Define osmosis and state how it differs from diffusion.
Absorption by Roots
Original Khojo Papers practice question — not from a past board paper.
Osmosis is the movement of solvent molecules from a region of higher water potential (a dilute solution) to a region of lower water potential (a concentrated solution) through a semi-permeable membrane.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Osmosis is a special case of diffusion involving only the solvent and a semi-permeable membrane.
From the same topic and chapter, at a similar level.
Define osmosis and state how it differs from diffusion.
Absorption by Roots
The movement of water through a semipermeable membrane from a dilute to a concentrated solution is:
Absorption by Roots
What is root pressure and what part does it play in the ascent of sap?
Absorption by Roots
What happens to a plant cell when it is placed in a hypertonic solution?
Absorption by Roots
Describe the structure of a root hair and state how it is adapted for absorption.
Absorption by Roots
Define turgor pressure and wall pressure, and state the importance of turgidity to a plant.
Absorption by Roots