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Biochemistry Part 2
Biochemistry Part 2 - The Human Body
| Question | Answer |
|---|---|
| Digestive System | The body system that breaks down food into molecules that serve as fuel for all organisms. Includes the mouth, stomach, and intestines. |
| ingest | To take into the body. |
| Respiratory System | The body system that is responsible for gas exchange in organisms. Includes the lungs. |
| gas exchange | Trading oxygen and carbon dioxide. |
| Circulatory System | The body system that delivers nutrients and oxygen to cells, and takes wastes like carbon dioxide away from cells. Includes the heart and blood vessels. |
| transport | To move or to carry from one place to another. |
| Nervous System | The system that coordinates and controls the body's response to changes in the environment. Includes the brain, spinal cord, and nerves. |
| stimulus | A change in the environment |
| response | The way your body reacts to a change in the environment. |
| environment | An organism's surroundings. |
| Endocrine System | The body system that produces chemical messengers called hormones, which help to coordinate and control the body's response to changes in the environment. Includes glands. |
| secretes | To release or give off. |
| hormones | Chemical messages released from glands. Carried throughout the body by blood. |
| regulation / homeostasis | All body systems interact (work together) to maintain an internal (inside) balance and keep an organism healthy. |
| enzyme | Made by living things. Speeds up a chemical reaction. |
| diffusion | A process where molecules pass through a membrane. |
| gland | an organ that makes enzymes or hormones that are secreted into the body |
| capillaries | small blood vessels that allow for the diffusion of materials into and out of the cells. |
| feedback mechanisms (systems) | a cycle that receives feedback (information) to keep the body's internal environment within certain limits (Ex: blood sugar level) |
| via | through or by |