Review 1: You draw a 5-card hand from a standard 52-card deck and then arrange the cards from left to right. a. After the cards have been selected, in how many different ways could you arrange them? b. How many different 5-card hands could be formed without considering arrangement? c. How many different 5-card arrangements could be formed from the deck? d. Which part(s) of this problem involve permutations and which involve combinations?

Study guide Exam 3 Key Respiration 1. Respiration cannot occur without Oxygen 2. List the four steps to cellular respiration and what happens during the step 1. Glycolysis – Glucose is broken down to form pyruvate 2. Pyruvate Processing- Pyruvate is oxidized to form acetyl CoA 3. Citric Acid Cycle (Krebs cycle) - Acetyl CoA CO2 oxidized 4. Electron Transport and Chemiosmosis- Compounds reduced in steps 1-3 are oxidized in reactions leading to ATP production 3. What steps of cellular respiration are responsible for glucose oxidation Which produce the most ATP The first three steps are responsible for glucose oxidation. The last step produces the most ATP 4.