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Physiological Process in Organisms

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Physiological Process in Organisms

Question

The following set up was used to investigate a physiological process in organisms

Physiological Process in Organisms

a) Why was the set up maintained at 37°C?
b) What is the observed colour in the following beakers at the end of the experiment

i) Beaker X
ii) Beaker Y

c) Account for the size of the visking tubing in Beaker Y at the end of the experiment
d) State the importance of the Physiological process being investigated to plants

Answer

a) To create optimum temperature for the enzyme in the saliva for maximum reaction
b)

i) X-Visking tubing maintained its size
ii) Visking tubing increased in size

c) Salivary amylase / Ptyalin broke down starch into glucose, the solution inside became hypertonic, thus gained water by osmosis, (making the visking tubing to increase in size)
d)
  • Water absorption by roots
  • Support
  • Osmoregulation
  • Water movement into the cells