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Quiz 4
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\(P_{CO_2}\) released from the body is about-
0%
15%
0%
30%
0%
70%
0%
23%
The trachea is lined with incomplete rings of-
0%
Hyaline cartilage
0%
Calcified cartilage
0%
Fibrous cartilage
0%
Elastic cartilage
The maximum affinity of hemoglobin is with-
0%
Ammonia
0%
Oxygen
0%
Carbon monoxide
0%
Carbon dioxide
Mammalian lungs are-
0%
Spongy
0%
Hollow
0%
Solid and spongy
0%
None
Sound is produced in mammals
0%
By syrinx
0%
By bronchus
0%
During inhalation
0%
During exhalation
The diffusion of \(CO_2\) across the alveolar membrane is 20 times faster than that of because:-
0%
\(CO_2\) is more soluble in \(H_2O\) than \(O_2\) which enables it to pass the membrane more readily
0%
The \(CO_2\) pressure gradient is higher
0%
\(CO_2\) is actively transferred
0%
The alveolar area available for \(CO_2\) diffusion is larger
Hemoglobin is-
0%
Blood carrier
0%
Vitamin
0%
Skin pigment
0%
Respiratory pigment
In a fever breathing rate-
0%
None
0%
Increase
0%
Decrease
0%
Stop
Which of the following are respiratory organs of a scorpion?
0%
Gills
0%
Book-lungs
0%
Ceridian
0%
Lungs
Oxygen is carried by:-
0%
Platelets
0%
None of these
0%
Leucocytes
0%
Erythrocytes
Lungs are covered by
0%
Periosteum
0%
Pericardium
0%
Perichondrium
0%
Pleura
The form of energy used in respiration is –
0%
Radiant energy
0%
Mechanical energy
0%
Chemical energy
0%
Electrical energy
The narrowest and most numerous tubes of lungs are termed as-
0%
Bronchus
0%
Alveoli
0%
Bronchioles
0%
None of these
Expiration involves
0%
Relaxation of diaphragm and intercostals muscles
0%
Contraction of diaphragm and intercostals muscles
0%
Contraction of intercostals muscles
0%
Contraction of diaphragm muscles
During inspiration muscles of diaphragm-
0%
Coiled like string
0%
Contracts
0%
No effect
0%
Expands
Respiratory structures in the insects are –
0%
Skin
0%
Trachea
0%
Gills
0%
Lungs
A normal man respires in a minute-
0%
5 - 30 times
0%
20 -25 times
0%
14 -18 times
0%
10 -15 times
Epiglottis guards the opening of:-
0%
Eustachian tubes
0%
Oesophagus
0%
Larynx
0%
Internal nares
Exchange of gases in lung alveoli occurs thorough-
0%
Simple diffusion
0%
Active transport
0%
Passive transport
0%
Osmosis
In anaerobic respiration-
0%
\(O_2\) is given out
0%
\(O_2\) is taken in
0%
\(CO_2\) is taken in
0%
\(CO_2\) is given out
Vocal cards occur in-
0%
Larynx
0%
Glottis
0%
Bronchial tube
0%
Pharynx
The structure which prevents the entry of food into the respiratory tract is –
0%
Glottis
0%
Larynx
0%
Epiglottis
0%
Pharynx
The exchange of gases [\(O_2\) and \(CO_2\) ] in a mammal takes place in-
0%
Trachea
0%
Bronchioles
0%
Bronchi
0%
Alveoli
Breathing is controlled by a centre in the
0%
Cerebellum
0%
Heart
0%
Medulla oblongata
0%
Lungs
Which of the following is the source of respiration –
0%
Stored food
0%
Proteins
0%
Fats
0%
Glucose
Oxygen passes into the blood from the alveoli by a process called:-
0%
Osmosis
0%
Pinocytosis
0%
Diffusion
0%
Active transport
The smallest blood vessel in the body is
0%
Capillary
0%
Artery
0%
vein
0%
vena cava
Arteries carry oxygenated blood except
0%
Pulmonary
0%
Cardiac
0%
Hepatic
0%
systemic
Four chambered heart is found in:
0%
Cobra
0%
Tortoise
0%
Salamander
0%
Crocodile
The right atrium of the mammalian heart receives blood from
0%
Sinus venosus
0%
pulmonary veins
0%
Precavals
0%
Pre-and postcavals
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