Features of Transport Systems (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why do large organisms need transport systems while small organisms do not?
Why do large organisms need transport systems while small organisms do not?
SA:V ratio decreases with size
If a cube's side length doubles, how do surface area and volume change?
If a cube's side length doubles, how do surface area and volume change?
SA x4, volume x8
How do small organisms exchange materials with their environment?
How do small organisms exchange materials with their environment?
Directly across body surface
Which are examples of specialist exchange surfaces in large organisms?
Which are examples of specialist exchange surfaces in large organisms?
Lungs and intestines
What two factors determine if an organism needs a specialised transport system with a pump?
What two factors determine if an organism needs a specialised transport system with a pump?
SA:V ratio and activity level
Why are transport media typically water-based liquids like blood?
Why are transport media typically water-based liquids like blood?
Water dissolves substances and flows easily
What is mass transport in biological systems?
What is mass transport in biological systems?
Transport medium moves in bulk over distance
What is the function of a closed tubular system in transport?
What is the function of a closed tubular system in transport?
Contains and directs transport medium
How do animals and plants differ in their pumping mechanisms?
How do animals and plants differ in their pumping mechanisms?
Animals use muscles; plants use evaporation
What maintains mass flow movement in one direction in transport systems?
What maintains mass flow movement in one direction in transport systems?
Valves