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5 Written questions

5 Matching questions

  1. rough ER
  2. mitochondrion
  3. chloroplast
  4. Vesicle
  5. lysosome
  1. a 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. b A sac made of membrane in the cytoplasm of a eukaryotic cell.
  3. c A network of interconnected membranous sacs in a eukaryotic cell's cytoplasm. Rough ER membranes are studded with ribosomes that make membrane proteins and secretory proteins.
  4. d An organelle found in plants and photosynthetic protists that absorbs sunlight and uses it to drive the synthesis of organic molecules (sugars) from carbon dioxide and water.
  5. e A digestive organelle in eukaryotic cells; contains hydrolytic enzymes that digest the cell's food and wastes.

5 Multiple choice questions

  1. The chemical activities of cells.
  2. A photograph taken through a microscope.
  3. A microscope that uses an electron beam to study the internal structure of thinly sectioned specimens.
  4. A process by which the mitochondria and chloroplasts of eukaryotic cells probably evolved from symbiotic associations between small prokaryotic cells living inside larger cells.
  5. 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 True/False questions

  1. cristaThe fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water; Sugars are made in the stroma by the enzymes of the Calvin cycle.

          

  2. cytoskeletonEverything inside a cell between the plasma membrane and the nucleus; consists of a semifluid medium and organelles.

          

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

          

  4. endomembrane systemA process by which the mitochondria and chloroplasts of eukaryotic cells probably evolved from symbiotic associations between small prokaryotic cells living inside larger cells.

          

  5. scanning electron microscope (SEM)A microscope that uses an electron beam to study the surface architecture of a cell or other specimen.