Refer to the graph. the graph shows the progress of digestion as carbohydrates, fats, and proteins pass through the human digestive tract. the horizontal axis indicates the relative distance along the digestive tract, from the mouth to the anus. the vertical axis indicates the percentage of undigested food remaining as the food moves through the digestive tract. the percentages of undigested carbohydrate, fat, and protein are shown separately, but they are identified as 1, 2, or 3. knowing that saliva breaks starches into monosaccharides, some of which are absorbed in the mouth, which of the traces indicates the carbohydrate digestion?







there is not enough information to determine the answer.



1



3





2



question 3 (multiple choice)

most of the body's energy needs should be supplied by dietary _____________.



fats



vitamins



proteins



carbohydrates



question 4 (multiple choice)

all essential amino acids ___________________.



are found in every protein molecule



are made in our body in…