rakuenso Posted August 5, 2005 Posted August 5, 2005 I've two general questions.... Why is that plants we eat contain so much less protein than your meaty counterparts? They still require lots of protein to function don't they? I'm guessing that the protein levels is denser in that of muscles and meat Where do plants obtain their amino acids from? They don't exactly have the trypsin and pepsins needed to break down protein & peptide bonds....
zyncod Posted August 5, 2005 Posted August 5, 2005 Plants are mostly water and cellulose. They don't need to move, so their protein content is pretty minimal. And they make their own amino acids, like most organisms do.
ecoli Posted August 5, 2005 Posted August 5, 2005 they get nitrates from the soil. legumes have special nitrogen fixing bacteria that plants can use to get nitrogen and built amino acids.
rakuenso Posted August 5, 2005 Author Posted August 5, 2005 Hmm ok I thought most of our amino acids was the result of breaking peptide bonds into individual amino acids.
ecoli Posted August 5, 2005 Posted August 5, 2005 Hmm ok I thought most of our amino acids was the result of breaking peptide bonds into individual amino acids. OUR amino acids do come from breaking peptide bonds. But plants don't eat like we eat and don't injest proteins, so can't rely on this source.
Mokele Posted August 5, 2005 Posted August 5, 2005 Even the plants that *do* eat animals (like mine) don't digest them in the same way; they mostly just digest them into a soup and absorb specific elements/ions they need like magnesium and such. Mokele
YT2095 Posted August 5, 2005 Posted August 5, 2005 Why is that plants we eat contain so much less protein than your meaty counterparts? the don`t? at least not All of them anyway, in fact Soya beans contain more protein gram per gram than that the finest cut of steak you can buy. Peanuts are also packed with protein (even the hummble can of baked beans).
Primarygun Posted August 5, 2005 Posted August 5, 2005 they make their own amino acids, like most organisms do. Yes they do. Plant can synthesize all the amino acids they need but we human cannot. Approximately, there are 8 amino acids we cannot synthesize ourself so they are called essential amino acids. We must obtain them from other organisms. Hmm ok I thought most of our amino acids was the result of breaking peptide bonds into individual amino acids. As protein and peptide are large in size and usually insoluble,they are usually broken down into amino acids before the absorption of these nutrients into our blood capillaries ,which is located in small intestine. To the nutrient table (those can be digested in human body) of human, I think the most abundant composition of plant is the carbohydrate.
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