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- Study guides, Class notes & Summaries
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Exam (elaborations)
EXCHANGE SURFACES Test Exam Questions And Answers Verified 100% Correct
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24
June 2025
2024/2025
A+
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
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Exam (elaborations)
EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024
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24
March 2024
2023/2024
A+
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 - ...
STUDENTSCORE
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Exam (elaborations)
EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024
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-
-
24
March 2024
2023/2024
A+
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
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Exam (elaborations)
2024 EXCHANGE SURFACES EXAM WITH VERIFIED SOLUTIONS
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24
January 2024
2023/2024
A+
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
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Exam (elaborations)
EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024
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-
-
24
June 2023
2022/2023
A+
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
$12.49
More Info
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