INTERNAL STRUCTURE OF THE RICE GRAIN

THE RICE GRAIN, OTHERWISE KNOWN AS THE FRUIT OF THE RICE PLANT, DEVELOPS AT THE END OF A PANICLE IN A CLUSTER OF SPIKELETS. THE OUTER COATING SERVES AS PROTECTION TO THE FRUIT THAT LIES INSIDE.

Below are several pictures and diagrams labeling and describingthe internal structure of the rice grain.

THIS PICTURE COMPARES THE RICE GRAIN WITH OUTLINES OF FRUIT FROM THREE OTHER CROP PLANTS.

- WHEAT (A), BARLEY (B), CORN (C), AND RICE (D) -

A COVERED RICE GRAIN . . . . TO A MEDIAL LONGITUDINAL SECTION OF RICE GRAIN (The brown center was stained with I2KI and is the starchy endosperm; the white is the embryo sac)

To the RIGHT is a

detailed diagram

labeling the internal

structures of a medial

longitudinal section

of a rice grain.

BELOW is an upclose

view of the embryo.

The numbers

above coorespond to

the numbers below.

The following pictures are of the endosperm of the rice grain. The first picture is an overall view of the endosperm, while the next two are successively closer views. It should be noted that starch is the main substance being stored in the cells.