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Chapter 2.1 Notes8 features of Living Things
• ReproduceSexual- 2 parentsAsexual- 1 parent2. Grow- increase in size3. Develop- grow parts4. Need FoodHerbivores- plant eatersCarnivores-meat eaterOmnivores- eat both plants and animalsProducers- Green plants
5. Use Energy
Cellular respiration food is broken down and energy is given off
• C6H12O6 + 6O2 6 CO2 + 6H2O
Sugar + oxygen = Carbon dioxide + water
6. Made of cells
7. Respond
8. Are adapted to their environments
6 elements that make up 97% of living things
1. Oxygen
2. Carbon
3. Hydrogen
4. Nitrogen
5. Phosphorus
6. Sulfur
The Cell Theory
• 1665- Robert Hooke “Cells”
• 19th Century Schleiden and Schwann came up with the cell theory.
1. All living things are made of cells
2. Cells are the basic units of structure and function
3. All cells come from other cells
Robert Hooke
Chapter 2.2 NotesCell parts (organelles)
1. Cell membrane (door to cell) gives cell shape and holds the cytoplasm. Allow things in and out of the cell.
2. Nucleus (brain) controls cells activities.3. Nuclear membrane (door to nucleus) surrounds
nucleus lets things in and out of nucleus.4. Golgi apparatus (packs) packages and stores
chemicals.5. Nucleolus- makes ribosomes.6. chromosomes contains DNA information.7. Cytoplasm (where chemical reactions occur)
clear, jellylike material between the cell membrane and the nucleus.
8. Endoplasmic Reticulum- ER- (roads) moves materials around cell.
9. Ribosomes- make protein.10.Mitochondria (powerhouse) make energy.11.Vacuole (storage) liquid-filled space for
storage.12.Centrioles (reproduction) used during
reproduction.13.Chloroplast- (make food) have green pigment
called chlorophyll. Plants only.14.Cell wall (support) thick outer covering that
protects and supports plants. Plants only.
10.
12.
11.vacuole
4.
9. 8.
1.cell
2.
5./ chromosomes 6.
/ nuclear membrane 3.
7.
Animal Cell
12 cell parts
Chapter 2.3 Notes
• Diffusion- is the movement of a substance from a large (high) amount of it to where there is a small (low) amount of it.
• Cell- basic unit of life• Tissue- group of cells working together.• Organ- group of tissues.• Organ system- group of organs working together.• Organism- group of organ systems working together.
Levels of Organization
• “Cell” March 6, 2007. http://sun.menloschool.org/~cweaver/cells/animalcell• “Living things”. March 6, 2007.
http://www.edu.pe.ca/journeyon/resources_pages/lesson_plans/lesson_plans_1-3/living_things/images/living_things_000.jpg
• “Food Chain”. March 6,2007. http://www.biology-resources.com/images/interdependence-of-living-things.jpg • http://www.edu365.cat/aulanet/comsoc/persones_tecniques/Robert_Hooke_archivos/Robert_Hooke.jpg• “Diffusion”. March 8, 2007.
http://images.google.com/imgres?imgurl=http://epswww.unm.edu/coursinf/eps462/graphics/diffusion.gif&imgrefurl=http://epswww.unm.edu/coursinf/eps462/page4.htm&h=398&w=518&sz=17&hl=en&start=2&tbnid=1cx-DpQrcDhM0M:&tbnh=101&tbnw=131&prev=/images%3Fq%3Ddiffusion%26gbv%3D2%26svnum%3D10%26hl%3Den
• “osmosis”. March 8, 2007. http://images.google.com/imgres?imgurl=http://www.biologycorner.com/resources/osmosis.jpg&imgrefurl=http://www.biologycorner.com/bio1/diffusion.html&h=425&w=605&sz=102&hl=en&start=1&tbnid=AqALyzRVcodMuM:&tbnh=95&tbnw=135&prev=/images%3Fq%3Dosmosis%26gbv%3D2%26ndsp%3D20%26svnum%3D10%26hl%3Den%26sa%3DN
• “Plant Cell”. March 8, 2007. http://micro.magnet.fsu.edu/cells/plants/images/plantcell450.jpg
• “Level of organization”. March 8, 2007. http://www.learner.org/channel/courses/essential/life/images/show1.levels.jpg
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