Movement & Exchange of Gases in tht Human Body

Exchange of gas happens at

• Alvioli

• Bronchus

• Trachea

• Body cells

Inhale air has high concentration of

• Oxygen

• Carbon dioxide

• Oxyhaemoglobin

• Blood

Oxyhaemoglobin form from combination of

• Haemoglobin

• Oxygen

• Glucose

• Water

Blood with oxyhaemoglobin is transported from lungs to

• Other parts of body

• Brain

• Heart

• Spinal cord

Why does oxyhaemoglobin decompose at body cells?

• Being partial pressure

• Being unstable

• Producing energy

• Producing glucose

Which of following is the correct cellular respiration process?

• Glucose + Oxygen --> Carbon dioxide + energy

• Glucose + Oxygen --> Carbon dioxide + water

• Glucose + Oxygen --> Carbon dioxide + water + energy

• Oxygen --> Carbon dioxide + water + energy

The adaptations of alveolar ....

• Increase efficiency

• Maximise exchange of gas

• Decrease efficiency

• Minimise exchange of gas

What is the adaptations of alveolar structure

• Thin wall of alveolus and blood capillary

• Moist wall of alveolus

• Large surface area of alveolus

• Alveolus covered by network of capillary

Gaseous exchange is by process of

• respiration

• diffusion

Oxygen diffuses from

• Trachea to lung

• Alveolus to blood capillary

• Blood capillary to alveolus

• Lung to trachea