaped spore-producing bacterium
  2. b A structure in an animal cell composed of cylinders of microtubule triplets arranged in a 9 + 0 pattern. An animal cell usually has a pair of centrioles involved in cell division.
  3. c Colorless plastids that synthesize and store starches and oils
  4. d elongated, hollow appendages that pull 2 cells together prior to DNA transfer from one cell to the other found in bacterium
  5. e opening in the nuclear envelope that permits the passage of proteins into the nucleus and ribosomal subunits out of the nucleus

5 Multiple choice questions

  1. group of closely related plant organelles that are used for storage of starches, lipids, or pigments; includes chloroplasts, chromoplasts, and amyloplasts (leucoplasts).
  2. enzyme-filled vesicle in which fatty acids and amino acids are metabolized to hydrogen peroxide that is broken down to harmless products
  3. Infoldings of the inner membrane of a mitochondrion that houses the electon transport chain and the enzyme catalyzing the synthesis of ATP.
  4. A network of membranes inside eukarytoic cells invovled in lipid synthesis (steroid in gonads), detoxification (in liver cells), and/or Ca2+ storage (muscle cells); lacks ribosomes on the surface
  5. any spherical or nearly spherical bacteria

5 True/False questions

  1. prokaryotic cellA type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles. Examples of organisms with these cells are protists, plants, fungi, and animals; organisms are in the Eukarya domain


  2. surface-area-to volume ratioratio of a cell's outside area to its internal volume


  3. nuclear envelopein a prokaryotic cell, the portion composed of the plasma membrane, the cell wall and the gycocalyx


  4. flagelluma lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)


  5. motor moleculeA hollow rod of tubulin protein in the cytoplasm of all eukaryotic cells and in cilia, flagella, and the cytoskeleton.


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