Biology Form 4 Chapter 8.1

Which structure is involved in the breathing of a frog ?

• Rib cage

• Diaphragm

• Intercostal Muscle

• Buccopharyngeal cavity

What process occurs between alveolus

and blood capillary during gaseous

exchange?

• Osmosis

• Facilitated diffusion

• Active transport

• Diffusion

Which structure A, B, C and D gaseous exchange occur?

• A

• B

• C

• D

State two (2) structural adaptations of alveoli for gaseous exchange.

Which of the following structure

increases the efficiency of the fish’s

gills as a respiratory organ?

• A Blood capillary

• B Operculum

• C Lamellae

• D Gill arch

What is T ?

• Trachea

• Tracheole

• Spiracle

• Muscle

Insects such as grasshopper have ________________ that can speeds up the movement of gases.

The _____________ is to protect the gills in the fish.

What is the respiratory organ of humans?

What is the respiratory system for insects?