What happens during the preparatory and final stages of the exchange?
| June 19, 2021 | education
During the preparatory stage, food is broken down with the help of saliva in the oral cavity, then digestion and transportation of substances and oxygen. Carbohydrates are broken down to glucose, proteins are broken down to amino acids, fats to glycerol and nucleic acids to nucleotides.
During the final stage, waste products of the body are released. This is how ATP molecules are synthesized, lactic acid molecules are synthesized, etc.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
