Respiration and Gas exchange

Multiple Choice

What is the name of two main branches from the trachea (one to each lung)?

• bronchi

• alveoli

• capillaries

• bronchioles

Multiple Choice

Given the following structures:

1. alveoli

2. bronchi

3. bronchioles

Which of the following is the correct order in which air would flow after inhalation?

• 1,2,3

• 2,1,3

• 2,3,1

• 3,2,1

Multiple Choice

What adaptations does the alveoli have for efficient gas exchange?

• thick walls

• thin walls

• small surface area

Multiple Choice

what is found around alveoli?

• capillaries

• pleura

• lymphatic nodes

• saliva

Multiple Choice

Diaphragm is

• part of lungs

• muscle that helps in breathing

• throat muscle

• structure in bones

Multiple Choice

During gas exchange what enters from alveoli to the capillaries?

• CO₂

• CO

• O₂

• nitrogen

Multiple Choice

Mechanical movement to inhale and exhale air

• Gas Exchange
• Respiration
• Breathing
• Transport

Multiple Choice

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

• Ventilation
• Breathing
• Gas exchange
• Respiration

Multiple Choice

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

Multiple Choice

The trachea leads to the...

• Bronchioles
• Bronchi
• Esophagus
• Pulmonary Vessel

Multiple Choice

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

• Bronchi

• Trachea

• Oxygen

• Alveoli

Multiple Choice

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

Multiple Choice

What is the site of gas exchange?

• alveoli

• bronchus

• nose

• trachea

Open Ended

What is the role of cilia and mucus in protecting us from diseases?

Fill in the Blank

increase number of molecules that can diffuse at the same time

Fill in the Blank

prevents cells from drying out

Multiple Select

Events occur during inhalation

• Diaphragm relax

• internal intercostal muscle contract

• Ribs move up and outwards

• lung pressure increase

• Volume increase