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science ch 4
| Term | Definition |
|---|---|
| Metabolism | The body uses of molecules for energy and growth |
| Glucose | A molecule that organisms can use to release energy and that is made of carbon hydrogen and oxygen |
| oxygen | a molecules that organisma get from the air or water around them |
| Amino acids | Molecules that are building blocks of protein |
| system | a set of interacting parts forming a complex whole |
| digestive system | takes food and brakes it down |
| Respiratory system | takes oxegen in and releases CO2 |
| Circulatory system | transports molecules to and from them cells of the body |
| Energy | ability to make things move or change |
| Protein | category of molecules that preform important living things funcitions |
| Starch | energy storage molecules made of glucose molecules connected to together |
| Tissue | group of cells working together to preform different jobs |
| Heart | Muscular organ that pumps blood throughout the body |
| veins | blood vessels that return oxygen poor blood back to the heart |
| capillaries | any of the fine branching blood vessels that form a network between the arterioles and venules. |
| Circulation | the continuous, orderly movement of blood through the heart and blood vessels, serving as the body's primary transport system for oxygen, nutrients, hormones, and waste products. |
| lungs | the continuous, orderly movement of blood through the heart and blood vessels, serving as the body's primary transport system for oxygen, nutrients, hormones, and waste products. |
| Diaphragm | a large, dome-shaped sheet of internal skeletal muscle that acts as the primary muscle of respiration |
| Alveoli | any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange. |
| Ingestion | the process of taking food, drink, or another substance into the body by swallowing or absorbing it. |
| Digestion | the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body. |
| Respiration | a fundamental biological process in which living cells convert nutrients (like glucose) into usable energy (ATP) while releasing waste products. |
| Excretion | In living organisms and cells) the process of eliminating or expelling waste matter. |
| Homeostasis | a fundamental biological process in which cells of an organism obtain energy by breaking down organic compounds (such as glucose). |
| Voluntary | describes actions, decisions, or services undertaken of one’s own free will, without external compulsion, coercion, or requirement |
| Involuntary | done without will or conscious control. |
| Smooth Muscle | a type of involuntary, non-striated muscle tissue found in the walls of hollow organs, blood vessels, and various tracts throughout the body. |
| Cardiac muscle | a specialized, involuntary, and striated muscle tissue found exclusively in the walls of the heart. |
| Cellular Respiration | the fundamental metabolic process by which cells break down glucose and other organic molecules in the presence of oxygen (aerobic) to produce energy in the form of adenosine triphosphate (ATP), releasing carbon dioxide and water as waste products |
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