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Examen
2024 Exchange Surfaces Exam With Verified Solutions
Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ANSWER • increased surface area • thin layer • ...
contenthive76
Examen
Exchange Surfaces Verified Solutions 2023/2024
PopularEXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024 Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ...
STUDENTSCORE
Examen
EXCHANGE SURFACES Test Exam Questions And Answers Verified 100% Correct
EXCHANGE SURFACES Test Exam Questions And Answers Verified 100% Correct What is at the end of the tracheoles in insects? - ANSWER tracheal fluid oxygen diffuses faster in air than it does in water so tracheal fluid is a barrier to oxygen diffusion when insect is active more SA of muscle is exposed so more O2 can diffuse structure of gills - ANSWER gills composed of thousands of filaments. each filament is covered in lamallae lamallae are thin so dif...
TopGradeGuru
Examen
Exchange Surfaces Verified Solutions 2023/2024
EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024 Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ...
brilliantstudies
Examen
Exchange Surfaces Verified Solutions 2023/2024
EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024 Why do multicellular organisms need specialised exchange surfaces but single celled organisms don't? - ANSWER single celled organisms can exchange materials across their CSM to meet requirements - metabolic activity low → O2 needs low + CO2 produced is low - large SA:V ratio Multicellular organisms are the opposite - high metabolic rate (active + maintain temp) - small SA:V ratio 3 main features of an efficient exchange surface - ...
EWLindy