brodidit for students
ہوم / مشق / دسویں جماعت / حیاتیات / گیسوں کا تبادلہ
گیسوں کا تبادلہ
6 سوالات: دسویں جماعت حیاتیات، جوابات اور وضاحت کے ساتھ۔
جوابی کنجی کے ساتھ قابلِ پرنٹ ورک شیٹ
-
Gaseous exchange in plants takes place through the:
- 1 Xylem
- 2 Stomata
- 3 Phloem
- 4 Roots only
جواب دیکھیں
درست جواب: Stomata
Stomata let carbon dioxide and oxygen move in and out of leaves.
-
Gaseous exchange in humans takes place in the:
- 1 Trachea
- 2 Bronchi
- 3 Alveoli
- 4 Larynx
جواب دیکھیں
درست جواب: Alveoli
Alveoli are thin walled air sacs surrounded by capillaries.
-
The muscle that helps in breathing is the:
- 1 Diaphragm
- 2 Biceps
- 3 Heart
- 4 Stomach
جواب دیکھیں
درست جواب: Diaphragm
The diaphragm and intercostal muscles change the volume of the chest.
-
During inhalation, the diaphragm:
- 1 Contracts and flattens
- 2 Stays still
- 3 Stops moving
- 4 Relaxes and rises
جواب دیکھیں
درست جواب: Contracts and flattens
It contracts and flattens, enlarging the chest cavity.
-
Oxygen is carried in the blood mainly by:
- 1 Plasma
- 2 Platelets
- 3 White blood cells
- 4 Haemoglobin
-
Which disease inflames the lungs and fills the alveoli with fluid?
- 1 Pneumonia
- 2 Anaemia
- 3 Typhoid
- 4 Diabetes
جواب دیکھیں
درست جواب: Pneumonia
Pneumonia is an infection that affects the alveoli.