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Human Physiology
chapter 1-6
| Term | Definition |
|---|---|
| Homeostasis. | Stability, balance, or equilibrium inside a cell or the body. It is an organism’s ability to keep a constant internal environment. The body's "self-regulating system." |
| Feedback | The process the body uses to maintain balance. It involves a cycle where the body detects a change and then makes adjustments to return to a stable state. There are two types of feedback: Negative and Positive |
| Carbohydrates | Organic compounds made up of carbon, hydrogen, and oxygen. They include sugars, starches, and fibers, and are a primary source of energy for the body. They can be simple (like glucose) or complex (like starch). |
| Amino Acids | The building blocks of proteins. They contain carbon, hydrogen, oxygen, and nitrogen atoms. |
| Diffusion | The process by which particles move from an area of high concentration to an area of low concentration. This movement happens naturally until equilibrium (balance) is reached. |
| Epidermis | The outermost layer of your skin. It acts as a protective barrier, keeping harmful things out and moisture in. Think of it as the skin's "shield." |
| DNA | A Molecule that carries your genetic information. It's like a set of instructions that tells your body how to grow, develop, and function. You can think of it as a blueprint or recipe for life! |
| RNA | A molecule that helps turn the instructions in DNA into proteins. It acts like a messenger, carrying information from DNA to where proteins are made in the cell. Think of it as a "helper" copying and delivering DNA's instructions! |
| Membrane | Thin layer that covers or protects something. In cells, it acts like a "gatekeeper," controlling what enters and exits the cell or organelle. It's like a protective barrier or wall! |
| Ligaments | Strong, stretchy bands of tissue that connect bones to other bones. They help stabilize and support joints, like the "ropes" that hold your bones together. |
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