your body needs the digested food to get into the blood stream
♥this happens by diffusion and active transport
♥the digested food molcules are initally higher in concentration in the intestine than in the blood, so the particles diffuse into the blood
♥ when most food has digested there is no concentration gradient so no more can diffuse. So, the remaining food is moved across by active transport.
♥ the body dose this because the energy it gets from the extra food transfered across is far greater than what it uses for the active transport of it
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