Citations to 4 references. Energy flows through ecosystems, from the environment, into organisms, and back into the environment lost as heat. Materials cycle through ecosystems, from the environment into organisms, and back into the environment, then back into organisms. In one set of reactions, organisms capture energy from the environment in chemical form, and in another set of reactions, they harvest energy from the stored chemicals. Glycolysis splits glucose and releases a small amount of ATP and electron carriers.
Feedback inhibition regulates the rate of glycolysis.
Fermentation releases no ATP, but recycles electron carriers needed for glycolysis, and produces toxic waste products. When Kristine was 8, walking in NYC with her mom, she suddenly felt like needles were pricking her legs. Her heart raced, it was hard to breathe. Vancouver Wash. Often sick with colds. Often stayed home from school.