Respiratory system

What is the function of respiratory system?

• To produce energy

• For gaseous exchange

In order for efficient gaseous exchange to happen, the

• TSA/V ratio should be large

• TSA/V ratio should be small

• TSA/V ratio should be equal to 1

• TSA/V ratio should be equal to 0

Why should the respiratory surface be moist?

• So it's easier for the gas to diffuse in

• So it's harder for the gas to diffuse out

• So oxygen can dissolve in them

• So carbon dioxide can dissolve in them

Which of the following is not a type of adaptation for efficient gaseous exchange

• Large TSA/V ratio

• Thin respiratory structure

• Moist respiratory structure

• Strong lungs

• Network of blood capillaries

Skin and lungs are the respiratory structure of?

• Insect

• Fish

• Frog

• Human

Filament and lamella are the respiratory structure of?

• Insect

• Fish

• Frog

• Human

The buccal cavity is raised and the operculum cavity becomes smaller during

• Inhalation

• Exhalation

• Echolocation

• Transpiration

Write down what happens to the external and internal intercostal muscles, ribcage, and diaphragm during inhalation

The blood that enters the lung has higher partial pressure of

• Oxygen

• Carbon dioxide

The partial pressure of carbon dioxide is _____ in the cell than tissue capillaries

• higher

• lower