{"id":4581,"date":"2017-03-30T21:25:09","date_gmt":"2017-03-30T21:25:09","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/wm-biology1\/?page_id=4581"},"modified":"2017-03-30T21:25:09","modified_gmt":"2017-03-30T21:25:09","slug":"understanding-cellular-respiration","status":"publish","type":"page","link":"https:\/\/courses.lumenlearning.com\/suny-wmopen-biology1\/understanding-cellular-respiration\/","title":{"rendered":"Understanding Cellular Respiration"},"content":{"rendered":"

Cellular respiration is a process that all living things use to convert glucose into energy. Let’s see how well you understand this process!<\/p>\n

Practice Questions<\/h2>\n

Which of the following shows the correct order of cellular respiration?<\/p>\n

    \n
  1. glycolysis, pyruvate oxidation, the citric acid cycle, and the electron transport chain<\/li>\n
  2. glycolysis, pyruvate oxidation, the electron transport chain, and\u00a0the citric acid cycle<\/li>\n
  3. pyruvate oxidation, glycolysis, the citric acid cycle, and the electron transport chain<\/li>\n<\/ol>\n
    Show Answer<\/span><\/p>\n
    Answer a is correct. Cellular respiration is made up of three pathways and the process known as pyruvate oxidation.\u00a0Glycolysis is the first pathway in cellular respiration\u2014pyruvate oxidation happens afterwards. This is then followed by the next two pathways: the citric acid cycle and the electron transport chain.<\/p>\n<\/div>\n<\/div>\n

    Which of the pathway(s) in cellular respiration\u00a0are aerobic?<\/p>\n

      \n
    1. glycolysis<\/li>\n
    2. the citric acid cycle<\/li>\n
    3. the electron transport chain<\/li>\n<\/ol>\n
      Show Answer<\/span><\/p>\n
      Both the citric acid cycle and the electron transport chain are aerobic. That\u2019s why the pyruvate\u00a0from glycolysis must be oxidized before it can enter the citric acid cycle.<\/p>\n<\/div>\n<\/div>\n

      Which is an accurate description of glycolysis?<\/p>\n

        \n
      1. This pathway breaks down glucose to produce 2 pyruvate molecules. It has two halves: the energy-requiring steps and the energy-releasing steps. The first half consumes 2 ATP, and the second half produces 4 ATP and 2 NADH, giving a net gain of 2 ATP and 2 NADH.<\/li>\n
      2. This pathway is a closed loop composed of eight steps: the final step produces the compound needed for the first step. Each round of this pathway produces 3 NADH and 1 FADH2<\/sub>.<\/li>\n
      3. This pathway produces 90 percent of the ATP generated during cellular respiration.\u00a0A proton pump spins a \u201cmotor\u201d; this movement converts ADP to ATP.<\/li>\n<\/ol>\n
        Show Answer<\/span><\/p>\n
        Option a\u00a0correctly describes glycolysis. Option b\u00a0describes the citric acid cycle. Option c\u00a0describe the electron transport chain.<\/p>\n<\/div>\n<\/div>\n

        What happens if there is no oxygen present after glycolysis is completed?<\/p>\n