Passive Transport (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key characteristic of passive transport?
What is the key characteristic of passive transport?
Requires no energy from the cell
Which molecules can cross the membrane by simple diffusion?
Which molecules can cross the membrane by simple diffusion?
Small, nonpolar molecules like O₂ & CO₂
Why can't ions cross by simple diffusion despite being small?
Why can't ions cross by simple diffusion despite being small?
They are charged and hydrophilic
Which factors increase the rate of diffusion?
Which factors increase the rate of diffusion?
Steeper gradient & higher temperature
What assists molecules in facilitated diffusion?
What assists molecules in facilitated diffusion?
Protein channels or carrier proteins
What is osmosis?
What is osmosis?
Water moving from low to high solute area
What does hypertonic solution mean?
What does hypertonic solution mean?
Higher solute concentration
Where does water move in osmosis?
Where does water move in osmosis?
TO the hypertonic solution
What happens to plant cells in hypotonic solution?
What happens to plant cells in hypotonic solution?
Become turgid (swollen and firm)
Why is medical saline isotonic to blood cells?
Why is medical saline isotonic to blood cells?
Prevents cells from swelling or shrinking