if the trend between points C and D were to continue at the same rate ,how to long might it take for the original lactic acid level to be reached again?(Hint : extend the line CD until it reaches the the starting value.)
Answers
Answer:
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
Muscles continue to contract, but less efficiently. During long periods of vigorous activity: lactic acid levels build up. glycogen reserves in the muscles become low as more glucose is used for respiration, and additional glucose is transported from the liver.
When oxygen is not present, pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue. In the process of glycolysis, NAD+ is reduced to form NADH + H+. ... One type of fermentation is alcohol fermentation.
When you exercise, the muscles you use require more energy. When exercise can be sustained, this demand is met primarily by aerobic means. Aerobic energy production in muscles results in increased gas exchange at the lungs, because more oxygen is taken in and more carbon dioxide is released.
Explanation:
⠀
Respiration Combustion
1. Respiration is a biochemical process that occurs inside living cells. 1. It is a physicochemical process which is non-cellular.
2. It is a slow process which releases energy in small steps and is stored as ATP. 2. It is a fast process which releases energy in one step with the increase in temperature.
3. The process involves various enzymes. 3. No enzymes are involved in such process.
4. A part of the energy is liberated as heat. 4. Most of the energy is liberated as heat.
⠀
Hope it helps... ¯\_(ツ)_/¯