Multiple choice

According to one vital force theory, ascent of sap is due to active pulsations of innermost layer of cortex just outside the endodermis. This theory was given by

  1. J.C. Bose

  2. Dixon

  3. Strasburger

  4. Sachs
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A Correct answer
Explanation

Sir J.C. Bose (1923) advocated pulsation theory to explain ascent of sap. He proved that the living cells of innermost layer of cortex lying just outside the endodermis were in a state of rhythmic pulsations.

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