Cellular Respiration What is respiration What is respiration

Cellular Respiration

What is respiration?

What is respiration? • When we breathe oxygen into our lungs and release carbon dioxide. CO 2 (Carbon Dioxide) Oxygen

Where does the Oxygen go?

Where does the Oxygen go? 1. Oxygen diffuses into the blood.

Where does the Oxygen go? 1. Oxygen diffuses into the blood. 2. Blood travels around the body.

Where does the Oxygen go? 1. Oxygen diffuses into the blood. 2. Blood travels around the body. 3. Oxygen diffuses into the cells.

Plants also respire! They take in oxygen and “breathe” out CO 2

What happens in the cell? • Food and oxygen combine to form energy. • Sugar + Oxygen ENERGY + Carbon Dioxide + Water + + +

What happens in the cell? • Food and oxygen combine to form energy. • Sugar + Oxygen ENERGY + Carbon Dioxide + Water C 6 H 12 O 6 + O 2 ATP + CO 2 + H 2 O + + +

Where does cellular respiration happen in the Cell? • Cellular respiration happens inside the mitochondria in the cell.

Respiration in the Cells • Cellular respiration - when our cells use oxygen to break apart sugar in order to release energy (ATP). • It is the opposite reaction of Photosynthesis (Photosynthesis backwards is Cellular Respiration!)

Photosynthesis sugar (food) + oxygen _______ + _______ Sunlight + carbon dioxide + water Cellular Respiration Sugar (food) + oxygen _______ + _______ energy + carbon dioxide + water _______ + _____

Photosynthesis Sunlight + carbon dioxide + water Energy + CO 2 + H 2 O Same!!! sugar (food) + oxygen Glucose + O 2 Cellular Respiration Sugar (food) + oxygen Glucose + O 2 energy + carbon dioxide + water ATP + CO 2 + H 20

Photosynthesis sugar (food) + oxygen _______ + _______ Sunlight + carbon dioxide + water Cellular Respiration Sugar (food) + oxygen _______ + _______ energy + carbon dioxide + water _______ + _____

Photosynthesis Sunlight + carbon dioxide + water Energy + CO 2 + H 2 O sugar (food) + oxygen Glucose + O 2 Cellular Respiration Sugar (food) + oxygen Glucose + O 2 energy + carbon dioxide + water ATP + Same!!! ATP and Sunlight are just different forms of Energy CO 2 + H 20

Do plant cells do cellular respiration too? • YES!! Why? – Plants produce glucose (energy storing sugar) through photosynthesis, but they still need to make that sugar usable for the cell. – They use the process of cellular respiration to make usable energy (ATP) for the cell. – This process also happens in the mitochondria of the plant cells.