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1. Define passive transport and explain diffusion and osmosis. 2. Explain active transport and explain endocytosis and exocytosis. 3. Describe how enzymes affect speed of chemical reactions. List three enzymes and the reactions they facilitate. 4. Write and explain the summary equation for Cell Respiration. 5. Write and explain the summary equation for Photosynthesis.|

Ask by Ryan Carroll. in the United States
Mar 15,2025

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1. **Passive Transport** involves moving substances across a cell membrane without energy, using diffusion (molecules moving from high to low concentration) and osmosis (water moving through a membrane). 2. **Active Transport** uses energy to move substances against their concentration gradient. **Endocytosis** is when cells engulf substances, and **Exocytosis** is when cells release materials. 3. **Enzymes** speed up chemical reactions by lowering activation energy. Examples include: - **Amylase** breaks down starch. - **Lipase** digests fats. - **Protease** breaks down proteins. 4. **Cell Respiration** equation: Glucose + Oxygen → Carbon Dioxide + Water + ATP. 5. **Photosynthesis** equation: Carbon Dioxide + Water + Light Energy → Glucose + Oxygen. These summaries cover the key concepts without additional details.

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Beyond the Answer

Did you know that passive transport is not just a biological term but also a fun fact about how your body functions daily? For instance, when you breathe, oxygen diffuses into your bloodstream through your lungs without energy input, just like how chocolate melts into hot milk, spreading evenly—it’s all about gradients! Now, when it comes to active transport, think of it as your body's personal trainer! It requires energy to move substances against their concentration gradient, like moving a heavy suitcase uphill. Endocytosis and exocytosis are like dramatic entrances and exits, where cells engulf materials to bring them in or package them up to send them out, ensuring they stay fit and functional!

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