NEET Zoology Breathing And Exchange Of Gases Class 11 Questions

Which of the following muscles help to increase the volume of thoracic cavity?

Match List - I with List - II.

Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?

Match List I with List II :

Vital capacity of lung is ________.

Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver _____ ml of O₂ to the tissues.

Which of the following is not the function of conducting part of respiratory system?

Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.

The partial pressures (in mm Hg) of oxygen (O₂) and carbon dioxide (CO₂) at alveoli (the site of diffusion) are :

Assertion (A): A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations. Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen. In the light of the above statements, choose the correct answer from the options given below.

Select the correct events that occur during inspiration. (a) Contraction of diaphragm (b) Contraction of external inter-costal muscles (c) Pulmonary volume decreases (d) Intra pulmonary pressure increases

Identify the wrong statement with reference to transport of oxygen.

Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual volume is 1200 mL?

Match the items given in Column I with those in Column II and select the correct option given below.

Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of

Asthma may be attributed to

Name the chronic respiratory disorder caused mainly by cigarette smoking.

When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe?

Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs

Figure shows blood circulation in humans with labels i to iv. Select the option which gives correct identification of label and functions of the part: