Humans Can Digest Starch but Not Cellulose Because

question 72

Multiple Choice

Humans can digest starch but not cellulose because

• A)the monomer of starch is glucose,whereas the monomer of cellulose is glucose modified by the addition of a nitrogen-containing group.
• B)humans have enzymes that can hydrolyze the β glycosidic linkages of starch but not the α glycosidic linkages of cellulose.
• C)humans have enzymes that can hydrolyze the α glycosidic linkages of starch but not the β glycosidic linkages of cellulose.
• D)humans harbor starch-digesting bacteria in the digestive tract but not cellulose-digesting bacteria.

---

Definitions:

Serratus Anterior

A muscle on the side of the chest that helps rotate the arm and move it away from the body.

Pectoralis Minor

A thin, triangular muscle located beneath the Pectoralis Major in the chest, involved in functions like scapula downward rotation, depression, and anterior tilt.

Rhomboideus Major

A muscle in the back that is involved in moving the shoulder blades and supporting the arm.

Supination

Rotation of the forearm (when the forearm is parallel to the ground) so that the anterior surface is up (supine).