Back Lecture 6 - Learning Outcomes · Discuss the 2 ways in which animal cells ma

Question

Back Lecture 6 - Learning Outcomes · Discuss the 2 ways in which animal cells make ATP (i.e. what is the difference between direct and indirect ATP production?) * Describe the 3 stages via which food molecules are broken down, explaining where each stage takes place in eukaryotes & prokaryotes. · Describe the overall net products of glycolysis · Explain why ATP is used during the early stages of glycolysis (i.e. for what purpose) · Discuss the purpose of fermentation and identify the products of fermentation in muscle and yeast cells, paying special attention to the redox reactions involved (i.e. reduction of pyruvate, oxidation of NADH to NAD+)

Explanation / Answer

ATP is formed from ADP + Pi in cell during cell respiration when H+ ions flow through the ATP synthase. During the glucose breakdown the glycolisis step yields 2 ATP, Kreb's cycle yields 2 ATP and electron transport system 32 ATP that is net 36 ATP is yielded per glucose catabolism.

The indirect way of production of ATP is lactate fermentation which produce 2 ATP.

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