Osmosis (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is osmosis?
What is osmosis?
Water moves from less to more concentrated
What does a dilute sugar solution have?
What does a dilute sugar solution have?
High water concentration & high potential
In which direction does water move during osmosis?
In which direction does water move during osmosis?
From high to low water potential
Does osmosis require energy?
Does osmosis require energy?
No, it is passive
What is an isotonic solution?
What is an isotonic solution?
Same concentration inside & outside cell
In a hypertonic solution, what happens to water?
In a hypertonic solution, what happens to water?
Water moves out of the cell
What does hypotonic mean?
What does hypotonic mean?
Lower concentration outside than inside
What happens to animal cells in a dilute external solution?
What happens to animal cells in a dilute external solution?
They burst
What happens to animal cells in a concentrated external solution?
What happens to animal cells in a concentrated external solution?
They become shrivelled
What is turgor in plant cells?
What is turgor in plant cells?
Pressure keeping leaves & stems rigid
What is plasmolysis?
What is plasmolysis?
Cell membrane moving away from cell wall
What happens to plant cells in a less dilute external solution?
What happens to plant cells in a less dilute external solution?
Water moves out & cells become soft