Cellulose and Starch Are Similar in That They Are Both

question 50

Multiple Choice

Cellulose and starch are similar in that they are both polymers of glucose. Cellulose, however, forms sheet-like structures, which give rigidity to a plant, whereas starch forms spirals. What accounts for this difference in macroscopic structure?

• A) Cellulose is composed of d-glucose, whereas starch is composed of l-glucose.
• B) Cellulose and starch are connected together on different carbons.
• C) Cellulose is composed of l-glucose, whereas starch is composed of d-glucose.
• D) Cellulose has a  -(1→4) linkage, whereas starch has an  -(1→4) linkage.
• E) Starch has a  -(1→4) linkage, whereas cellulose has an  -(1→4) linkage.

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Definitions:

Frontal

Pertaining to the forehead or the anterior part of the brain.

Maxilla

The upper jaw bone in vertebrates that forms the major portion of the face, involved in forming the boundaries of the mouth and nasal cavity.

Zygomatic

Pertaining to the zygomatic bone or zygoma, which is a part of the skull that forms the prominence of the cheek.

Lacrimal

Pertaining to tears or the tear system, including glands and ducts involved in tear production and drainage.