From the following list of answer options, select all that are accurate with res
ID: 72901 • Letter: F
Question
From the following list of answer options, select all that are accurate with respect to enzymatic digestion and/or absorption of carbohydrates (a.k.a. sugars; a.k.a. saccharides) in the human oral cavity.
Question 4 options:
A) No enzymatic carbohydrate digestion initiates in the oral cavity because of the absence of sugar-digesting enzymes in saliva.
B) Salivary -amylase initiates the enzymatic digestion of all types of ingested dietary complex carbohydrates (including complex glucose polymer-type carbohydrates like starches and glycogen and dietary disaccharides including lactose and sucrose) in the oral cavity.
C) Salivary -amylase initiates the enzymatic digestion of only complex glucose polymer-type carbohydrates like starches and glycogen in the oral cavity.
D) Salivary -amylase initiates the enzymatic digestion of only dietary disaccharides including lactose and sucrose in the oral cavity.
E) The pH of the oral cavity is optimal for maximum salivary -amylase enzyme activity.
F) The pH of the oral cavity is sub-optimal for maximum salivary -amylase enzyme activity.
G) Salivary -amylase action generates an abundance of absorbable end-products of carbohydrate digestion in the oral cavity.
H) Abundant absorption of final end products of carbohydrate absorption occurs across the surface epithelium lining the oral cavity.
I) Salivary -amylase action generates some products of carbohydrate digestion in the oral cavity, but those generated are largely non absorbable and require further enzymatic modification in later regions of the digestive tract before they can be absorbed.
J) Brush border enzymes generated by and attached to the lumen surface of the epithelial cells of the oral cavity initiates the enzymatice digestion of lactose and sucrose in the mouth.
K) No enzymatic modification of ingested lactose or sucrose occurs in the oral cavity.
Explanation / Answer
B) Salivary -amylase initiates the enzymatic digestion of all types of ingested dietary complex carbohydrates (including complex glucose polymer-type carbohydrates like starches and glycogen and dietary disaccharides including lactose and sucrose) in the oral cavity.
The pH of the oral cavity is optimal for maximum salivary -amylase enzyme activity.
I) Salivary -amylase action generates some products of carbohydrate digestion in the oral cavity, but those generated are largely non absorbable and require further enzymatic modification in later regions of the digestive tract before they can be absorbed.
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