Biology questions
20584 published questions with worked solutions.
- Respiratory centre of brain is sensitive to
- In breathing movements, air volume can be estimated by
- Respiration mechanism is controlled by
- Exchange of gases in lungs is by
- The limit of exchange of gases between alveoli and pulmonary blood is called
- Partial pressure of oxygen in the inspired and expired air is respectively
- Factors determining the extent to which oxygen will combine with haemoglobin are
- Haemoglobin most strongly combines with
- The carbon dioxide is transported via blood to lungs mostly
- The process by which chloride ions pass into RBC and bicarbonate ions pass out is called
- Blood contains CO2 in which of the following forms?
- Haemoglobin has about _____ times more affinity for CO than for O2
- Asthma is caused due to
- Increased asthmatic attacks in certain seasons are related to
- All are the disease of lungs except
- One main reason for emphysema is
- In an open circulatory system,
- Advantage of closed circulatory system is that
- 'Haemolymph' is the term used for the blood of the organism having
- All reptiles have a three-chambered heart except