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 (a)   that can speeds up the movement of gases.

The (a)   is to protect the gills in the fish.

What is the respiratory organ of humans?

(a)  

What is the respiratory system for insects?

(a)