Question

glycolysis, krebs cycle, and electron transport

1. after which reaction in aerobic respiration is co₂ released?

krebs cycle

1. if you continued to run for longer than a couple of minutes, you would eventually

start to sweat. which reaction of cellular respiration is responsible for releasing
h₂o which produces sweat?

Explanation:

Question 4

In aerobic respiration, the citric acid cycle (Krebs cycle) is where carbon dioxide ($\ce{CO2}$) is released. During the citric acid cycle, acetyl - CoA (derived from pyruvate, which is the end - product of glycolysis) is oxidized. In each turn of the citric acid cycle, several carbon atoms are oxidized, and $\ce{CO2}$ is released as a by - product. Glycolysis does not release $\ce{CO2}$, and the electron transport chain is mainly involved in ATP production and the reduction of oxygen to water, not $\ce{CO2}$ release.

Cellular respiration has three main stages: glycolysis, the citric acid cycle, and the electron transport chain. In the electron transport chain, oxygen acts as the final electron acceptor. As electrons pass through the electron transport chain, a proton gradient is established, and ATP is synthesized. At the end of the electron transport chain, oxygen combines with electrons and protons to form water ($\ce{H2O}$). This water, along with salts and other substances, makes up sweat when the body needs to cool down during prolonged exercise. Glycolysis produces pyruvate and a small amount of ATP, and the citric acid cycle produces $\ce{CO2}$, ATP, and electron carriers, but not the water that contributes to sweat.

Answer:

The reaction in aerobic respiration after which $\ce{CO2}$ is released is the citric acid cycle (Krebs cycle).

Question 5