Question:

In a turgid cell, value of which of the following is zero?

Updated On: Jul 28, 2022
  • suction pressure $(SP)$
  • wall pressure $(WP)$
  • turgor pressure $(TP)$
  • osmotic pressure $(OP)$
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The Correct Option is A

Solution and Explanation

In a turgid cell, turgor pressure $(TP)$ is equal to $WP$ (wall pressure) so suction pressure or $DPD$ becomes zero i.e., no more water can come inside. It can be shown by the following equation $DPD (SP) - TP - WP$ $ \because TP - WP$ (in turgid cells) $\therefore DPD$ or $SP - 0$
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Concepts Used:

Osmosis

Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.

There are three different types of solutions:

  • Isotonic Solution is one that has the same concentration of solutes both inside and outside the cell.
  • Hypertonic solution is one that has a higher solute concentration outside the cell than inside.
  • Hypotonic solution is one that has a higher solute concentration inside the cell than outside.