BIOMOLECULES AND ENZYMES

Detailed explanation-1: -For this purpose, farmers use different types and sizes of combines. Combines are grain harvest machines named for their ability to perform a few operations in a single pass. The combine is a versatile machine designed to harvest and deliver clean grains that are ready for further processing or storage.

Detailed explanation-2: -Grain is the harvested seed of grasses such as wheat, oats, rice, and corn. Other important grains include sorghum, millet, rye, and barley. Around the globe, grains, also called cereals, are the most important staple food. Humans get an average of 48 percent of their calories, or food energy, from grains.

Detailed explanation-3: -Harvesting by hand is done with a sickle or a scythe; the ears of rice are cut at about 2030 cm above the ground. After cutting, the ears of rice are left to dry on the stubble for two or three days.

Detailed explanation-4: -Farmers keep dried grains in jute bags or metallic bins or mud bins. Large scale storage of grains is done in silos (Fig. 1.7) and granaries (Fig.