NEET BIOLOGY

Detailed explanation-1: -Carbohydrates are a group of macromolecules that are a vital energy source for the cell, provide structural support to many organisms, and can be found on the surface of the cell as receptors or for cell recognition.

Detailed explanation-2: -Answer and Explanation: The correct answer: The macromolecule which acts as the primary energy source for an organism is D) carbohydrate. The primary source of energy in most of the organisms is carbohydrate as it is the most abundant in most of the organism.

Detailed explanation-3: -Polysaccharides may be made from thousands of simple sugars linked together. These large molecules may be used for storage of energy or for structure. First a couple of storage examples: Starch is a storage polysaccharide of plants.

Detailed explanation-4: -Carbohydrates are essential macromolecules that are classified into three subtypes: monosaccharides, disaccharides, and polysaccharides. Carbohydrates are a major class of biological macromolecules that are an essential part of our diet and provide energy to the body.