Question

Sugars produced in the leaf are distributed throughout the plant body. An experimenter supplies plants with a pulse of radiolabeled CO2 in a control chamber. The movement of radioactively labeled sugar is monitored in the plant by analyzing different cells' content over time. Where will the radiolabeled sugar appear immediately after detection in the leaf cells?

a) Phloem
b) Xylem
c) Mesophyll cells
d) Stomata

Answer 1

The radiolabeled sugar will appear immediately after detection in the mesophyll cells.

Step-by-step explanation:

When a pulse of radiolabeled CO₂ is provided to isolated leaves, the radiolabeled sugar will appear immediately after detection in the mesophyll cells.