Biology questions
20584 published questions with worked solutions.
- During inspiration, the diaphragm
- Which one of the following is the correct statement for respiration in humans?
- Lungs do not collapse between breaths and some air always remains in the lungs, which can never be expelled because
- The partial pressure of oxygen in the alveoli of the lung is
- Which of the following sets of conditions promotes the dissociation of oxygen from haemoglobin?
- The vital capacity of human being is about
- Oxyhaemoglobin dissociates into oxygen and deoxyhaemoglobin at
- Approximately 70% of carbon dioxide absorbed by the blood will be transported to the lungs
- The volume of air that can be breathed in by maximum forced inspiration over and above the normal inspiration is called
- What is the pO_2 and pCO_2 in the systemic arteries?
- Haemoglobin is having maximum affinity with
- How many molecules of oxygen are carried by one molecule of haemoglobin?
- Large volume of air a person can expire after a forced inspiration is called
- After forceful inspiration, the amount of air that can be breathed out by maximum forced expiration is equal to
- Amount of oxygen supplied by 100 mL arterial blood while passing through the tissues is
- A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O_2
- Haemoglobin of the human blood forms a stable complex compound with which of the following gas, leading the death?
- The expiratory reserve volume will be
- Which of the following is a respiratory disease?
- Among all, CO_2 in expired air is about