Question at position 3 Aerobic respiration is the way that we:produce CO2 from O2make ATP from CO2produce O2 from CO2synthesize glucoseget chemical energy from our food

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Question at position 3 Aerobic respiration is the way that we:produce CO2 from O2make ATP from CO2produce O2 from CO2synthesize glucoseget chemical energy from our food

BlackTom AI · Accepted Answer

When approaching this question, it's important to map each option to what aerobic respiration actually accomplishes in biological terms.
Option 1: 'produce CO2 from O2' This statement reverses the direction of the gas exchange in respiration. In aerobic respiration, O2 is used and CO2 is produced as a waste product, not the other way around. So this is inaccurate as a description of the process.
Option 2: 'make ATP from CO2' This misrepresents the energetic outcome. ATP is generated from the phosphorylation of ADP using energy released from oxidizing nutrients, but CO2 is a byproduct of one of the earlier steps and not the substrate from which ATP is made. The actual substrate for ATP synthesis is ADP, not CO2, making this false.
Option 3: 'produce O2 from CO2' Aerobic respiration does not convert CO2 into O2. Photosynthesis does the opposite, using CO2 to form organic molecules and O2 as a byproduct. Thus this option describes a process that does not occur in respiration, so it is incorrect.
Option 4: 'synthesize glucose' While respiration breaks down glucose to harvest energy, it does not synthesize glucose. Gluconeogenesis and photosynthesis are related to glucose production, not aerobic respiration itself, so this statement is not accurate for describing aerobic respiration.
Option 5: 'get chemical energy from our food' This option correctly captures the essence of aerobic respiration: it oxidizes nutrients derived from food to release chemical energy in the form of ATP, enabling cellular work. This describes the primary purpose and outcome of the process.
In summary, the incorrect options misstate the inputs, outputs, or direction of energy flow in aerobic respiration, while the correct choice aligns with the fundamental purpose of extracting chemical energy from nutrient molecules present in food. The key idea across the wrong choices is confusion between the roles of O2 and CO2, the substrate for ATP synthesis, and the distinction between respiration and photosynthesis or gluconeogenesis.

Question at position 3 Aerobic respiration is the way that we:produce CO2 from O2make ATP from CO2produce O2 from CO2synthesize glucoseget chemical energy from our food

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Question at position 3 Aerobic respiration is the way that we:produce CO2 from O2make ATP from CO2produce O2 from CO2synthesize glucoseget chemical energy from our food

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