Two children on a playground—one sitting on a swing and the other hanging upside down on a climbing gym—are both eating ice cream. What can be said about differences in digestion of the ice cream, from mouth to stomach, between the two children?

+1 vote

 

The ice cream will reach the stomachs of both children in approximately the same amount of time because peristalsis takes place whether the mouth is above or below the stomach.

The ice cream will break down faster in the mouth of the upside-down child because a higher production of saliva will release more pepsin in the mouth.

The ice cream will reach the stomach faster in the child on the swing because movement in the esophagus depends on the downward force of gravity.

The ice cream will break down more rapidly in the mouth of the upside-down child, because this body position will accelerate amylase production.

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

The ice cream will reach the stomachs of both children in approximately the same amount of time because peristalsis takes place whether the mouth is above or below the stomach.

 

answered Dec 31, 2012 by Panda ~Expert~ (1,557 points)

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