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Bundle sheath cells

1. Are rich in RuBisCo
2. Are rich in PEP carboxylase
3. Lack RuBisCo
4. Lack both RuBisCo and PEP carboxylase

Correct answer: Are rich in RuBisCo

Solution

In C4 plants, bundle sheath cells contain high concentrations of RuBisCo because they perform the Calvin cycle. PEP carboxylase is mainly found in mesophyll cells, where it initially captures CO2.

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