Structures within cells power point
- 1. Structures within cells Cells are like factories!
- 2. Mitochondria • Releases energy from food The Power Plant • where the factory’s power comes from
- 3. Ribosomes • Produces proteins used by the body for growth and repair Microscopic factories • Produce products
- 4. Lysosomes • Gets rid of wastes from the cell Garbage disposal units • where wastes and other unwanted materials are collected and broken down
- 5. Endoplasmic Reticulum • Forms pathways that allow materials to move quickly and easily through the cell • Also involved in packaging of proteins to be “shipped” to the Golgi body • Makes lipids (fats) and breaks down harmful substances The Assembly Line • where products are made and packaged/substances are broken down
- 6. Cytoplasm • A watery, jelly-like mixture that contains many smaller parts where the work of the cell takes place Factory Floor • space within the factory where products are made and business is conducted
- 7. Nucleus • The control centre of the cell. • It controls all the chemical reactions in the cell, how the cell develops and how it reproduces Main Office • the control center of the factory
- 8. Cell Membrane • Regulates what enters and leaves the cell Shipping and Receiving • controls what comes in and what goes out in the factory
- 9. Vacuole • Stores nutrients, water and waste Warehouse • where materials are stored
- 10. Cell wall (Plant cells only) • The cell’s skeleton. • It helps the cell to stay upright and keep its shape The walls of the factory • Gives the factory structure
- 11. Chloroplast (Plant cells only) • Photosynthesis takes place in chloroplasts Solar panels • Use light from the sun to make energy
- 12. Animal Cell
- 13. Plant Cell
- 14. Membrane at work experiment 1. Make a concentrated salt solution by adding a tablespoon of salt to 250mL of distilled water. 2. Label the two glass jars ‘salt water’ and ‘distilled water’. 3. Measure out 200mL distilled water and pour it into the container labelled ‘distilled water’. 4. Measure out 200mL of the salt water and add it to the container labelled ‘salt water’.
- 15. 5. Carefully remove the eggs from the vinegar and rinse them. Pat dry with paper towel. 6. Use a balance to determine the mass of each egg and record the mass in a table like the one shown in the Results section. 7. Place one egg in each container of water and put on the lid or cover with plastic wrap.
- 16. 8. Each day, for the next 3 days, measure and record the mass of the egg. 9. Predict what you think will happen to the eggs. Record your prediction. 10. On day 3 measure and record the volume of the water remaining in each of the containers.
- 17. Safety • Be responsible and follow instructions carefully • Ask for help if you need it