Nutrients:
* Glucose: The primary energy source for cells.
* Amino acids: Building blocks for proteins.
* Fatty acids: Used for energy and cell structure.
* Vitamins and minerals: Essential for various bodily functions.
Waste products:
* Carbon dioxide: A byproduct of cellular respiration, removed from the body by the lungs.
* Urea: A waste product of protein metabolism, removed by the kidneys.
* Lactic acid: Produced during strenuous exercise, removed by the liver.
Hormones:
* Insulin: Regulates blood sugar levels.
* Growth hormone: Promotes growth and development.
* Thyroid hormones: Regulate metabolism.
* Estrogen and testosterone: Sex hormones.
Antibodies:
* Proteins produced by the immune system to fight off infections.
Other:
* Water: Essential for transporting other substances and regulating body temperature.
* Electrolytes: Minerals like sodium, potassium, and calcium that are crucial for nerve function and muscle contraction.
* Clotting factors: Proteins that help stop bleeding.
The blood is a complex and vital transport system, ensuring the delivery of essential substances and removal of waste products, all while contributing to maintaining homeostasis within the body.
