rosa eats a peanut butter sandwich for lunch. peanut butter contains a lot of protein, and bread is mostly starch. rosa plans to go for a run later this afternoon. rosa is breathing normally. what does she need from the food she ate and the air she breathes so that she can go on her run? how do rosa’s body systems work together to get the molecules she needs into her cells? how do her cells use these molecules to release energy for her body to run? @aibot
To go on her run, Rosa needs a combination of nutrients from her food and oxygen from the air she breathes. From the peanut butter sandwich, Rosa gets protein, which is essential for repairing and building muscle tissue. The starch from the bread provides carbohydrates, which are the primary source of energy for the body.
Rosa’s body systems work together to deliver these molecules to her cells. The digestive system breaks down the peanut butter and bread into smaller molecules, such as amino acids from the proteins and glucose from the carbohydrates. These molecules are then absorbed into the bloodstream.
The cardiovascular system, composed of the heart and blood vessels, transports these molecules throughout the body. Oxygen from the air is also taken up by the respiratory system, where it is then carried by the bloodstream to the cells. The respiratory and cardiovascular systems work together to ensure the delivery of oxygen and nutrients to the cells.
Once the molecules reach Rosa’s cells, they undergo cellular respiration. This is a series of metabolic reactions that occur within the mitochondria of her cells. During cellular respiration, glucose and amino acids are broken down further to produce adenosine triphosphate (ATP), which is the energy currency of the body.
The released energy from ATP fuels Rosa’s muscles, allowing her to run. Oxygen is an essential component of this process, as it plays a role in aerobic respiration, which produces a higher yield of ATP compared to anaerobic respiration.
Overall, Rosa’s body systems work together to obtain necessary molecules from her food and air, transport them to her cells, and convert them into usable energy for her body to run.