1. Features of Life and the Cell
Chapter #2
Features of Life and the Cell

2. 8 features of Living Things
Chapter 2.1 Notes
8 features of Living Things
Reproduce
Sexual- 2 parents
Asexual- 1 parent
Grow- increase in size
Develop- grow parts
Need Food
Herbivores- plant eaters
Carnivores-meat eater
Omnivores- eat both plants and animals
Producers- Green plants

3. Use Energy
Cellular respiration food is broken down and energy is given off
C6H12O6 + 6O CO2 + 6H2O
Sugar + oxygen = Carbon dioxide + water
Made of cells
Respond
Are adapted to their environments

4. 6 elements that make up 97% of living things
Oxygen
Carbon
Hydrogen
Nitrogen
Phosphorus
Sulfur

5. The Cell Theory 1665- Robert Hooke “Cells”
19th Century Schleiden and Schwann came up with the cell theory.
All living things are made of cells
Cells are the basic units of structure and function
All cells come from other cells
Robert Hooke

6. Cell parts (organelles)
Chapter 2.2 Notes
Cell parts (organelles)
Cell membrane (door to cell) gives cell shape and holds the cytoplasm. Allow things in and out of the cell.
Nucleus (brain) controls cells activities.
Nuclear membrane (door to nucleus) surrounds nucleus lets things in and out of nucleus.
Golgi apparatus (packs) packages and stores chemicals.
Nucleolus- makes ribosomes.
chromosomes contains DNA information.
Cytoplasm (where chemical reactions occur) clear, jellylike material between the cell membrane and the nucleus.

7. Endoplasmic Reticulum- ER- (roads) moves materials around cell.
Ribosomes- make protein.
Mitochondria (powerhouse) make energy.
Vacuole (storage) liquid-filled space for storage.
Centrioles (reproduction) used during reproduction.
Chloroplast- (make food) have green pigment called chlorophyll. Plants only.
Cell wall (support) thick outer covering that protects and supports plants. Plants only.

8. Animal Cell 12 cell parts 8. 9. 10. 7. 2. 5. 4. 12. / chromosomes 6.
11.vacuole 2. 5.
/ chromosomes 6.
/ nuclear membrane 3. 4.
12.

9. Plant Cell
14 cell parts

10. 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.

11. Osmosis- the diffusion of water.
The cell membrane has pores.

12. Levels of Organization
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.

13. “Cell” March 6, 2007. http://sun. menloschool
“Living things”. March 6,
“Food Chain”. March 6,
“Diffusion”. March 8,
“osmosis”. March 8,
“Plant Cell”. March 8,
“Level of organization”. March 8,