Breathing and Exchange of Gases (Class - XI)
Breathing and Exchange of Gases test for Class - XI
Questions
Which of the following respiratory organs are present in spiders?
- Book gills
- Ctenidia
- Tube feet
- Book lungs
- Respiratory siphons
Which of the following is the sole mode of respiration in earthworms?
- Tracheal
- Avian
- Cell surface gaseous exchange
- Cutaneous
- Bronchial
The middle part of pharynx is called
- oropharynx
- gullet
- nasopharynx
- laryngopharynx
- epiglottis
The temporary closure of upper respiratory tract, resulting in apnoea and sleep breaks, is called
- orthopnoea
- sleep apnoea syndrome
- dyspnoea
- hypercapnia
- pleurisy
Which of the following is a primary inspiratory muscle?
- Sternocleidomastoid muscle
- Scaleni
- Abdominal muscle
- External intercostal
- Anterior serratus
Which of the following is the inspiratory capacity (IC) of lungs?
- 3000 - 3500 ml
- 1000 - 1100 ml
- 500 ml
- 1500 - 1600 ml
- 1100 - 1200 ml
Which of the following give rise to respiratory bronchioles?
- Alveoli
- Lobar bronchi
- Terminal bronchi
- Terminal bronchioles
The maximum extra volume of air that can be inspired after a normal tidal inspiration is called
- ERV
- TV
- RV
- IRV
- IC
Vestibular folds are also known as
- rima glottidis
- aditus
- glottis
- false vocal cords
- wind pipe
Which of the following organs produces sound in humans?
- Pharynx
- Larynx
- Epiglottis
- Nasal conchae
- Syrinx
Inflammation of pleural sacs due to infection or excessive pleural fluid is called
- eupnea
- polypnoea
- trachypnoea
- pleurisy
- hyperpnoea
The point of branching of trachea into two primary bronchi is called
- gullet
- carina
- hilum
- aditus
- oropharynx
Which of the following cartilages is the largest?
- Corniculate cartilage
- Cricoid cartilage
- Arytenoid cartilage
- Thyroid cartilage
- Cuneiform cartilage
Which of the following cells eliminate particles and microbes reaching the alveoli?
- Clara cells
- Brush cells
- Dense core granulated cells
- Dust cells
- Tracheoles
Which of the following is incorrect regarding the different steps of respiration?
- Breathing or pulmonary ventilation facilitates intake of alveolar air and expulsion of atmospheric air.
- Diffusion of gases takes place across alveolar membrane.
- Oxygen is transported to the tissue by blood.
- Diffusion of O2 and CO2 takes place between blood and tissues.
- Catabolism leads to utilisation of O2 by the cells and the release of CO2.