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Metabolism unit
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| Term | Definition |
|---|---|
| Metabolism | The body's use of molecules for energy and growth. |
| Glucose | A molecule that organisms can use to elease energy, and that is made of carbon, hydrogen, and oxygen atoms. |
| Oxygen | A molecule that orgainsms get from the air or water around them and use to release energy |
| Amino Acids | Molecules that are the building blocks of proteins |
| system | A set of interacting parts forming a complex whole |
| digestive system | the body system that takes in food and breaks it down |
| respiratory system | the body system that takes in oxygen and releases carbon dioxide |
| Circulatory system | the body system that transports moleclues to and from all cells of the body |
| energy | the ability to make things move or change |
| protein | a category of large molecules that perform important functions inside living things |
| starch | a type of energy source molecule made of many glucose molecules connected together |
| tissue | a group of cells that work together to perform a specific job |
| heart | muscular organ that pumps blood throughout the body |
| arteries | blood vessels that carry oxygen rich blood from the heart to the body |
| veins | blood vessels that return oxygen poor blood back to the heart |
| capillaries | tiny blood vessels where the exchange of oxygen, carbon dioxide, nutrients and waste occurs between the blood and the cells |
| circulation | movement of blood through the heart and blood vessels, delivering oxygen and nutrients to the body, and removing waste products |
| lungs | main organ of the repiratory system where gas exchange occurs |
| diaphgram | muscular structure that seprates the chest cavity from the abdominal cavity and plays a key role in breathing |
| alveoli | tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide take place |
| ingestion | process of taking food into the body |
| digestion | process of breaking food down into its smallest parts |
| respiration | process by which oxygen is taken in and carbon dioxide is released by an organism |
| excretion | to remove waste |
| homeostasis | the body's ability to maintain a stable internal envirmant, even when external conditions change |
| voluntary | you need to decide on the action (think it) before it happens, done by choice |
| involuntary | happens without you thinking about doing it, occurs automatically |
| smooth muscle | type of muscle found it internal organs that operates involuntarily (you don't have to think about it, it just happens). Example the muscle that makes up the esophagus |
| cardiac muscle | type of muscle tissue that makes up the heart and operates involuntarily (you don't have to think about it for it to happen). |
| cellular respiration | the chemical reaction between oxygen and glucose that releases energy into cells |
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