Water Balance in Organisms
Grade 10th Grade · Science · 40 min
What's Included
Learning Objective
I can describe how organisms maintain homeostasis through water regulation.
Warm-Up Video
Amoeba Sisters · 9:50
Osmosis and Water Potential (Updated)
Guided Notes
4 key concepts
- 1
In osmosis, water moves through a semi-permeable membrane from areas of high water concentration to areas of low water concentration, or from areas of low solute concentration to areas of high solute concentration.
- 2
A solution that is hypertonic has a higher solute concentration compared to another solution, while a hypotonic solution has a lower solute concentration; an isotonic solution has an equal concentration.
- 3
Water potential is calculated by adding pressure potential and solute potential, and water moves to areas of lower water potential.
- 4
Turgor pressure, which results from osmosis and plant cell walls, is critical for overall plant structure and the ability of plants to grow upright and not wilt.
Practice Questions
5 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Explain how saltwater fish maintain homeostasis in their environment, referencing the concept of osmosis.”
Complete Lesson Package
Get all 3 ready-to-use resources:
