gas exchange in alveoli

Mechanical movement to inhale and exhale air

• Gas Exchange
• Respiration
• Breathing
• Transport

Gas exchange is needed to supply _____________ to cells and remove __________________

• carbon dioxide; oxygen

• oxygen; food

• oxygen; carbon dioxide

• carbon dioxide; water

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

The movement by diffusion of oxygen and carbon dioxide across a membrane

• Ventilation
• Breathing
• Gas exchange
• Respiration

Respiration is the 

• Intake of oxygen and release of carbon dioxide over a membrane
• Release of energy from food inside cells
• Mechanical movement to inhale and exhale air
• Feature that enable an animal to survive in its habitat

Tags

NGSS.MS-LS1-7

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces

• I and II only
• I only
• II and III
• I, II, and III

The air sacs that are covered with capillaries where gas exchange takes place.

• Bronchi

• Trachea

• Oxygen

• Alveoli

Name the structure through which gases enter and leave the body of an insect.

• tracheoles

• alveoli

• lungs

• spiracles

Which of the following shows the correct sequence of air passage into the lungs?

• trachea → larynx → air sacs → bronchi

• larynx → trachea → bronchi → air sacs

• air sacs → larynx → trachea → bronchi

• larynx → bronchi → trachea → air sacs

The exhaled air from our body consists mostly of__________ Check all boxes that apply

• carbon dioxide.

• nitrogen.

• oxygen.

• water vapour.

Which organ controls breathing?

• medulla oblongata

• lungs

• heart

• none of the above