Science: Middle School: Grades 6, 7 and 8 Quiz - Respiration 2 (Questions)

This Science quiz is called 'Respiration 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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In Science, respiration is the process by which oxygen is delivered from the environment to the cells for cellular exchange. In its proper terminology, it includes the entire process. In terms of visibility, respiration is simply a term for breathing.

How much do you know about what exactly goes on in the process of respiration? Find out in this quiz.

1. The diaphragm is .......
[ ] a lining of the lungs
[ ] a muscle which connects the ribs
[ ] a sheet of muscle under the lungs
[ ] the windpipe
2. When we inhale which one of the following is NOT correct?
[ ] More space is formed in the thorax (volume increases)
[ ] The air pressure in the chest (thorax) increases
[ ] The diaphragm contracts
[ ] The rib muscles contract
3. When we exhale which one of the following is NOT correct?
[ ] Less space is formed in the thorax (volume decreases)
[ ] The air is forced out of the thorax
[ ] The diaphragm relaxes
[ ] The rib muscles contract
4. The trachea (windpipe) is kept open because it is made of rings of .......
[ ] bone
[ ] capillaries
[ ] cartilage
[ ] muscle
5. Oxygen is transported to all parts of the body by .......
[ ] blood plasma
[ ] dissolving in water
[ ] red blood cells
[ ] white blood cells
6. For aerobic respiration, which two substances are needed?
[ ] Glucose and carbon dioxide
[ ] Glucose and water
[ ] Oxygen and glucose
[ ] Oxygen and water
7. Which of the following are products of respiration?
[ ] Energy, carbon dioxide and water
[ ] Energy, glucose and carbon dioxide
[ ] Energy, oxygen and glucose
[ ] Energy, oxygen and water
8. Respiration occurs in .......
[ ] only cells in the arms and legs
[ ] only heart cells
[ ] only muscle cells
[ ] all cells
9. Which of the following is NOT true about the effect of exercise?
[ ] Breathe more quickly
[ ] Heart beats faster
[ ] Less oxygen and glucose get to the muscles
[ ] Pulse rate increases
10. Which of the following is NOT involved in removing carbon dioxide from the body?
[ ] Carbon dioxide diffuses into blood plasma
[ ] Carbon dioxide diffuses into the alveoli
[ ] Carbon dioxide dissolves in water
[ ] Carbon dioxide is transported in bloodstream to lungs
Science: Middle School: Grades 6, 7 and 8 Quiz - Respiration 2 (Answers)
1. The diaphragm is .......
[ ] a lining of the lungs
[ ] a muscle which connects the ribs
[x] a sheet of muscle under the lungs
[ ] the windpipe
2. When we inhale which one of the following is NOT correct?
[ ] More space is formed in the thorax (volume increases)
[x] The air pressure in the chest (thorax) increases
[ ] The diaphragm contracts
[ ] The rib muscles contract
The air pressure in the chest (thorax) decreases
3. When we exhale which one of the following is NOT correct?
[ ] Less space is formed in the thorax (volume decreases)
[ ] The air is forced out of the thorax
[ ] The diaphragm relaxes
[x] The rib muscles contract
The rib muscles relax
4. The trachea (windpipe) is kept open because it is made of rings of .......
[ ] bone
[ ] capillaries
[x] cartilage
[ ] muscle
5. Oxygen is transported to all parts of the body by .......
[ ] blood plasma
[ ] dissolving in water
[x] red blood cells
[ ] white blood cells
Red blood cells have no nucleus so there is more room to carry oxygen
6. For aerobic respiration, which two substances are needed?
[ ] Glucose and carbon dioxide
[ ] Glucose and water
[x] Oxygen and glucose
[ ] Oxygen and water
Aerobic respiration occurs in animals and plants
7. Which of the following are products of respiration?
[x] Energy, carbon dioxide and water
[ ] Energy, glucose and carbon dioxide
[ ] Energy, oxygen and glucose
[ ] Energy, oxygen and water
8. Respiration occurs in .......
[ ] only cells in the arms and legs
[ ] only heart cells
[ ] only muscle cells
[x] all cells
9. Which of the following is NOT true about the effect of exercise?
[ ] Breathe more quickly
[ ] Heart beats faster
[x] Less oxygen and glucose get to the muscles
[ ] Pulse rate increases
10. Which of the following is NOT involved in removing carbon dioxide from the body?
[ ] Carbon dioxide diffuses into blood plasma
[ ] Carbon dioxide diffuses into the alveoli
[x] Carbon dioxide dissolves in water
[ ] Carbon dioxide is transported in bloodstream to lungs