BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Citrus fruits (oranges, tangerines, tangelos, grapefruits) have thick rinds with thin membranes inside that separate the flesh into segments.

Detailed explanation-2: -The leathery-rinded berry of citrus fruits (genus Citrus) is called a hesperidium. The elongated tough-skinned fruits of the family Cucurbitaceae, including watermelons, cucumbers, and gourds, are a type of berry referred to as pepos. Any small fleshy fruit is popularly called a berry, especially if it is edible.

Detailed explanation-3: -These thick-skinned fruits-mango, pineapple, avocado and watermelon are a few fruits that you do not need to buy organic. The thick skin protects the fruit from pesticide residue.

Detailed explanation-4: -Examples of hesperidium fruits are lemons, oranges, grapefruit, etc.

Detailed explanation-5: -The rind or peel of citrus fruits is divided into an exocarp or flavedo, which is the outer, colored part, and the mesocarp or albedo, which is the inner colorless (white) or sometimes tinted part. The flavedo consists of the epicarp proper, hypodermis, outer mesocarp, and oil glands.