2. * Substance moves into cells (water, gases, food) * Substances move out of cells (waste, excess water, gases) * Cell membrane controls movement

3. * Substances that allow some materials to flow through, but not other substances * Cell membrane is semi-permeable * Allows oxygen and water to pass through but not large proteins

4. * Movement of substances through the cell without use of energy * Transport water, oxygen, gases * Diffusion * Movement from crowded area to less crowded * Examples: ammonia, burnt toast, perfume, cookies * Osmosis * Diffusion of water through semi-permeable membrane * Crowded to less crowded * Example: Wilted plant will become firm again if given water

6. * Endocytosis * Cell uses energy to surround particle into vesicle * Amoeba- capture food particles * Exocytosis * Vesicles form around particles and push towards cell membrane to release * Multi-cellular

7. * In plants * Take sunlight and CO 2 and water * Convert to sugars and oxygen * Happens in the chloroplasts * Contain chlorophyll (green pigment) * Sugar called glucose * Formula: 6CO 2 + 6H 2 O + energy C 6 H 12 O 6 + 6O 2

8. * Organisms that eat plants get the glucose that was stored in the plant * Broken down sugar= ATP * Breaking down food into ATP is cellular respiration

9. * Begins in cytoplasm * Glucose broken down into 3-carbon molecules * Oxygen enters cell and travels to mitochondria * 3-carbon molecules break down releasing energy that is taken by ATP * CO 2, water, and ATP released * C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + ATP

11. * Anaerobic- without oxygen * Produces some ATP * Use during hardcore exercise * Produce lactic acid * Fermentation is an example (bread) * Aerobic- with oxygen

12. * photosynthesis * glucose broken down * light energy * energy released * respiration * chloroplast * glucose created * mitochondrion * energy stored * carbon dioxide