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Breathing And Exchange Of Gases

331 Questions Start Allen Test
All Exams Allen Errorless
NCERT; RPMT 2001 Q101 Errorless Respiratory organs MCQ
In which part gaseous exchange take place in rabbit
A.
Trachea and alveolar duct
B.
Trachea and bronchi
C.
Alveolar duct and alveoli
D.
Alveoli and tissues
KCET 2001; MH CET 2003 Q102 Errorless Pulmonary volumes and capacities MCQ
The area of inner surface of bronchiole is
A.
1 $m ^ { 2 }$
B.
$1 0 \ m ^ { 2 }$
C.
$1 0 0 m ^ { 2 }$
D.
$1 0 0 0 m ^ { 2 }$
BVP 2000; AIIMS 2000; CBSE PMT 2002; MHCET 2002 Q103 Errorless Respiratory organs MCQ
The pigment haemocyanin is found in
A.
Chordata
B.
Annelida
C.
Mollusca
D.
Echinodermata
CPMT 2000 Q104 Errorless Control of breathing MCQ
During strenous exercise, which of the following change occurs
A.
Glucose is converted into glycogen
B.
Glucose is converted into pyruvic acid
C.
Starch is converted into glucose
D.
Pyruvic acid is converted into lactic acid
BVP 2000; WB JEE 2011; Odisha JEE 2012 Q105 Errorless Disorders of respiration system MCQ
When $O _ { 2 }$ is inadequate during respiration. the condition is called
A.
Anoxia
B.
Pleurisy
C.
Asphyxia
D.
Hypoxia
MP PMT 2000 Q106 Errorless Critical Thinking Numerical
Buccopharyngeal respiration in frog (a) Is increased when nostrils are closed (b) Stops when there is pulmonary respiration (c) Is increased when it is catching fly
MP PMT 2000 Q107 Errorless Self Evaluation Test MCQ
Voice in mammal produced
A.
By syrinx
B.
By bronchus
C.
During inhalation
D.
During exhalation
RPMT 1999; Odisha JEE 2010 Q108 Errorless Respiratory organs MCQ
Respiratory pigment in cockroach is
A.
Haemozoin
B.
Haemocyanin
C.
Haemoglobin
D.
Absent
BHU 1999; CPMT 2000 Q109 Errorless Respiratory organs MCQ
In man and mammals, air passes from outside into the lungs through
A.
Nasal cavity, larynx, pharynx, trachea bronchi, alveoli
B.
Nasal cavity, larynx, pharynx, trachea, bronchioles, alveoli
C.
Nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli
D.
Nasal cavity, pharynx, larynx, trachea, bronchi bronchioles, alveoli
CPMT 1999; Pb. PMT 1999; CPMT 2004; MP PMT 2007; Odisha JEE 2011 Q110 Errorless Pulmonary volumes and capacities MCQ
The largest quantity of air that can be expired after a maximum inspiratory effort is
A.
Residual volume
B.
Tidal volume
C.
Vital capacity of lung
D.
Lung volume
MP PMT 1998 Q111 Errorless Respiratory organs MCQ
Oxygen in lungs ultimately reaches in Or The exchange of gases (O2 and CO2) in a mammal takes place in
A.
Alveoli
B.
Trachea
C.
Bronchus
D.
Bronchioles
CPMT 1998; DPMT 2007 Q112 Errorless Respiratory organs MCQ
In which of the following animals Hb (Haemoglobin) is found dissolved in plasma Or In which of the following animals, respiration occurs with out any respiratory organ[CPMT 2003]
A.
Planaria
B.
Cockroach
C.
Sepia
D.
Earthworm
CBSE PMT 1998; AFMC 2002; Bihar BCECE 2005; Odisha JEE 2010 Q113 Errorless Process of respiration MCQ
The exchange of gases in the alveoli of the lungs takes place by
A.
Osmosis
B.
Simple diffusion
C.
Passive transport
D.
Active transport
CPMT 1998 Q114 Errorless Process of respiration MCQ
Which of the following enzymes is absent in mitochondria
A.
Aconitase
B.
Maleic dehydrogenase
C.
Hexokinase
D.
None of these
CPMT 1998; MP PMT 1999; AFMC 2003; Odisha JEE 2009 Q115 Errorless Process of respiration MCQ
Energy is stored in the liver and muscles in the form of
A.
Carbohydrates
B.
Glycogen
C.
Fat
D.
Protein
CPMT 1998; MP PMT 1998, 2002; AIEEE Pharmacy 2003; Odisha JEE 2010 Q116 Errorless Process of respiration MCQ
The major fraction of $C O _ { 2 }$ released during cellular respiration is transported by the blood to the lung capillaries Or Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs [CBSE PMT 2014]
A.
In combination with haemoglobin
B.
As free $C O _ { 2 }$
C.
As carbonic acid or $H _ { 2 } C O _ { 3 }$
D.
In the form of bicarbonate ions
CPMT 1998 Q117 Errorless Critical Thinking MCQ
A pyrophosphate cleavage takes place when
A.
ATP is converted into AMP
B.
ATP is converted into ADP
C.
ADP is converted into AMP
D.
AMP is converted into ATP
MP PMT 1998 Q118 Errorless Self Evaluation Test MCQ
In vertebrate blood which respiratory pigment is the carrier of oxygen to the tissues
A.
Plasma
B.
Lymphocytes
C.
Leucocytes
D.
Haemoglobin
CBSE PMT 1997 Q119 Errorless Process of respiration MCQ
In lungs, the air is separated from the venous blood through
A.
Squamous epithelium + endothelium of blood vessel
B.
Squamous epithelium + tunica media blood vessel
C.
Transitional epithelium + tunica external blood vessel
D.
None of these
MP PMT 1997; BVP 2000 Q120 Errorless Self Evaluation Test MCQ
What is the total vital capacity of lungs in man
A.
500 ml
B.
2,000 ml
C.
4,600 ml
D.
5,800 ml
MP PMT 1997; RPMT 2005; Odisha JEE 2009; AFMC 2010 Q121 Errorless Self Evaluation Test MCQ
How many molecules of oxygen are bound to one molecule of haemoglobin
A.
1
B.
2
C.
3
D.
4
CPMT 1996; MP PMT 2002 Q122 Errorless Critical Thinking MCQ
If a man from sea coast goes to Everest peak then
A.
His breathing and heart beat will increase
B.
His breathing and heart beat will decrease
C.
His respiratory rate will decrease
D.
His heart beat will decrease
NCERT; KCET 1996 Q123 Errorless Critical Thinking MCQ
Exposure to carbon monoxide (from coal gas) is extremely dangerous and can kill a patient because
A.
The compound carboxyhaemoglobin (COHb) it forms with heamoglobin can gradually clot the blood resulting in circulatory failure
B.
COHb reduces the ability of blood for transport oxygen by ruputring a vast majority of erythrocytes
C.
COHb greatly modifies the structure of haemoglobin, thus making it lose its affinity for oxygen
D.
None of the above
CBSE PMT 1995; Odisha JEE 2008 Q124 Errorless Respiratory organs MCQ
Carbon dioxide is transported via blood to lungs mostly
A.
As carbaminohaemoglobin and as carbonic acid
B.
In the form of carbonic acid only
C.
In combination with haemoglobin only
D.
Dissolved in blood plasma
CBSE PMT 1995 Q125 Errorless Process of respiration MCQ
Division of mammalian lungs into a very large number of tiny alveoli around alveolar ducts opening into bronchioles, is
A.
An inefficient system of ventilation of alveoli though with very little residual air
B.
An inefficient system of ventilating the alveoli resulting in very high percentage of residual air in the lungs
C.
A very efficient system of ventilating the alveoli with no residual air
D.
An efficient system of ventilation of alveoli with little or no residual air