Which of the following is true about respiration?
(1)it is for energy liberation
(2)it can occur both O2 presence and its absence
(3)In humans R.B.C show anaerobic respiration
(4)All of these
Choose the wrong statement
(1)CO2 is the harmful molecule and released during catabolic reactions
(2)respiration will always require O2
(3)Breathing is a part of respiration
(4)All of the above
Which of the following is true
(1)Gills are used by most of the aquatic animals
(2)lungs are used by most of the terrestrial animals
(3)Mammals have a well developed respiratory system
(4)All of the above
How many external nostrils are present in human beings
(1)1
(2)2
(3)3
(4)None of these
Nasopharynx opens through_________ of the larynx region into the trachea.
(1)glottis
(2)gullet
(3)epiglottis
(4)All of these
Which of the following is true about epiglottis
(1)thin elastic cartilaginous flap
(2)prevent food entry into larynx
(3)Coughing occurs due to its improper movement
(4)All of these
The common passage for food and air is
(1)nasal passage
(2)nasopharynx
(3)oropharynx
(4)pharynx
Which of the following is not supported by cartilaginous rings
(1)Primary bronchioles
(2)tertiary bronchioles
(3)tracheae
(4)alveoli
Which of the following comprise the lungs
(1)tracheae along with network of bronchi, bronchioles and alveoli
(2) network of bronchi, bronchioles and alveoli
(3)alveoli only
(4)Both A and B
Lungs are covered by a double layered membrane which is called
(1)Pleural membrane
(2)visceral membrane
(3)pulmonary membrane
(4)parietal membrane