Biology questions
20584 published questions with worked solutions.
- In human heart, deoxygenated blood is present
- Which of the following blood vessel carries blood from lungs to the heart?
- Respiration can be defined as
- Respiratory system in human comprises of
- Which of the following characters is exclusive to mammalian respiratory system?
- The position of larynx is
- Trachea is present in
- Gaseous exchange occurs in respiratory process in
- Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allow
- In human beings, lungs are divided into
- Which structures are responsible for breathing process?
- The most important function of diaphragm of the mammals is to
- In human beings, rib cage and sternum move upwardly and outwardly during
- Expiration involves
- During normal respiration, without any effort, the volume of air inspired or expired is called
- After a forceful expiration, some air is left in the lungs, which is
- After deep inspiration, capacity of maximum expiration of lung is called
- During forced expiration, actively contracting muscles include the
- The respiratory centre, which regulates respiration, is located in
- Medullary inspiratory centre is under