Question

an overview of the stages of aerobic cellular respiration
name of stage location in cell where it occurs reactants products

1. krebs cycle matrix/ mitochondria paruvic acid 2 atp co2
2. etc matrix
3. glycolicis cytoplasm

atp and aerobic cellular respiration
name of stage how many atp does this stage “cost”? how many atp does this stage produce? how many atp does this stage “profit”?
1.
2
3.
anaerobic cellular respiration basic

Explanation:

Step1: Recall Krebs Cycle details

The Krebs cycle occurs in the mitochondrial matrix. Reactants are acetyl - CoA (derived from pyruvic acid after conversion), and products include 2 ATP, CO₂, and electron - carrying molecules (NADH and FADH₂ not shown in the original table). It has no ATP cost. So, cost = 0, produce = 2, profit = 2 - 0=2.

Step2: Recall ETC details

The Electron Transport Chain (ETC) occurs in the inner mitochondrial membrane (not matrix as wrongly written in the table). Reactants are NADH, FADH₂ and O₂. It produces about 32 - 34 ATP. It has no direct ATP cost. So, cost = 0, produce = 32 (taking a conservative estimate), profit = 32 - 0 = 32.

Step3: Recall Glycolysis details

Glycolysis occurs in the cytoplasm. It uses 2 ATP (cost) to break down glucose and produces 4 ATP, so the net ATP production (profit) is 4 - 2=2. Cost = 2, produce = 4, profit = 2.

Answer:

Name of Stage	How many ATP does this stage “cost”?	How many ATP does this stage produce?	How many ATP does this stage “profit”?
ETC	0	32	32
Glycolysis	2	4	2