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Which 4-carbon acids move from the mesophyll to the bundle sheath in C4 plants?
APyruvic and formic acid
BMalic or aspartic acid
CCitric and succinic acid
DLactic and acetic acid
Answer & Solution
Correct answer: B. Malic or aspartic acid
OAA is converted to malic or aspartic acid, which are transported to bundle sheath cells and broken down to release CO2.
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