How are oxygen and carbon dioxide exchanged in our body during respiration?

How are lungs designed in human beings to maximise the exchange of gases?

Give the main points of difference between respiration in plants and respiration in animals.

Which contains more carbon dioxide: exhaled air or inhaled air? Why?

"Respiration is a vital function of the body". Justify this statement.

What is the main difference between aerobic respiration and anaerobic respiration? Give one example of each.

What type of respiration takes place in yeast?