Respiratory System in Humans & Animals

The diagram below shows the tracheal system in a grasshopper. What is the name of the structure in the grasshopper's tracheal system that is filled with air to speed up the delivery of respiratory gas during active movement?

• Trachea

• Spiracles

• Tracheole

• Air sacs

What are the characteristics of the respiratory structure of fish that enable the rapid exchange of respiratory gases?

• A large number of filaments and lamellae

• Lamella membrane is thin and supplied with many blood capillaries.

• Moist skin

• The skin is thin and highly permeable.

Which of the following is the respiratory structure of a frog?

• Trachea

• Alveolus

• Gills

• Lungs

What is the adaptation of the lungs of the frog for gaseous exchange?

• Folded surface & moist

• Thin & flat

• Smooth surface & dry

• Thick & moist

What is the adaptation of the human alveoli for gaseous exchange?

• Large number of alveoli that are rich with blood capillaries

• Surface of the alveoli is folded and thin

• Surface of the alveoli is smooth & dry

• Wall of the alveoli is thick and moist

Which of the following is the correct sequence of the pathway of oxygen entering the tracheal system?

• Trachea > spiracles > tracheole > body cells

• Spiracles > trachea > tracheole > body cells

• Tracheole > trachea > spiracles > body cells

• Body cells > trachea > tracheole > spiracle

Which of the following structures involved in the breathing mechanism of a frog?

• Ribcage

• Intercostal muscle

• Diaphragm

• Buccopharyngeal cavity

Which of the following occurs during exhalation in a fish?

• 
• 
• 
• 

What is the correct sequence of oxygen movement from the alveolus to the blood capillaries in humans?

• J, K, M, L

• K, L, J, M

• K, M, L, J

• L, K,M, J

Asthma is one of the diseases related to the human respiratory system.

What is the cause of asthma?

• Bronchiole tube become smaller.

• ALveolus loses its elasticity.

• Bronchiole tube is blocked.

• Alveolus wall is damaged.