Label Cell A Label Cell B What are

• • • Label Cell A Label Cell B What are the “raw materials” of photosynthesis? What are the 2 jobs of the guard cell? Where do organic molecule store their energy?

Guard Cells • Open stomata to allow gas exchange • Close stomata to regulate water loss

Cellular Respiration

Organic Molecules • Organic molecules contain BOTH carbon and hydrogen • Organic molecule store energy in the bonds between their atoms • Organic molecules store chemical energy. • All organisms need organic molecules to make energy.

Where do Organic Molecules come from?

Where do Organic Molecules come from? • Producers (autotrophs) make their own organic molecules using the sun. • Consumers (heterotrophs) must get their organic molecules from other organisms

• ALL living things release energy from organic molecules during cellular respiration. • Cellular respiration is the process by which organisms use oxygen and organic molecules to make ATP energy. • Carbon dioxide and water are released as waste products

• Cellular respiration takes place in the mitochondria of every single cell. enzymes

• Cellular respiration takes place in the mitochondria of every single cell. enzymes Oxygen + glucose ----> Carbon dioxide + water + ATP

• Cellular respiration takes place in the mitochondria of every single cell. enzymes Oxygen + glucose ----> Carbon dioxide + water + ATP O 2 + C 6 H 12 O 6 ----> CO 2 + H 2 O + ATP

ATP

• Photosynthesis converts light energy into chemical energy (glucose). • Cellular respiration converts chemical energy into ATP energy. • ATP is the energy used to power all cell activities