NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A glycosidic bond is formed between two ____
A
Lipids
B
Carbohydrates
C
Nucleic Acids
D
Proteins
Explanation: 

Detailed explanation-1: -The bonds present between two carbohydrate molecules is glycosidic. A glycosidic bond is a type of covalent bond that joins a carbohydrate molecule to another group, which may or may not be another carbohydrate.

Detailed explanation-2: -A glycosidic bond (also known as glycosidic linkage)is created when the hemiacetal of a saccharide (or a molecule generated from a saccharide) reacts with the hydroxyl group of another substance, such as alcohol. Only sugars with the cyclic forms have an anomeric carbon and are capable of forming a glycosidic link.

Detailed explanation-3: -Carbohydrates are made up of monosaccharides linked together into polysaccharide chains by a type of covalent bond known as a glycosidic bond.

Detailed explanation-4: -There are are two types of glycosidic bonds-1, 4 alpha and 1, 4 beta glycosidic bonds. 1, 4 alpha glycosidic bonds are formed when the OH on the carbon-1 is below the glucose ring; while 1, 4 beta glycosidic bonds are formed when the OH is above the plane.

Detailed explanation-5: -Glycosidic bond is a condensation reaction between two sugar units, where the H-group from one sugar interacts with the-OH group on another to release water and link the sugar units together to form a polysaccharide.

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