Gaseous Exchange in Humans Chapter 10 - 10th Biology Notes

Chapter 10: 

 Gaseous Exchange in Humans

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 Differentiate between breathing and cellular respiration?
 The process in which animals inhale air to get oxygen and release carbon dioxide is called breathing. While the process of mechanical and biochemical collectively called cellular respiration.

 How will you differentiate between a stoma and a lenticel?
 The small space present between upper epidermis of leaves is called stoma in which exchange of gases take place. While small pores present in the tree bark is known as lenticel.

 Write two bad effects of smoking?
 1. Increase risk of cancer. 2. Cancer in kidney,breast,layrenx,oral cavity infects bronchus.

 Who are passive smoker and how they are affected?
 Those person who not doing smoking but affect by other person smoking.

 What are vocal cords?
 2 pairs of fibrous bands

 What is nostrils?
 Opening of nose is called nostrils.

 Define diaphragm?
 Densely muscular structure .

 Define bronchitis?
 Inflammation in bronchi is called bronchitis.

 What is intercostal muscles?
 Ribs muscles

 Define Inhalation?
 Taking air in to the body is called inhalation in this process rib muscles contract ribs enhance.

 Define exhalation?
 Expelled out impure air.

 Define arterio sclerosis?
 When concentration of platelets are increased by normal range then artery become narrow.

 What is asthma?
 Allergy reaction due to inflammation of bronchi fluid production.

 What are the symptoms of asthma?
 Shortness of breath, wheezing,cough,chest tightness.

 Define epiglottis?
 The glottis covered by strong tissue is called epiglottis

 Write the difference between Acute and chronic bronchitis?
 In acute bronchitis end 2 weeks and recover patients soon. While chronic end up to four months.

 What is larynx?
 Cartilage box is called larynx.

 Define aerobic respiration?
 The process in which oxygen utilize is called aerobic respiration.

 Define nasal cavity?
 The cavity in which nose enclose is called nasal cavity.

 What is emphysema?
 Break down of of alveoli wall is known as emphysema.