Today 1 Finish photosynthesis simulation lab in lab

Today: 1. Finish photosynthesis simulation lab (in lab notebooks!) 2. What happens when you exercise? – Demo 3. Notes 4. Graphic Organizer

Answer the following questions: http: //www. saddleworth. oldham. sch. uk/science/si mulations/waterweed. htm 1. What is your control in each simulated experiment? 2. How did your variables affect photosynthesis? Why? 3. Explain how you think another variable that you are unable to test in this simulation would affect photosynthesis. Why? Explain in full sentences!

Cellular Respiration

What do all living things need? ENERGY P P P

Ø Is the ATP made during photosynthesis enough energy to make everything in our bodies happen?

Remember…? Ø When the Energy Producing Reaction of photosynthesis makes ATP, what is it used for?

Remind me. Ø How heterotrophs get energy? Ø What type of food gives heterotrophs the most energy?

Cellular Respiration Ø The process by which the chemical energy of food molecules is released, and captured in the form of ATP

Where does Cell Respiration happen? Ø In an organelle found in all cells, the mitochondria

Cell Respiration Equation Ø Inverse of the Photosynthesis Equation! C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O

Cellular Respiration releases ENERGY! Ø One cell respiration reaction usually leads to 36 -38 ATP molecules! PPP PPP PPP PPP PPP PPP PPP PPP PPP PPP

Cellular Respiration Ø Just like photosynthesis, cellular respiration has many steps. Ø The equation just sums up what goes in, and what comes out.

What happens when there’s no Oxygen? ? X C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + 36 PPP

Anaerobic Respiration Ø Happens when there is not enough oxygen for cellular respiration to happen properly ØProduces Lactic Acid in muscle cells

Anaerobic Respiration Ø Only produces 2 ATP for every reaction! ØNot enough to support life! ØThis only happens in an emergency! PPP