What processes make up METABOLISM would be a digestive system B circular system respiratory system and doctrine cistern and urinary system
Metabolism is the collective term used to describe the complex set of biochemical processes occurring in living organisms that allow them to maintain life. While the systems you mentioned, such as the digestive system, circulatory system, respiratory system, and urinary system, are closely related to metabolism, they are not the processes that make up metabolism itself.
To understand the processes that contribute to metabolism, we need to focus on cellular level activities within the body. The key processes involved in metabolism are:
1. Catabolism: This process involves breaking down complex molecules into simpler ones, releasing energy in the process. For example, the digestion of food in the digestive system breaks down carbohydrates, proteins, and fats into their respective simpler components like glucose, amino acids, and fatty acids.
2. Anabolism: This process involves building complex molecules from simpler ones, requiring energy. An example of anabolism is when amino acids are synthesized into proteins, or when glucose and other molecules are converted into glycogen for storage in the liver and muscles.
3. Energy expenditure: This refers to the energy used by the body to perform various functions, including the synthesis of molecules, contraction of muscles, regulation of body temperature, and maintaining cell integrity.
While the digestive system plays a crucial role in supplying nutrients for catabolism and anabolism, the circulatory and respiratory systems transport these nutrients and the metabolic waste products between different organs and tissues. The urinary system is responsible for filtering waste products, excess water, and other substances from the bloodstream, helping to maintain the body's fluid balance and electrolyte levels.
So, to summarize, while the digestive, circulatory, respiratory, and urinary systems all contribute to metabolism indirectly, the actual processes that make up metabolism occur at the cellular level and involve catabolism, anabolism, and energy expenditure.