CELLULAR RESPIRATION Unit IV – Lesson 2 CELLULAR RESPIRATION
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ATP Adenosine Triphosphate
Adenosine triphosphate is an organic compound that provides energy to drive many processes in living cells
ATP Eukaryotic cell Prokaryotic cell
Found in: Eukaryotic cell Animals Protists Fungi Plants
Mitochondria Crucial in the cellular respiration
Mission Objective: Make ATP
Cellular Respiration Does it remind you of something?
Cellular Respiration
Take note: In photosynthesis, organisms make glucose. In cellular respiration, organisms break the glucose down to make ATP.
Fun Fact
Beans first germinate in the ground. Hence, it is unable to photosynthesize yet. It relies on glucose (stored in the form of starch) to do cellular respiration to break it down to make ATP so it can grow.
Once it mature, it can do both photosynthesis and cellular respiration
Steps in CELLULAR RESPIRATION
Step 1: Glycolysis
Step 1: Glycolysis It takes place in the cytoplasm This step is anaerobic
Step 1: Glycolysis Glucose Pyruvate Pyruvate ATP ATP NADH NADH Net Yield
NADH Co-enzyme Helps transfer electron useful in making more ATP
Step 1: Glycolysis Intermediate Step
Intermediate Step Pyruvate transported into mitochondria In mitochondria, pyruvate will be converted to acetyl CoA Carbon dioxide released 2 NADH are produced
Step 2: Krebs Cycle Aerobic Inputs: 2 acetyl CoA Outputs: 2 ATP, 6 NADH, and 2 FADH 2 Carbon dioxide released Note: FADH 2 is also a coenzyme that also assist transferring electrons to produce more ATP
Step 1: Glycolysis Intermediate Step Step 2: Krebs Cycle Electron Transport Chain & Chemiosmosis
Electron Transport Chain & Chemiosmosis
Electron Transport Chain & Chemiosmosis Inner mitochondrial membrane Occurs inside inner mitochondrial membrane Aerobic
Electron Transport Chain & Chemiosmosis
Take note: 30 – 38 net ATP molecules per glucose molecule are produce Reminder: Factors could make it more or less than the given range.