Osmosis (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
In osmosis, water moves from an area of high water concentration to where?
In osmosis, water moves from an area of high water concentration to where?
Area of low water concentration
Does osmosis require energy?
Does osmosis require energy?
No, it is a passive process
What molecules move during osmosis?
What molecules move during osmosis?
Water molecules only
What is the permeability of the plant cell wall?
What is the permeability of the plant cell wall?
Fully permeable
What happens to a plant cell in distilled water?
What happens to a plant cell in distilled water?
Becomes turgid
What is turgor pressure?
What is turgor pressure?
Pressure of vacuole against cell wall
What happens to a plant cell in a highly concentrated solution?
What happens to a plant cell in a highly concentrated solution?
Becomes plasmolysed
Why do animal cells burst in very dilute solutions?
Why do animal cells burst in very dilute solutions?
No cell wall for support
What happens to animal cells in a very concentrated solution?
What happens to animal cells in a very concentrated solution?
Shrink and become dehydrated
How does salt preserve fish and meat?
How does salt preserve fish and meat?
Removes water from microorganisms
What is a hypertonic solution?
What is a hypertonic solution?
Lower water concentration than cell
What is a hypotonic solution?
What is a hypotonic solution?
Higher water concentration than cell