Respiration

Question 1

Describe the effects of exercise on respiration

Answer 1

Your heart will start beating faster, in order to oxygenate your muscles to keep them efficient. This will also increase the rate of your breathing.

Question 2

Explain the effects of exercise on respiration

Answer 2

When you exercise aerobically, your heart rate will quickly increase, as it needs to pump blood to your muscles. This will quickly increase your breathing rate as the haemoglobin in your red blood cells requires more oxygen to carry to your muscles.

Question 3

What is anaerobic respiration

Answer 3

Firstly, anaerobic respiration is when the respiration that is taking place doesn’t involve oxygen as the workout is too intense so the red blood cells cant pick up enough oxygen quick enough. As a result glucose will start breaking up to fill in for the missed oxygen and this will cause lactic acid build up in your muscles which will tier them. This respiration often happens in short high intensity workouts.

Question 4

Compare aerobic to anaerobic respiration

Answer 4

Aerobic respiration involves good levels of oxygen in order to oxygenate your muscles, allowing you to work for longer, yet in anaerobic respiration, little or no oxygen is involved, due to the high intensities which will quickly cause lactic acid build up. Aerobic involves oxygen whereas aerobic doesn’t.

Question 5

Compare anaerobic respiration in animals, bacteria and yeast

Answer 5

Anaerobic respiration in yeast forms ethanol and carbon dioxide.(fermentation). In animals, anaerobic respiration causes lactic acid build up. Anaerobic respiration in bacteria is used to form yogurts and other foods.

Question 6

Cellular respiration is a Reaction

Answer 6

Exothermic