A. humans have enzymes that can hydrolyze the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose.
B. the monomer of starch is glucose, while the monomer of cellulose is galactose.
C. the monomer of starch is glucose, while the monomer of cellulose is maltose.
D. humans have enzymes that can hydrolyze the beta glycosidic linkages of starch but not the alpha glycosidic linkages of cellulose.
E. humans harbor starch digesting bacteria in the digestive tract.
2007-01-28 09:51:37 · 8 answers · asked by Vishal S 1 in Science & Mathematics ➔ Biology
The answer is A. Human enzymes recognize and hydrolize the alpha bonds (alpha gyclosidic linkages) but because we don't have the enzyme cellulase we cannot break down beta gyclosidic linkages which compose cellulose.
2007-01-30 12:50:25 · answer #1 · answered by Induced_Reality 3 · 0⤊ 1⤋
This Site Might Help You.
RE:
Humans can digest starch but not cellulose because?
A. humans have enzymes that can hydrolyze the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose.
B. the monomer of starch is glucose, while the monomer of cellulose is galactose.
C. the monomer of starch is glucose, while the monomer of cellulose is...
2015-08-07 06:42:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Answer is A
humans have enzymes that can hydrolyze the alpha glycosidic linkages of starch
but cows have bacteria in their stomachs that hydrolyze the beta glycosidic linkages of cellulose, in addition termites can digest cellulose
2007-01-28 10:37:48 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A or D Not sure of the linkages. It takes the cellulase enzyme produced by many bacteria that reside in grass eating animals digestive tract. Same with termites. they have several bacteria in their gut that produces cellulase, also shipworms. There may be some re absorption pathways in herbivores that are also involved. Humans as well as animals do not produce cellulase on their own.
2007-01-28 10:07:31 · answer #4 · answered by Anonymous · 0⤊ 1⤋
The monomer of cellulose is glucose. I think the right answer should be "Humans haven't the right bacteria for digesting cellulose as ruminants have." ;-)
2016-03-19 00:13:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The answer is indeed A. The beta linkage can be broken down by bacteria in the gut of termintes but humans cannot do this. This is how celllulose becomes soluble fiber in humans.
2007-01-28 11:47:48 · answer #6 · answered by mr.answerman 6 · 0⤊ 0⤋
Because we can't lol
2007-01-28 09:56:24 · answer #7 · answered by whatevbookwrm687 4 · 0⤊ 1⤋
A.
2007-01-28 10:01:56 · answer #8 · answered by Anonymous · 0⤊ 1⤋