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Biology 12 Chapter 14 Respiration - 32
1.
What is the function of fluid between pleural cavity?
a) To kill many bacteria from reaching alveoli
b) All of these
c) Reduce friction
d) Enables pleuron to slide over one another
2.
What is the nature of lungs due to the presence of alveoli?
a) Bony
b) Stiff
c) Hard
d) Spongy
3.
Why lungs are spongy?
a) Due to the presence of capillaries
b) Due to the presence of parietal pleuron
c) Due to the presence of alveoli
d) Due to the presence of bronchioles
4.
Which lung has cardiac impression?
a) Left lung
b) Right lung
c) None
d) Both lungs
5.
What type of epithelium each alveolar sac is made up of?
a) Moist epithelium
b) Cartilage
c) Simple squamous epithelium+Moist squamous epithelium
6.
What is the mechanism of breathing called?
a) Ventilation
b) Respiration
c) None of these
d) Exchange of gases
7.
Which of the following accomplishes expansion of lungs?
a) All of these
b) Abdominal muscles
c) Intercostals muscles
d) Diaphragm
8.
Which of the following accomplishes expansion & contraction of lungs?
a) Intercostals muscles
b) Abdominal muscles
c) All of these
d) Diaphragm
9.
Which of the following accomplishes contraction of lungs?
a) All of these
b) Diaphragm
c) Abdominal muscles
d) Intercostals muscles
10.
What is the tidal volume?
a) 255 ml
b) 260 ml
c) 250 ml
d) 245 ml
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