Breathing and Exchange of gases Biology Test Series for NEET-2020

Test Preparation on Breathing and exchange of gases - Biology Test Series for NEET - 2020

1.

Oxygen in lungs ultimately reaches in
Or
The exchange of gases ( O₂ and CO₂) in a mammal takes
place in

1Alveoli
2Trachea
3Bronchus
4Bronchioles

2.

1(a)
2(b)
3(c)
4(d)

3.

Which of the following is a respiratory organ of scorpion

1Gill
2Lung
3Ctenidia
4Book lung

4.

During forced expiration, actively contracting muscles
include the

1Diaphragm
2External intercostals
3Abdominal muscles
4Diaphragm and intestinal muscle

(c) In forced expiration internal intercostal muscles and
some abdominal muscles contract to reduce the volume
of thorax.

5.

The diaphragm in rabbit is a

1Gap between the incisor and premolar teeth
2Membrane which surrounds and protects the brain
3Membrane which lies between the external auditory meatus and tympanic cavity of the ear
4Partition of muscular septum separating the thoracic cavity from abdominal cavity

(d) Presence of diaphragm is mammalian character, which
is dome-shaped partition that separates the thoracic
and abdominal cavities.

6.

Carbon dioxide is transported via blood to lungs mostly

1As carbaminohaemoglobin and as carbonic acid
2In the form of carbonic acid only
3In combination with haemoglobin only
4Dissolved in blood plasma

7.

1(a)
2(b)
3(c)
4(d)

8.

Similarity between the trachea of cockroach and rabbit is
that

1Both are paired and branched
2Ciliated epithelium is present in both
3Walls of both can not be deformed
4In both head originates from pharynx

9.

The cartilage present in the larynx of rabbit are

1Thyroid, cricoid, arytenoid
2Thyroid, cricoid, epiglottis
3Thyroid, cricoid, ethmoid
4Thyroid, cricoid, palatine

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