Biology Practice Test:
Human Respiratory
System
Time: 30 Minutes | Total Marks: 25
Section A: Multiple Choice Questions (5 Marks)
Choose the correct answer for each:
1. The chemical reaction between glucose and oxygen to release
energy is called:
a) Inhaling
b) Respiration
c) Exhaling
d) Circulation
2. Which structure is a "tough, dome-shaped sheet of muscle" at
the bottom of the chest?
a) Trachea
b) Alveoli
c) Diaphragm
d) Bronchioles
3. The microscopic air sacs where gas exchange occurs are known
as:
a) Bronchi
b) Alveoli
, c) Cilia
d) Nasal cavities
4. What are the small hair-like structures that move mucus
out of the lungs?
a) Villi
b) Bronchioles
c) Trachea
d) Cilia
Section B: Short Answer Questions (10 Marks)
Answer the following in 2-3 sentences:
1. Define Respiration. According to your book, what are
the three stages of respiration in the human body?
2. The "Voice Box": What is the scientific name for the
voice box, and how does it produce sound?
3. Gas Exchange: Explain how oxygen moves from the
lungs into the blood.
4. Lungs Structure: Why is it said that "the whole lung is
like a huge sponge"?
5. Nasal Cavity: Why is it better to breathe through your
nose than your mouth? (Hint: Think about what
happens in the nasal cavities)
Human Respiratory
System
Time: 30 Minutes | Total Marks: 25
Section A: Multiple Choice Questions (5 Marks)
Choose the correct answer for each:
1. The chemical reaction between glucose and oxygen to release
energy is called:
a) Inhaling
b) Respiration
c) Exhaling
d) Circulation
2. Which structure is a "tough, dome-shaped sheet of muscle" at
the bottom of the chest?
a) Trachea
b) Alveoli
c) Diaphragm
d) Bronchioles
3. The microscopic air sacs where gas exchange occurs are known
as:
a) Bronchi
b) Alveoli
, c) Cilia
d) Nasal cavities
4. What are the small hair-like structures that move mucus
out of the lungs?
a) Villi
b) Bronchioles
c) Trachea
d) Cilia
Section B: Short Answer Questions (10 Marks)
Answer the following in 2-3 sentences:
1. Define Respiration. According to your book, what are
the three stages of respiration in the human body?
2. The "Voice Box": What is the scientific name for the
voice box, and how does it produce sound?
3. Gas Exchange: Explain how oxygen moves from the
lungs into the blood.
4. Lungs Structure: Why is it said that "the whole lung is
like a huge sponge"?
5. Nasal Cavity: Why is it better to breathe through your
nose than your mouth? (Hint: Think about what
happens in the nasal cavities)
