Multiple choice Which of the following statements is correct about C4 plants? Mesophyll cells are rich in RuBisCO enzyme. Bundle sheath cells lack RuBisCO enzyme. Aspartic acid formed in bundle sheath cells is transported to mesophyll cells. CO2 is released in bundle sheath cells. All of the above Reveal answer Fill a bubble to check yourself D Correct answer Explanation In the bundle sheath cells these C4 acids are broken down to release CO2 and a 3-carbon molecule.