Cell Respiration Chapter 9

Slide 2 of 40 Cellular Respiration

Slide 3 of 40 Cellular Respiration

Slide 4 of 40 Questions  Is respiration exergonic or endergonic? Why?  Is fermentation exergonic or endergonic? Why?  Does respiration require enzymes?  What are the 2 catabolic pathways?  How do they differ?

Slide 5 of 40 Questions Answers  Is respiration exergonic or endergonic? Why? Exergonic, releases energy as ATP and heat  Is fermentation exergonic or endergonic? Why? Exergonic, releases energy as ATP and heat  Does respiration require enzymes? Yes  What are the 2 catabolic pathways? Cellular Respiration & Fermentation (EtOH & Lactate)  How do they differ? Respiration requires O2 & Produces 18-19x ATP

Slide 6 of 40 Questions (Page 2)  What are the 4 parts of cellular respiration?  Which of the parts produce ATP?  Which of the parts produce NADH?  Which part(s) of cellular respiration require oxygen?

Slide 7 of 40 Questions (Page 2) Answers  What are the 4 parts of cellular respiration? Glycolysis, Pyruvate Oxidation, TCA, & Oxidative Phosphorylation  Which of the parts produce ATP? All but Pyruvate Oxidation  Which of the parts produce NADH? All but Oxidative Phosphorylation  Which part(s) of cellular respiration require oxygen? Only ETC (part of Oxidative Phosphorylation)

Slide 8 of 40 Questions  What is Glycolysis?  What is produced in Glycolysis?  Where does Glycolysis occur in a eukaryotic cell?  Where does it occur in a prokaryotic cell?

Slide 9 of 40 Questions Answers  What is Glycolysis?  Splitting of glucose into 2 pyruvates  What is produced in Glycolysis?  2 ATP, 2 NADH, & 2 Pyruvate  Where does Glycolysis occur in a eukaryotic cell?  Cytoplasm or Cytosol  Where does it occur in a prokaryotic cell?  Cytoplasm or Cytosol

Slide 10 of 40 Questions  What are the 4 Parts of Cellular Respiration?  What is the purpose of Pyruvate Oxidation?  What is produced in Pyruvate Oxidation?  For each glucose, how many pyruvate oxidations occur?

Slide 11 of 40 Questions Answers  What are the 4 Parts of Cellular Respiration?  Glycolysis, Pyruvate Oxidation, TCA, & Oxidative Phosphorylation  What is the purpose of Pyruvate Oxidation?  To transport pyruvate into the mitochondrion  What is produced in Pyruvate Oxidation?  CO 2, NADH or FADH 2, & Acetyl CoA  For each glucose, how many pyruvate oxidations occur?  2

Slide 12 of 40 Questions (Page 2)  Where does the TCA cycle occur in a eukaryotic cell?  Where does it occur in a prokaryotic cell?  What are the 2 alternate names for the TCA cycle?

Slide 13 of 40 Questions (Page 2) Answers  Where does the TCA cycle occur in a eukaryotic cell?  Mitochondria  Where does it occur in a prokaryotic cell?  Cytoplasm or Cytosol  What are the 2 alternate names for the TCA cycle?  Kreb’s Cycle, TriCarboxylic Acid, or Citric Acid Cycle

Slide 14 of 40 Questions (Page 3)  For each glucose, how many turns of the TCA cycle occur?  Each turn of the TCA cycle produces how much:  CO 2 ?  ATP?  NADH?  FADH 2 ?

Slide 15 of 40 Questions (Page 3) Answers  For each glucose, how many turns of the TCA cycle occur?  2  Each turn of the TCA cycle produces how much:  CO 2 ? = 2  ATP? = 1  NADH? = 3  FADH 2 ? = 1