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11th Class - Biology | Chapter: Breathing and Exchange of Gases MCQs
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(A) Sigmoid
(B) Hyperbolic
(C) Linear
(D) Hypobolic
(A) Trachea — lungs — larynx — pharynx — alveoli
(B) Nose — larynx — pharynx — bronchus — alveoli — bronchioles
(C) Nostrils — pharynx — larynx — trachea — bronchi — bronchioles — alveoli
(D) Nose — mouth — lungs
(A) simple diffusion
(B) osmosis
(C) active transport
(D) passive transport
(A) Simple squamous epithelium
(B) Simple cuboidal epithelium
(C) Pseudostratified epithelium
(D) Simple columnar epithelium
(A) Perichondrium
(B) Pleural membrane
(C) Pericardium
(D) Peritoneum
(A) atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive
(B) there is more UV radiation which enhances RBC production
(C) people eat more nutritive food, therefore more RBCs are formed
(D) people get pollution – free air to breathe and more oxygen is available
(A) Inhalation of seasonal pollen
(B) Hot and humid environment
(C) Low temperature
(D) Eating fruits preserved in containers
(A) 7%
(B) 23%
(C) 50%
(D) 70%
(A) O2
(B) CO2
(C) CO
(D) Ozone
(A) Dorsal
(B) Ventral
(C) Lateral
(D) Ventrolateral
(A) Frog and earthworm
(B) Fish and frog
(C) Leech and earthworm
(D) Fish and earthworm
(A) Relaxation of diaphragm and intercostal muscles
(B) Contraction of diaphragm and intercostal muscles
(C) Contraction of diaphragm muscles
(D) Contraction of intercostal muscles
(A) Internal Intercostal muscles
(B) Diaphragm
(C) Lungs
(D) All of above
(A) Mammals
(B) Mollusca
(C) Earthworm
(D) Arachnida
(A) dissolved in blood plasma
(B) in the form of carbonic acid only
(C) in combination with haemoglobin only
(D) carbaminohaemoglobin and as carbonic acid
(A) Anabolic
(B) Catabolic
(C) Creatine phosphate
(D) Amphibolic
(A) regulate inspiration
(B) regulate rhythm
(C) increase heart rate
(D) all of the above
(A) The nasal cavity warms and humidifies the air before it enters the lungs
(B) The right lung is composed of three lobes, but the left lung has only two lobes
(C) Lung volumes and vital capacity measure lung function.
(D) The visceral pleura is in direct contact with the chest wall.
(A) Trachea
(B) Glottis
(C) Larynx
(D) Epiglottis
(A) pons
(B) medulla oblongata
(C) hypothalamus
(D) cerebrum
(A) pulmonary vein
(B) systemic vein
(C) pulmonary artery
(D) systemic artery
(A) heart
(B) kidneys
(C) lungs
(D) brain
(A) Alveoli of the Lungs
(B) heart valves
(C) heart muscles
(D) pleural membranes function
(A) Mucus and cilia
(B) A c shaped cartilage rings
(C) A pebbly epidermal surface
(D) An acidic glands
(A) RBCs
(B) Plasma
(C) Bicarbonates
(D) All RBCs and bicarbonate carried 70 per cent of carbondixide.
(A) Total lung capacity
(B) Vital capacity
(C) Tidal volume
(D) Ventilation rate
(A) It prevents foreign objects from entering the trachea
(B) It houses the vocal cords
(C) It is an organ made of cartilage and connects the pharynx to the trachea
(D) All of these are correct
(A) It functions as passages of air to each alveolus
(B) It functions for sound production
(C) It Acts as passage of air to bronchi
(D) It Lowers the surface tension
(A) Every 100 mL of deoxygenated blood delivers approximately 4 mL of carbondioxide to the alveoli.
(B) Every 100 mL of oxygenated blood delivers approximately 4 mL of oxygen to the tissues.
(C) Every 100 mL of oxygenated blood delivers approximately 4 mL of carbondioxide to the alveoli.
(D) Every 100 mL of deoxygenated blood delivers approximately 10 mL of carbondioxide to the alveoli.
(A) Vital capacity
(B) Tidal volume
(C) Total lung capacity
(D) Inspiratory capacity
(A) The nasal cavity warms and humidifies the air before it enters the lungs
(B) The right lung is composed of three lobes, but the left lung has only two lobes.
(C) Lung volumes and vital capacity measure lung function.
(D) The visceral pleura is in direct contact with the chest wall.
(A) Heart
(B) Lungs
(C) Pancreas
(D) Both 1and 2
(A) nonciliated columnar
(B) nonciliated squamous
(C) ciliated columnar
(D) ciliated squamous
(A) loss of cilia lining the respiratory tract
(B) emphysema
(C) coughing
(D) All of the Above
(A) 4th thoracic vertebra
(B) 5th thoracic vertebra
(C) 6th thoracic vertebra
(D) 7th thoracic vertebra
(A) Anabolic
(B) Catabolic
(C) Creatine phosphate
(D) Amphibolic
(A) H+ concentration
(B) PCO2
(C) temperature
(D) All of these
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