2006-08-14 02:17:07 · 6 answers · asked by trixie 2 in Social Science ➔ Other - Social Science
unless particles are digested they are never absorbed folk
2006-08-14 02:27:56 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Intestinal secretions specially digestive enzymes convert the items by breaking them into substances soluble in blood.Proteins become aminoacids which are soluble in blood.Fructose becomes glucose again soluble in blood.The soluble particles are carried through mucous membrane into blood.Others are left in bowels.
2006-08-14 02:31:39 · answer #2 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋
intestine has got wavy nature to enhance the area of absorption . the cell membrane of these cells has got lipoidal nature. so the substance which has got lipoidal nature ,being of same polarity have faster absorption. also for absorption substance has to get in dissolved state to pass through thse membranes. also there works conc. gradient and the substance pass across the conc. gradient.
2006-08-14 02:31:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Many reasons. Particle size is one, but concentration is another. The higher the concentration, the more absorption.
2006-08-14 02:22:48 · answer #4 · answered by Gungnir 5 · 0⤊ 0⤋
Your body only takes what it needs, things like carrots etc can just pass right through.
2006-08-14 02:23:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
cause that is what it is supposed to do
read biology 101
2006-08-14 02:21:32 · answer #6 · answered by maruawe@sbcglobal.net 2 · 0⤊ 0⤋