Respiratory System + Cellular Respiration

Question 1

What is cellular respiration?

Answer 1

The process to provide oxygen and remove carbon dioxide.

Question 2

Cellular Respiration Formula:

Answer 2

C6 H12 O6(food) + 6 O2(inhale) ——> 6 CO2(exhale) + 6 H2O(water) + energy

Question 3

Anatomy of the respiratory system:

7

Answer 3

A) Nasal Cavities
B) Pharynx
C) Larynx
D) Trachea
E) Bronchi
F) Bronchioles
G) Alveoli

Question 4

Definition of diffusion.

Answer 4

The movement of air particles from an area of high concentration to low concentration.

Question 5

Explain the Nasal Cavities

Answer 5

• Air goes through the nostrils
• Two chambers in the nose.
• Contain Small hairs called cilia which FILTER dust particles.
• Contain small blood vessels to warm the air and mucous, to moisten the air.

Question 6

Explain the Pharynx

Answer 6

Both food and air passes through it

Question 7

Explain the Larynx

Answer 7

• made up of mostly cartilage
• connects the pharynx to the trachea
• the epiglottis(flap) shuts the opening of the trachea during the swallowing
• the trachea also contains the vocal cords

Question 8

Explain the Trachea

Answer 8

• made up of rings of cartilage to keep open at all times

- lined with mucous and cilia that moves dust particles towards the mouth and away from the lungs

Question 9

Explain the Bronchi

Answer 9

• the trachea splits into 2 bronchi
• one tube going into each lung
• made up of cartilage, mucous and cilia

Question 10

Explain the Bronchioles

Answer 10

• smaller tubes of bronchi

- each bronchiole ends with a cluster of alveoli

Question 11

During inhalation:

Answer 11

• Rib cage lifts up
• Diaphragm contracts and moves downward toward abdomen
• This causes the volume to increase in the lungs, thus decreasing the pressure
• Air pressure in lungs is therefore lower the than the pressure outside the body
• The gases move through diffusion

Question 12

During Exhalation:

Answer 12

• The muscles and the diaphragm relax
• Making the rib cage downward, the diaphragm move upward
• This causes a decrease in volume and an increase in pressure in the lungs
• The air moves through the principle of diffusion