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4

In rabbits, respiration takes place in

A. Cells lining the lung cavities

B. Cells found in blood

C. All living cells of the body

D. RBC only

Correct Answer :

C. All living cells of the body


Related Questions

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4

In response to high altitude hypoxia supply of oxygen to the tissue is maintained by

A. increased alveolar ventilation and increased cardiac output

B. shift in the haemoglobin dissociation curve to the right

C. increased erythrocytes and haemoglobin content of blood

D. all of these

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4

The carbon dioxide pressure in the lung capillaries is

A. less than that in alveolar air

B. more than that in alveolar air

C. equal to that in alveolar air

D. similar to oxygen pressure in the capillaries

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4

In all vertebrates, the oxygen transport is through

A. haemocyanin

B. haemoglobin

C. myoglobin

D. haemoerythrin

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4

The greatest volume of air that can be expired after a maximum inspiratory affect, is its

A. residual volume

B. tidal volume

C. vital capacity

D. lung volume

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4

Colour of oxyhaemoglobin is

A. dull red

B. bluish red

C. bright red

D. dull brown

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4

The respiratory tubes devoid of car-tilagenous rings are

A. trachea

B. bronchi

C. bronchioles

D. none of these

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4

During inspiration in mammals, the diaphragm shall

A. Contract

B. relax

C. expand

D. shows no change

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4

The process of breathing-in of oxygen rich air from outside is called

A. expiration

B. inspiration

C. respiration

D. oxidation

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4

The oxygen content of expired air in man is

A. 3 per cent

B. 25 per cent

C. 16 per cent

D. 20 per cent

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4

In a man at rest the body's cells consume approximately

A. 5000 ml of oxygen per day

B. 5000 ml of oxygen per hour

C. 500 ml of oxygen per hour

D. 200 ml of oxygen per minute

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4

Diaphragm is characteristic of

A. egg-laying mammals only

B. marsupial mammals only

C. eutherian mammals only

D. all the mammals

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4

Which of the following can respire in total absence of air (anoxyliosis)?

A. Amoeba

B. Bed bug

C. Hydra

D. Tapeworm

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4

The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is due to

A. lack of sufficient amount of haemoglobin

B. lack of sufficient amount of erythrocytes

C. arterial hypoxia

D. anaemic hypoxia

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4

The rate of respiration is lowest at

A. sleeping

B. running

C. eating food

D. playing

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4

Internal respiration refers to

A. exchange of gases between lungs and blood

B. cellular respiration

C. exchange of gases between lungs and atmosphere

D. respiration in open air

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4

Ciliated epithelium in the trachea of mammals helps in

A. sucking-in air

B. pushing expired air out

C. pushing mucus out

D. keeping the alveolar air in circulation

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4

The iron containing haemoglobin pigment is a

A. protein

B. polysaccharide

C. enzyme

D. none of these

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4

All are lung diseases except

A. asthma

B. pericarditis

C. bronchitis

D. pneumonia

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4

Anoxia means

A. absence of oxygen

B. diminished amount of oxygen delivered to the tissues

C. both (a) and (b)

D. none of these

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4

The impulses reaching voluntary muscles for forced breathing originate from

A. medulla oblongata

B. spinal cord

C. vagus nerve

D. cerebrum

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4

A normal man respires in a minute

A. 25-30 times

B. 10-15 times

C. 14-18 times

D. 20-25 times

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4

The term used to denote the difference in volume between the total lung capacity and the vital capacity is

A. tidal volume

B. ventilation rate

C. residual volume

D. all of these

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4

The respiratory disease immediately related to cigarette smoking is

A. hypercapnia

B. pulmonary edema

C. hypoxia

D. emphysema

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4

The substances undergoing slow oxidation in the body during respiration are known as

A. Oxidases

B. Metabolites

C. ATP

D. ADP

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4

Pulmonary artery

A. returns highly oxygenated blood to the left heart for distribution throughout the body

B. returns highly oxygenated blood to right heart for distribution throughout the body.

C. delivers blood to lungs low in oxygen

D. delivers highly oxygenated blood in lungs

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4

The functional unit of the lung is

A. neuron

B. alveolus

C. bronchus

D. none of these

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4

Air directly enters the tracheae via the

A. external nares

B. pharynx

C. larynx

D. bronchi

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4

The metal associated with haemoglobin is

A. Copper

B. Magnesium

C. Iron

D. Manganese

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4

The capacity of lungs for air in a healthy man is about

A. 500 ml

B. 1000 ml

C. 2000 ml

D. 3000 ml

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4

The maximum volume of inspirable air is called

A. vital capacity

B. residual volume

C. inspiratory capacity

D. any of these