A. Alveoli
B. Air sacs
C. Parabronchi
D. None of these
Related Mcqs:
- Which of the following fishes contained lungs?
A. Lamprey
B. Perch
C. Plaice
D. Dipnoi - Lungs are spongy due to the presence of million of___________?
A. Air sacs
B. Alveoli
C. Bronchioles
D. Parabronchi - Lungs are covered with double layered thin membranous sac called___________?
A. Disphragm
B. Pleura
C. Pericardium
D. Rib cage - A disease of longs in which inside of the lungs is damaged resulting in cough and fever?
A. Lung cancer
B. Asthma
C. Emphysema
D. Pulmonary tuberculosis - Which of the following animals has a respiratory system with one way flow of the air through the lungs, and the air is renewed after inspiration?
A. Cockroach
B. Earthworm
C. Aves
D. Frogs - The membrane covering the lungs is a________?
A. Pleura
B. Pericardium
C. Peritoneum
D. MesotheliumSubmitted by: Malik Asghar Hussain
- The blood vessel carrying blood from the lungs to the heart is_______?
A. Hepatic artery
B. Pulmonary artery
C. Pulmonary vein
D. Renal arterySubmitted by: Malik Asghar Hussain
- The number of alveoli in human lungs is estimated to be around:_________?
A. 150 millions
B. 500 millions
C. 800 millions
D. 1 billionSubmitted by: Eesha Khalid
- Lungs are situated in the __________?
A. Abdominal cavity
B. Pericardial cavity
C. Buccal cavity
D. Thoracic cavitySubmitted by: Alina Zafar Awan
- The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called________?
A. Environmental biology
B. Social biology
C. Human biology
D. Both b and c
12 Comments
I think it’s correct answer is alveoli
its alveoli
option A is correct. This is alveoli
Alveoli is the right option, Sir!
Alveoli: The alveoli are the specialized air-sacs (outpouching) of 200 µm diameter. These are the structural and functional unit of the respiratory system. These are the primary site of exchange of oxygen and carbon dioxide.
Option “A” is correct.
Functional unit of lungs is “Alveoli”.
The right answer is alveoli
Functional units of lungs are called________?
A. Alveoli. Right ans
B. Air sacs. in ur app is this is right
C. Parabronchi
D. None of these
Alveoli is correct
Alveoli are the tiny ballon-shaped functional units of respiratory system where the exchange of gases takes place. These tiny structures are present in the lungs and are only one cell thick, allowing the relatively easy passage of oxygen and carbon dioxide (CO2) between the alveoli and blood vessels called capillaries.
Thanks to all of you for correction