1. How is ‘respiration’ different from ‘breathing’? Explain the process of aerobic and anaerobic respiration.
2. I) Name the blood vessel that brings oxygenated blood to the human heart.
II) Which chamber of the heart received oxygenated blood?
III) Explain how is the oxygenated blood from this particular chamber sent to all the body parts?
3. Explain the schematic representation of gaseous exchange in tissues.
4. Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structures and functioning?
5. What is the significance of emulsification of fats?
Answers
Answer:
1,Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. ... This process requires oxygen and therefore following anaerobic respiration there is oxygen debt in the cell, as oxygen is needed to break down the lactic acid produced.
1)Left chamber
7,The four-chambered heart has a distinct advantage over simpler structures: It allows us to send our "dirty" blood to the cleaners-the lungs-and our "clean" blood to the rest of the body without having to mix the two. That system is very efficient
5,Emulsification is the process of breaking down the fat into smaller globules making it easy for the enzymes to act and digest the food . Emulsification of fats helps in digestion of fats into fatty acids and glycerol which an be easily absorbed by small intestinal
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