General Knowledge Quiz Questions with Answers on Biology
The Lungs and Respiration
Question- Of what are the lungs composed?
Answer- Of a soft, fleshy substance, full of small air-cells and tubes.
Question- Of what use are the lungs?
Answer- They are the breathing machines of the body.
Question- Of what use is the air when it is in the lungs?
Answer- It makes the blood pure.
Question- Why can you not live without breathing?
Answer- Because, if I do not breathe, pure air cannot get into the lungs to make the bad blood pure, and I cannot live if the dark, impure blood is sent back again through my body.
Question- Why should you avoid draughts of cool air?
Answer- Because the cool air blows upon some parts of the body and closes the pores of the skin, checking the perspiration, and hindering the circulation of the blood.
Question- Why should you not rush suddenly from a warm to a cool place?
Answer- Because when warm the pores of the skin are open; if I rush suddenly into the cool air, these pores are closed too quickly.
Question- Why does stopping the perspiration hurt the lungs more or less?
Answer- The impurities it ought to carry away remain in the body, make the blood impure, and produce disease in some part; very often that part is the lungs.
Question- What harm does alcohol do in the lungs?
Answer- It fills the lungs with impure blood.
Question- What harm does it do to the air-cells?
Answer- It hardens the walls of the air-cells of the lungs.
Question- How do the lungs appear when healthy?
Answer- Porous and spongy.
Question- How does the air get into the lungs?
Answer- The air flows through the nose and mouth, into the windpipe and along the air-tubes, into the air-cells of the lungs.
Question- What does the air do in the lungs?
Answer- It swells the lungs and causes the chest to expand.
Question- What do you mean by expand?
Answer- To increase in size.
Question- How is the air expelled from the lungs?
Answer- The chest contracts and sends the impure air through the tubes and windpipe, the nose and mouth, into the atmosphere.
Question- What do you mean by contracts?
Answer- Becomes smaller.
I have select this questions from biology section, I a student read this questions, I think, If you study this question, your knowledge on mouth will increase more. To know more about biology read biology .
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