A polysaccharide is described by its Haworth projection as follows: It consists of D-glucopyranose rings. The main continuous chain is formed by glycosidic linkages between C1 of one ring and C4 of the next, where the linking oxygen atom at C1 is directed below the plane of the ring. Furthermore, the polymer exhibits branching, where the C1 of a branch-initiating ring (with its linking oxygen also directed below the

Step-by-step solution

In a Haworth projection of D-glucopyranose, the CH₂OH group at C5 points above the plane of the ring. If the linking oxygen at the anomeric carbon (C1) points below the plane of the ring, it is trans to the CH₂OH group, which corresponds to the -anomer. The description states that the main chain has linkages between C1 and C4 with the oxygen pointing downwards, which means -C₁-C₄ glycosidic linkages. The branching occurs between C1 and C6 with the oxygen pointing downwards, meaning -C₁-C₆ glycosidic linkages. Carbo