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Breathing And Exchange Of Gases Flashcards

1
Q

Which system is present in terrestrial arthropods for gaseous exchange

A

Tracheal system

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2
Q

Amphibians have how many modes of respiration and what are they

A

4 modes of respiration
1.skin
2.lungs
3.buccopharyngeal cavity
4.gills

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3
Q

How many stages are there in human respiration and what are they

A

Three stages.
They are:
1.external respiration
2.internal respiration
3.cellular respiration

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4
Q

Name the barrier that separate nasal cavity and buccal cavity

A

Palate

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5
Q

True/false
Q.pharnyx is the common passage for food and air.

A

True

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6
Q

Larynx is attached with

A

Upper portion of trechea

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7
Q

Opening of trechea is called

A

Glotis

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8
Q

Glotis is an opening present in

A

Larnyx

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9
Q

A cartilage that closes glotis

A

Epiglottis

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10
Q

Opening of oesophagus

A

Gullet

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11
Q

Trechea get divided into 2 primary bronchi at

A

5th thoracic vertebrae

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12
Q

C shaped incomplete rings of cartilage is present up to which point of conducting zone

A

Up to initial bronchioles

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13
Q

Work of Simple cuboidal cells present in walls of alveoli

A

Prevent alveoli from collapsing

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14
Q

Both horizontal and oblique fissure are present in

A

Right lung

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15
Q

Only oblique fissure is present in

A

Left lung

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16
Q

Normal inspiration is active process or passive process?

A

Active process

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17
Q

Normal expiration is active process or passive process

A

Passive process

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18
Q

Forceful inspiration is active process or passive process

A

Active process

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19
Q

Forceful expiration is active process or passive process

A

Active process

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20
Q

Name the muscles that help in normal inspiration

A

Diaphragm muscle
External intercostal muscles

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21
Q

During normal inspiration intra pulmonary pressure increase /decrease?

A

Decrease

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22
Q

During normal expiration intra pulmonary pressure decrease/increase?

A

Increase

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23
Q

Name the muscles that helps in forceful expiration

A

1.internal intercostal muscles
2.abdominal muscle

24
Q

I breath means

A

1 inspiration plus 1 expiration

25
An instrument that is used to measure pulmonary volume is
Spirometer
26
From external nostrils upto terminal bronchioles is known as
Conducting part
27
Alveoli and their ducts form
Respiratory zone
28
Squamous cells of alveoli are called
Pneumocyte
29
Which type of cells in alveoli help in gaseous exchange
Type 1 pneumocyte
30
Name the cells that prevent alveoli from collapsing
Type 2 pneumocyte
31
Spirometer cannot measure
Residual volume
32
Partial pressure of oxygen in atmosphere is
159mmhg
33
Partial pressure of oxygen in alveoli is
104 mmhg
34
Partial pressure of oxygen in expired air is
116 mmhg
35
Partial pressure of oxygen in oxygenated blood is
95 mmhg
36
Partial pressure of oxygen in deoxygenated blood is
40 mmhg
37
Partial pressure of oxygen in tissue is
40 mmhg
38
Partial pressure of carbon dioxide in inspired air(atmosphere)is
0.3 mmhg
39
Partial pressure of carbon dioxide in expired air is
32 mmhg
40
Partial pressure of carbon dioxide in alveoli is
40 mmhg
41
Partial pressure of carbon dioxide in oxygenated blood is
40 mmhg
42
Partial pressure of carbon dioxide in deoxygenated blood is
45mmhg
43
Partial pressure of carbon dioxide in tissue is
45 mmhg
44
What is the partial pressure of oxygen when oxygen haemoglobin dissociation curve reaches p 50
26 mmhg
45
Oxygen haemoglobin dissociation curve is also known as
S shaped or signoid curve
46
True /false Co2 is more soluble than o2
True
47
O2 binds with which part of haemoglobin
Fe2+ part of haeme
48
Co2 binds with which part of haemoglobin
Globin part of haemoglobin
49
How many percent of co2 is directly dissolved in plasma
7 percent
50
How many percent of oxygen is directly dissolved in plasma
3 percent
51
100ml of oxygenated blood carry how many oxygen
It carry 20ml o2
52
Out of 20 ML oxygen how many ML o2 I'd delivered to the tissue
5 ml o2
53
100 ml of deoxygenated blood deliver approximately how many ml of co2 to the alveoli
4ml
54
Thickness of diffusion membrane must be less than
1 mm
55
How many o2 molecules binds with single hb molecules
4

Biology (2 decks)

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