OSMOSIS
WATER MOVES · SUGAR STAYS
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Osmosis
dilute (more water)
concentrated (sugar)
membrane
✗
left level
right level
water crossed →
1. Definition
Water molecules pass through the semi-permeable membrane from the
dilute
side to the
concentrated
side
big molecules like sugar cannot pass
2. Animal Cell in Solutions
Hypotonic
swells
Isotonic
no change
Hypertonic
shrinks
3. Remember
Water moves towards the concentrated side
Roots take in water by osmosis
MATRIC BIOLOGY · TRANSPORT · PUNJAB BOARDS
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