Respiratory system

Respiratory system

CHECKLIST

• Draw and label the internal structures of the human respiratory system and describe the breathing mechanism.

• Describe the movement and exchange of oxygen and carbon dioxide in the human body.

Multiple Choice

What is tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli

Multiple Choice

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis

Multiple Choice

Membrane layer which covers the lungs

• Visceral pleura
• Alveolar Ducts
• Alveoli
• Bronchi

Multiple Choice

Alveoli increase the surface area in the lungs to allow...

• More nutrients to be absorbed
• You to breathe faster
• You to breathe slower
• More O2 and CO2 to exchange

Multiple Choice

This is the airway that has two pairs of vocal chords attached to it

• Lungs
• Diaphragm
• Pharynx
• Larynx

Multiple Choice

Made up of spongy, elastic tissue that stretches as you breathe

• Alveoli
• Lungs
• Nasal Cavity
• Pharynx

Multiple Choice

What is the function of the respiratory system

• Take in O2 only
• Remove CO2 only
• Take in O2 ad remove CO2
• Make sugar

Multiple Choice

Passage way that moistens the air and has hairs to trap dust and particles

• Nasal cavity
• Bronchi
• Mouth cavity
• Larynx

Multiple Choice

Smaller tubes within the lungs

• Bronchioles
• Bronchi
• Lungs
• Alveoli

Multiple Choice

Muscular structure that helps to expand and contract the lungs, forcing air in and out

• Pharynx
• Nasal cavity
• Alveoli
• Diaphragm

Multiple Choice

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide

• Pharynx
• Diaphragm
• Alveoli
• Lungs

Multiple Choice

Two short tubes that carry air into the lungs

• Trachea
• Bronchioles
• Lungs
• Bronchi

Multiple Choice

This is a tube about 12cm long with c-shaped rings of cartilage to keep it open

• Nasal cavity

• Trachea

• Mouth Cavity

• Pharynx

Exchange of gasses

• Exchange of oxygen and carbon dioxide due to the difference in concentration in the alveolus and blood capillary.

• Diffusion of oxygen from the alveolus into the blood capillary.

• Formation of an unstable compound, that is, oxyhaemoglobin.

• Release of oxygen into the body cells.

• Oxidation of food during cellular respiration to release energy.

• Diffusion of carbon dioxide from the cell into the blood capillary then into the alveolus

Alveolus

• Factors that affect the efficiency of the alveolus to maximise the gaseous exchange are

• thickness,

• moisture,

• surface area, and

• network of capillaries.

Multiple Choice

Normally in the blood, hemoglobin is saturated with oxygen only up to

• 80%

• 95%

• 75%

• 50%

Multiple Choice

Blood arriving in the capillary from the body has a...

• Higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2)
• Higher concentration of oxygen (O2) and a lower concentration of carbon dioxide (CO2)

Multiple Choice

Gaseous exchange happens because of...

• Osmosis

• Respiration

• Diffusion

• Semi-permeable membranes

Multiple Choice

Each haemoglobin molecule can bind reversibly with

• one atom of oxygen

• one molecule of oxygen

• two molecules of oxygen

• four molecules of oxygen

Multiple Choice

When carbon dioxide binds directly with haemoglobin it forms

• carbaminohaemoglobin

• carboxyhaemoglobin

• carbon diooxyhaemoglobin

• carboglobin

Multiple Choice

The main blood vessel responsible for taking oxygenated blood to the body is the

• pulmonary artery

• aorta

• vena cava

• pulmonary veins

Multiple Choice

What happens when the intercostals contract during inhalation?

• The diaphragm relaxes

• The ribs are elevated

• Pressure in the lungs increases

• The size of the thoracic cavity decreases

Multiple Choice

What are the main muscles of inhalation?

• The diaphragm and intercostal muscles

• The scalenes and the abdominal muscles

• The diaphram and abdominal muscles

• The diaphragm and latissimus muscles

Multiple Choice

A contraction of the diaphragm during inhalation causes it to flatten. What else does the contraction result in?

• An increase in the volume of the thoracic cavity

• Increase in alveolar pressure

• A decrease in lung volume

• A decrease in the volume of the thoracic cavity

Multiple Choice

What are the products of cellular respiration?

• Energy (ATP), Water, and Carbon DIoxide.
• Water and Oxygen
• Oxygen and Carbon Dioxide
• Water and Energy (ATP)

Multiple Choice

Which gas is more soluble in blood (or water)?

• O2

• CO2

• both have the same solubility

Multiple Choice

Letter D is pointing to which Respiratory organ?

• Alveoli
• Diaphragm
• Lung
• Bronchi

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

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

Multiple Choice

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

• Ventilation
• Breathing
• Gas exchange
• Respiration

Multiple Choice

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

• carbon dioxide; oxygen

• oxygen; food

• oxygen; carbon dioxide

• carbon dioxide; water

Multiple Choice

Mechanical movement to inhale and exhale air

• Gas Exchange
• Respiration
• Breathing
• Transport