Question

The sources of rice and food grains is
(A) Plant
(B) Animal
(C) Both A and B
(D) None of the above

Answer 1

Hint: A small, edible, hard and dry part of the plant is called grains. It can be attached to a hull or can be free from the hull. A hull is the tough outer layer of a grain.

Complete answer:
- The source of rice and other food grains is crop. Rice is named Oryza sativa botanically. The other spice of rice is Oryza glaberrima. It is the most widely consumed staple food and the largest or maximum part of the world’s population. Rice is the most important food grain in respect with its nutritional and calorific value.
- A staple food is a food that is eaten in a large quantity regularly or daily basis. Examples of staple food are rice, corn, maize etc. rice belong to the category of monocotyledon. I.e. The seeds of rice contain a single cotyledon. A cotyledon is an embryonic part that stores food material of seed that can be used in adverse environmental conditions.

A grain consists of 3 parts namely the bran, gems, and endosperm.
(1) Bran: It is the outermost layer of grain that is rich in fiber. It supplies nutrients like vitamin B, iron, copper, zinc, magnesium, phytochemicals and antioxidants. The natural chemical compounds found in plants that play an important role in prevention of diseases are called phytochemicals.
(2) Germ: This layer is rich in healthy fats and contains essential nutrients such as vitamin B, vitamin E, phytochemicals and antioxidants are also found; it is the core of seed where growth occurs.
(3) Endosperm: The innermost layer of seed is named endosperm. It contains carbohydrates, proteins and little quantity of vitamins.
The example of food grains are wheat, rice, oats, cornmeal, barley, cereals etc. crop is a plant that can be cultivated or planted one large scale.

Hence the correct answer is option (A) Plant.

Note: Different regions of the world are famous for different types of cultivation. It depends on soil factors, climate conditions etc. Rice is one of the major staple foods in many parts of the world as it is a complex carb and is one of the primary sources of energy.