Watch the time lapse video and answer the questions. Cell Processes Watch the time lapse video and answer the questions. What were your observations? In order for the changes you observed to occur, what has to happen to the cells in your body?

Your cells are constantly working to perform many activities such as getting food, removing wastes, growing, reproducing, and making new materials.

Particles naturally want to move from where they are more crowded to where they are less crowded.

A. Diffusion: where food, oxygen, water, & other materials enter & leave the cell from high concentrations to low concentrations osmosis: diffusion of water through the cell membrane.

Diffusion or Osmosis????? A. B.

passive transport: movement of materials by diffusion w/o energy active transport: movement of materials against the normal direction of diffusion large particles enter a cell through the process of endocytosis and exit from the cell in the process called exocytosis

CO2 plus H20 plus Sunlight/Energy Add them up, what do you get B. Photosynthesis: process by which plant cells capture light energy from the sun & change it into food which becomes a source of energy for the producers and for the consumers that eat the producers. Sunlight + Water + Carbon Dioxide = C6H12O6 (Glucose) and Oxygen Remember: CO2 plus H20 plus Sunlight/Energy Add them up, what do you get Food and Air to breathe.

1. Cellular respiration: Once food is obtained in animal cells and made in plant cells, it must be broken down to release the chemical energy. This process is called Cellular Respiration. Cellular respiration occurs in the Mitochondria. C6H12O6 (Glucose) + Oxygen = Carbon Dioxide, Water, and Energy (ATP) Remember: Food and Oxygen is good to me it gives me CO2, Water and ATP

Fermentation: the breakdown in the absence of oxygen