Gaseous Exchange(Biology ) Questions and answers for exam Preparation

Question 1. Dome-shaped part under chest is called

lungs
bronchi
diaphragm
alveoli

Explanation:-

Answer: Option C. -> diaphragm
Answer: (c).diaphragm

Question 2. Respiration at organism level is known as

breathing
ventilation
Both a and b
inhalation

Explanation:-

Answer: Option C. -> Both a and b
Answer: (c).Both a and b

Question 3. Tiny thin walled ducts which are present in lungs of birds are called

alveoli
bronchi
parabronchi
bronchioles

Explanation:-

Answer: Option C. -> parabronchi
Answer: (c).parabronchi

Question 4. Respiration which takes place during day time is called

aerobic
respiration
photorespiration
anaerobic

Explanation:-

Answer: Option C. -> photorespiration
Answer: (c).photorespiration

Question 5. In humans' ciliated epithelium, mucus membrane filter foreign particles to enter in

oral cavity
nasal cavity
buccal cavity
digestive tract

Explanation:-

Answer: Option B. -> nasal cavity
Answer: (b).nasal cavity

Question 6. After the formation of hemoglobin carbon dioxide move from blood into

Thoracic cavity
Abdominal cavity
Lumbar
Alveolar

Explanation:-

Answer: Option D. -> Alveolar
Answer: (d).Alveolar

Question 7. The peura (elastic membrane) covers

Chest cavity
plueral cavity
abdominal cavity
diaphragm

Explanation:-

Answer: Option B. -> plueral cavity
Answer: (b).plueral cavity

Question 8. The diaphragm flattens downwards as it's muscles

relax
contract
shorter
thick

Explanation:-

Answer: Option B. -> contract
Answer: (b).contract

Question 9. During exhalation the external intercostals muscles

Relax
Contract
Wilt
Shrink

Explanation:-

Answer: Option A. -> Relax
Answer: (a).Relax

Question 10. The complemented air is about

1300cm cube
1700cm cube
1500cm cube
1400cm cube

Explanation:-

Answer: Option C. -> 1500cm cube
Answer: (c).1500cm cube