Cell structure GapFill

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Key terms are missing from the text below. See if you can fill in the gaps by selecting one answer from each drop-down list. Check your answers by clicking on the button below. You need to fill in all of the empty fields before you can check your answers. You have three attempts to get all the answers right, but answering each one correctly first time will get you more marks! The pass mark is 69%.

Eukaryotic cells and prokaryotic cells share some of the same features, including:

  • a to control the movement of substances into and out of cells
  • ribosomes for synthesis (although they are generally in prokaryotes)
  • for strength
  • some form of DNA

  • In addition to the components listed above, a eukaryotic cell is likely to have several organelles, such as mitochondria, chloroplasts, Golgi apparatus and endoplasmic reticulum, which is categorised as , depending on whether it contains ribosomes, as well as in order to move these components around the cell. Prokaryotes may also contain one or more , a secondary source of genetic material, and for locomotion (which may also be present in some eukaryotes but are less common).

    Microscopes are useful tools for studying cells and their contents. Light microscopes are cheaper and easier to use than electron microscopes, but their is not as good, so images are not very sharp. Specimens are placed on slides onto the and viewed using the eyepiece lens. can be used to identify various features of the specimens, and their true size can be calculated by dividing the image size by the . Electron microscopes can achieve much greater magnifications but have several limitations, including the fact that they cannot be used to view specimens.

    This is your 1st attempt! You get 3 mark(s) for each one you get right. Good luck!