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Subject: Biology, asked on 1/7/15


which part of the brain controls breathing movements

Subject: Biology, asked on 1/7/15

what do you mean by forceful expiration

Subject: Biology, asked on 7/6/15


when carbon dioxide concentration of bood increases , breathing becomes
a.slow and deep
b.shallower and slower
c.shallower and faster
d.faster and deeper

Subject: Biology, asked on 7/6/15

the majority f carbon dioxide produced by our blood cells is transported to lungs
a.attached to haemoglobin
b.dissolved in the blood
c.as carbonate
as bicarbonate

Subject: Biology, asked on 6/6/15


IN BREATHING MOVEMENTS AIR VOLUME CAN BE ESTIMATED BY
A)STHETHOSCOPE
B)HYGROMETER
C)SHPHYGMOMANOMETER
D)SPHIROMETER

Subject: Biology, asked on 6/6/15

DURING INSPIRTION,DIAPHRAGM
A)FLATTENS
B)EXPANDS
C)RELAXES
D)SHOWS NO CHANGE

Subject: Biology, asked on 6/6/15

NO. OF MOLECULES OF OXYGEN CARRIED BY ONE MOLECULE OF HAEMOGLOBIN
A)ONE
B)TWO
C)THREE
D)FOUR

Subject: Biology, asked on 6/6/15


LUNGS ARE COVERED BY
A)PLEURAL MEMBRANE
B)PERITONEUM
C)PERICARDIUM
D)NONE OF THE ABOVE

Subject: Biology, asked on 6/6/15

PULMONARY VENTILATION MOVEMENTS ARE DUE TO
A)COSTAL MUSCLES
B)DIAPHRAGM
C)WALL OF LUNGS
D)COSTAL MUSCLES AND DIAPHRAGM

Subject: Biology, asked on 27/10/22

What is hn-RNA? How is hn-RNA is processed to form m-RNA?

Subject: Biology, asked on 3/8/22

What is Adam's apple

Subject: Biology, asked on 28/3/22

Biology 21 1

Subject: Biology, asked on 7/3/22

Causes and symptoms of fibres

Subject: Biology, asked on 7/3/22

1. Describe how the atmospheric air is drawn into lungs.
2. Differentiate between Vital capacity n total lung capacity.
3. Describe the structure of the human respiratory system.
4. Write the cause and symptoms of fibrosis.
5. Explain Inspiration and Expiration with the help of diagram

Subject: Biology, asked on 21/2/22

Mention the boundaries of the thoracic chamber that makes it an air tight chamber

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