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Human Anatomy
| Question | Answer |
|---|---|
| What is homeostasis? | Homeostasis is the maintenance of a stable internal environment in the body despite external changes. |
| What is the main difference between negative and positive feedback loops? | Negative feedback loops reverse changes to maintain stability, while positive feedback loops amplify changes. |
| What are the four major organic macromolecules in the body? | Carbohydrates, lipids, proteins, and nucleic acids. |
| List three types of carbohydrates and give one example for each. | Monosaccharide (glucose), disaccharide (sucrose), polysaccharide (starch). |
| How does protein shape influence its function? | A protein’s specific shape determines its ability to bind and function correctly; denaturation alters function. |
| What is the difference between DNA and RNA? | DNA is double-stranded and stores genetic information; RNA is single-stranded and helps in protein synthesis. |
| What is the function of enzymes in cell metabolism? | Enzymes speed up chemical reactions by lowering activation energy. |
| What are the four types of tissue in the human body? | Epithelial, connective, muscle, and nervous tissue. |
| What is the clinical significance of the cribriform plate of the ethmoid bone? | It allows the passage of olfactory nerves; fractures can lead to cerebrospinal fluid leakage or infection. |
| Define articulation. | Articulation is the site where two or more bones meet to form a joint. |
| What are the three key functions of skeletal muscle tissue? | Movement, posture maintenance, and heat production. |
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