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Transcript
Unit 4: Cells and Transport Short Answer Five of the following will be chosen for the Short Answer portion of the exam. 1. What do all cells have in common? 2. How can you tell the difference between a plant and an animal cell? List at least 3 differences. 3. Fill in the following table: Organelle Mitochondria Function Contains the genetic information, DNA Uses sunlight’s energy to make food Ribosomes 4. Who proposed endosymbiotic theory? What did this theory explain. 5. How is passive transport different than active transport? 6. What are the types of passive transport? Give descriptions of each. 7. The concentration of glucose in a healthy red blood cell is about 2%. Glucose cannot pass through the membrane, but water and urea can. If the blood cell is placed in an environment with 25% sucrose and 75% water. In which direction will the water flow? Will the cell shrink, burst, or stay the same? Would this be an isotonic, hypotonic, or hypertonic scenario? KEYWORDS THAT SHOULD BE INCLUDED IN 3-4 SENTENCE RESPONSES. Prokaryote Cell membrane Vacuole Osmosis Eukaryote Phospholipid bilayer Cytoplasm Facilitated diffusion Endosymbiotic theory Organelle Nucleus Chloroplast Endoplasmic reticulum Lysosome Mitochondria Cell wall Ribosome Passive transport Diffusion Active transport Protein pump Endocytosis Exocytosis
