Cell Organelles

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1. How is DNA arranged in prokaryotes and eukaryotes?

  • Prokaryotes and eukaryotes - linear
  • Prokaryotes - circular Eukaryotes - linear
  • Prokaryotes and eukaryotes - cirlular
  • Prokaryotes - linear Euaryotes- circular
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2. Which are three features of plant cell walls?

  • Found inside the cell membrane, freely permeable, and make the plant cell rigid
  • Made of cellulose, are freely permeable, and are on the outside of the cell membrane
  • Are rigid structures, allow the plant cell to change shape, and are partially permeable.
  • Made of cellulose, are partially permeable, and are on the outside of the cell membrane

3. During transcription, why is information from DNA copied onto RNA?

  • RNA would be wasted if it wasn't used
  • DNA is too large to leave the nucleus so its information is copied onto RNA which is small enough to leave through the nuclear pores
  • DNA is too important to leave the nucleus so RNA acts as a messenger delivering information to other organelles within the cell
  • DNA cannot obtain enough energy to properly deliver information to the other organelles and so it passes info onto RNA, which can gain enough energy to transfer the info

4. The internal membranes inside chloroplasts form flattened sacks - what are these sacks called?

  • Stroma
  • Chloroplast envolopes
  • Thylakoids
  • Granum

5. What is the name of the dark region within the nucleus?

  • The DNA
  • The nuclear sap
  • The nucleolus
  • The premature nuclei

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