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week 14
SCI 221
| Question | Answer |
|---|---|
| Q: Where does most nutrient absorption occur? | A: Small intestine. |
| Q: What enzyme breaks down starch? | A: Amylase. |
| Q: What is peristalsis? | A: Wave-like contractions moving food through the GI tract. |
| Q: What organ produces bile? | A: Liver. |
| Q: What muscle is responsible for breathing? | A: The diaphragm. |
| Q: What gas do we exhale? | A: Carbon dioxide (CO₂). |
| Q: What is the largest lymphatic organ? | A: The spleen. |
| Q: What is innate immunity? | A: Immediate, non-specific defense. |
| Q: What protein carries oxygen in RBCs? | A: Hemoglobin. |
| Q: What vessels carry blood away from the heart? | A: Arteries. |
| Q: What receptors detect smell? | A: Olfactory receptors. |
| Q: What does the sympathetic nervous system do? | A: “Fight or flight” response. |
| Q: What triggers an action potential? | A: Reaching threshold (-55 mV). |
| Q: What is the basic unit of the nervous system? | A: The neuron. |