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Questions and Answers
What is the correct equation for aerobic respiration?
What is the correct equation for aerobic respiration?
Which components make up the human breathing system?
Which components make up the human breathing system?
What is the primary function of proteins in cells?
What is the primary function of proteins in cells?
Why is it more effective to breathe through the nose?
Why is it more effective to breathe through the nose?
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What is the approximate percentage of carbon dioxide in normal air?
What is the approximate percentage of carbon dioxide in normal air?
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Study Notes
Respiration
- Respiration is the release of energy from food using oxygen
- The word equation for aerobic respiration is: glucose + oxygen → carbon dioxide + water + energy
- Cells are mainly built from proteins that we get from meat or eggs
- Proteins are digested into amino acids, then transported to different cells to be used for energy
Growth and Repair
- Cells need energy to build proteins to rebuild and repair tissues.
Carbon Dioxide Detection
- Limewater turns from clear to milky when carbon dioxide is present.
- Limewater is a way to detect carbon dioxide.
- Normal air is 0.04% carbon dioxide
Human Breathing System
- The pathway of air to the lungs: nostrils → mouth → larynx → trachea → bronchi → bronchioles → alveoli
- Parts of the human breathing mechanism:
- Nostrils
- Mouth
- Larynx
- Trachea
- Bronchi
- Bronchioles
- Alveoli
- Diaphragm
- Intercostal muscles
- Lungs are in the thorax, protected by the ribcage and separated from the abdomen by the diaphragm
- It is better to breathe through your nose as the air is warmed and filtered
- Larynx: voice box, contains vocal cords; windpipe divides into two bronchi
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Description
Test your knowledge on the human respiratory system and the process of respiration. This quiz covers the release of energy from food, the pathways of air, and the detection of carbon dioxide. Understand the importance of proteins in cell growth and repair as well.
