Biology 5090 · O Level · Specialised cells, tissues and organs

Specialised cells, tissues and organs — practice question

The photomicrograph shows a part of a section through a root. The contents of cell X and the contents of cell Y are each tested using Benedict’s solution and iodine solution. Which results are expected?

  • Acell X: Benedict’s solution +, iodine solution +; cell Y: Benedict’s solution -, iodine solution -
  • Bcell X: Benedict’s solution +, iodine solution -; cell Y: Benedict’s solution +, iodine solution +
  • Ccell X: Benedict’s solution -, iodine solution +; cell Y: Benedict’s solution -, iodine solution +
  • Dcell X: Benedict’s solution -, iodine solution -; cell Y: Benedict’s solution +, iodine solution -

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