Biology 9700 · AS & A Level · Replication and division of nuclei and cells

Replication and division of nuclei and cells — practice question

The diagram represents the epidermis of human skin. It consists of four layers of cells. The cells in each layer carry out particular functions, which are indicated on the diagram. As new cells are formed, they travel upwards in the direction of the arrow. Which row identifies cells acting as stem cells in the skin epidermis and an organelle required by the keratinocytes?

  • Abasal cells only; centrioles
  • Bbasal cells only; Golgi body
  • Cbasal cells and keratinocytes; centrioles
  • Dbasal cells and keratinocytes; Golgi body

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