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Air #1 • Conclusion – I thought that __________ ____________. I found out that ______ _____________. My observations showed ________________________. The reason this happened was ______ ________________. In the future I would like to try / I still wonder________ _______________________. Cells Chapter 1 Cells • Question – What do cells look like? • Hypothesis – I think cells _________. • ResultsType of cell Description Picture • Conclusion – My hypothesis was ______ ___________________. I learned _____ _____________________. My observations were __________________ _____________________. I think this is because _______________________. I still wonder _______________________ ___________________________. Cell Theory • What scientists know about cells 1. All living things are made up of one or more cells 2. The cell is the basic unit of a living organism 3. Cells come from other cells • What Cells Do All living things have basic needs 1. Energy source 2. Support and protection 3. Growth and reproduction • 2 Types of Organisms – Single Celled – one cell Multicellular – many cells • Plants and animal cells do some things differently (plants use sunlight to MAKE energy, animals EAT to get energy) Comparing Plant and Animal Cells Nucleus (DNA) Cell Wall Large Vacuoles Cell Membrane Plant Cell Cytoplasm ribosomes Chloroplast Golgi Apparatus Box like Mitochondria Endoplasmic Reticulum Small Vacuoles Animal Cell Different Shapes Cellular Respiration Water Oxygen Mitochondria Energy Glucose Carbon Dioxide Cells and Energy • Cells use energy for – movement – making proteins – dividing (make new cells) – transport of materials Moving Materials Passive Active •Uses No Energy •Uses Energy •High Concentration to low •Low Concentration to high concentration (crowded to not crowded) •Diffusion – happens in gas or liquid •Osmosis – things dissolved in water (not crowded to crowded) Diffusion Activity • What pattern did you notice? • Why did people closest smell the odor first? • What does that tell you about how the smell traveled? • Explain diffusion in your own words. Cell Organization • Cell • Tissues – a group of similar cells Ex) skin tissue • Organ- a group of similar tissues working together to do a job Ex) heart, kidney, lungs • Organ System – a group of related organs working together to do a job Ex) muscular system, digestive System • Organism – a living thing Ex) animal, plant, human Cells Video Quiz