Foods and Nutrition 1021 Chapter Notes - Chapter 3: Extracellular Fluid, Thymus, Fluid Compartments

• School: Western University
• Department: Foods and Nutrition
• Course: Foods and Nutrition 1021
• Professor: Noelle Martin

Document Summary

Human body is composed of trillions of cells. Ea(cid:272)h of the (cid:271)ody"s (cid:272)ells is a self-contained, living entity and depends on the rest of the (cid:271)ody"s (cid:272)ells to supply its (cid:374)eeds. Most basic needs are energy and oxygen and water to maintain the environment in which they live. Need the essential nutrients that they cannot make themselves. Each gene is a blueprint that directs the production of a piece of protein machinery, often an enzyme: helps the cells work, genes also provide the instructions for all of the structural components cells need to survive. Ge(cid:374)es affe(cid:272)t the (cid:271)ody"s ha(cid:374)dli(cid:374)g of (cid:374)utrie(cid:374)ts: certain variations affect the absorption, use or excretion of nutrients. Cells are organized into tissues that perform specialized tasks. Tissues in turn, group to form whole organs. Some body functions are performed by several organs working together as a body system.