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Transcript
Study Guide – Cells Use the words from the box below to fill in the blanks. cell osmosis cellular respiration organ nucleus organelles organ system diffusion cytoplasm tissue 1. Osmosis is the diffusion of water across a membrane. 2. Organelles are structures that perform specific functions in a cell. 3. Diffusion is a process that spreads substances through a gas or liquid. 4. The cytoplasm is a thick fluid between the nucleus and cell membrane. 5. The nucleus is the cell part that directs the activities of the cell. 6. The process of breaking down glucose in cells is called cellular respiration. 7. A group of related organs that work together to perform a specific function is an organ system. 8. A cell is the basic unit that makes up living things. 9. A group of similar specialized cells is a tissue. 10. An organ is a group of related tissue that performs a specific function. 11. What are four reasons that cells need energy? Cells need energy for movement, cell division, making proteins, and moving materials (waste). 12. What happens in cellular respiration? In cellular respiration glucose and oxygen are changed into carbon dioxide (gas) and water. This releases a lot of energy that is trapped in ATP (Adenosine TriPhosphate molecule). 13. Name the parts of cell organization in the correct order. (Organism, organs, tissues, cell, and organ systems) Organism Cell Tissue Organ Organ system 14. Be sure to know what active and passive transport looks like. Be able to explain the difference. (Look on page 19 in your science book.) 15. Label the parts of the cell.