Exchange surfaces (AQA GCSE Biology Combined Science): 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 main function of exchange surfaces in living organisms?
What is the main function of exchange surfaces in living organisms?
Help materials move in & out of cells
Which organisms need special exchange surfaces?
Which organisms need special exchange surfaces?
Large, multicellular organisms
What does surface area to volume ratio compare?
What does surface area to volume ratio compare?
How much surface area vs volume inside
What type of surface area to volume ratio do small organisms have?
What type of surface area to volume ratio do small organisms have?
High surface area to volume ratio
A cm × cm × cm cube has a surface area to volume ratio of:
A cm × cm × cm cube has a surface area to volume ratio of:
Which is NOT a way to make exchange surfaces more effective?
Which is NOT a way to make exchange surfaces more effective?
Decrease the surface area
What are the finger-like projections in the small intestine called?
What are the finger-like projections in the small intestine called?
Villi
How do exchange surfaces maintain concentration gradients?
How do exchange surfaces maintain concentration gradients?
Good blood supply removes materials
What is the approximate total surface area of the small intestine?
What is the approximate total surface area of the small intestine?
- m²
What is counter-current flow in fish gills?
What is counter-current flow in fish gills?
Blood flows opposite to water