Gelatin is a—

✅Explanation Gelatin is a protein derived from collagen, a major component of animal connective tissues. It is obtained by partial hydrolysis of collagen, which breaks down the protein into smaller peptides. Gelatin's unique ability to form a gel when dissolved in hot water and cooled makes it a valuable ingredient in food, pharmaceuticals, and other industries.

📌Other Options Explanations:
-Option B: Long chain polysaccharide: Polysaccharides are long chains of sugar molecules, as seen in agar-agar. While gelatin has a somewhat similar gelling property, its structural basis is different, being derived from protein rather than carbohydrates.
-Option C: Lipid: Lipids are fats and oils, not related to the protein structure of gelatin.
-Option D: Glycoprotein: While gelatin may contain some small carbohydrate attachments, it's primarily a protein and not classified as a glycoprotein.