Bell Ringer: Why do leaves change color in the fall? Read A most brilliant color scheme and Why Leaves Change Color on my weebly under the Photosynthesis tab. Answer the following question in paragraph form (you may have to write more than one paragraph) Question: How do pigments, sunlight, and temperature affect the changing of leaf colors in the fall?

Begin Cellular Respiration Lab - Keep your station clean - This is the START of the lab. - When you get to the point that says “set aside for 30 minutes” return to your seats

Cellular Respiration What is the Cellular Respiration Equation? State the reactants and products. Where does cellular respiration take place?

Connections: Photosynthesis & Cellular Respiration

Cellular Respiration Purpose: 1. Energy is extracted from glucose & broken down into simpler compounds. 2. This energy is stored as ATP.

Why is my body like a burning fire? How do we make beer and wine?

Exergonic & Catabolic {Gives off energy & breaks down molecules} Cellular Respiration Process Exergonic & Catabolic {Gives off energy & breaks down molecules} C6H12O6 + 6O2 --->6CO2 + 6H2O + energy

Anaerobic Respiration Description: Respiration that occurs without oxygen 1. Takes place in the cytoplasm of cells. 2. There is only a partial breakdown of the glucose molecules brought in. Results: 1. There is a net gain of 2 molecules of ATP perglucose molecule taken apart. 2. In humans Anaerobic Respiration is the first step of a two step process.

Anaerobic Respiration In other organisms, anaerobic respiration is their only method of making energy. They will convert the pyruvate made into a waste product and excrete it. Waste products made include alcohol and lactic acid. This process is known as fermentation.

Fermentation ENDERGENIC reaction, yielding a net gain of 2 ATP per molecule of Glucose Once sugar content is used up, fermentation stops, alcohol level is fixed.

Lactic Acid Pathway Formed in animal muscle cells when O2 is scarce or absent (When your muscles burn) Produced when strenuous exercise exceeds immediate demands of muscle tissues

Aerobic Respiration = 3 Stages ALL occur in the cristae folds of the mitochondria. Folds allow more energy to be made. Oxidation of Pyruvate Kreb’s Cycle Electron Transport Chain

Aerobic Respiration Definition- enzyme controlled series of chemical reactions resulting in the net synthesis of 36 ATP molecules from the oxidation of glucose in the presence of free oxygen.

Aerobic Respiration Process: C6H12O6 + 6 O2 ---> 6 H2O + 6 CO2 + 36 ATP 1. The Anaerobic phase (glycolysis) is the first step of Aerobic respiration (2 ATP made) 2.The second (Aerobic) phase is known as the Krebs Cycle (2 ATP made) 3. The third phase, which produces the most energy, is called the electron transport chain. (32 ATP made)

Water Anaerobic Carbon Dioxide – used 2x Lactic Acid Cellular Respiration Fermentation Aerobic Alcohol ATP – used 3x

Finish Lab - Write results on front board. -CLEAN UP AFTER YOURSELF. You cleanliness factors into your grade. - Complete analysis and write conclusion (minimum of 5 sentences) - Hand in when finished.

https://www.youtube.com/watch?v=qoxY0z8ukUQ

Why is this process important to all living organisms?   Photosynthesis Respiration Why is this process important to all living organisms? Write the Equation (using words) Write the Equation (scientific formulas) List the reactants of each process List the products of each process What is the main type of energy used or generated from each process? In which cell organelle does each process occur? Does the process require light to occur?

Examine the chart and determine how these two processes are related Examine the chart and determine how these two processes are related. Justify your answer using the data you provided in the chart.   2. Autotrophic organisms could survive on earth easily without heterotrophic organisms, such as humans. Humans could not survive on earth without autotrophic organisms. Defend this claim by drawing a diagram or by using words to defend this claim.

Closure Summarize the goal of cellular respiration. Explain the equation for cellular respiration, identifying the reactants and products. Differentiate between aerobic and anaerobic respiration (fermentation) & explain where more energy is produced. Discuss the types of living organisms that are likely to carry out aerobic vs. anaerobic. Discuss types of organisms that produce lactic acid vs. alcohol when using anaerobic respiration. Explain that energy is in ATP is stored in a chemical bond, and that ATP can be recycled.