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TOEFL
/
Listening practice
/ Section TJD6
Listen to an Academic Talk
Listen to part of a talk in a food science class.
Listen
26. According to the speaker, what does heat do to plant material?
A
It adds chemical energy to it.
B
It destroys substances that block absorption.
C
It removes water that slows digestion.
D
It breaks open cell walls our enzymes cannot.