Cells & Cell Structures 9th Grade Science 2012. Cell Structures Animal Cell Plant Cell.
Structures within cells power point
Transcript of Structures within cells power point
Mitochondria
• Releases energy from food
The Power Plant• where the factory’s power comes from
Ribosomes
• Produces proteins used by the body for growth and repair
Microscopic factories• Produce products
Lysosomes
• Gets rid of wastes from the cell
Garbage disposal units• where wastes and other unwanted materials
are collected and broken down
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
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
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
Cell Membrane
• Regulates what enters and leaves the cell
Shipping and Receiving• controls what comes in and what goes out in
the factory
Vacuole
• Stores nutrients, water and waste
Warehouse• where materials are stored
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
Chloroplast(Plant cells only)
• Photosynthesis takes place in chloroplasts
Solar panels • Use light from the sun to make energy
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’.
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.
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.