Respiratory System - Responses To Exercise
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Questions and Answers
- 1.
Name the two systems that exist within the respiratory system itself
- A.
High pressure system and low pressure system
- B.
Lateral and medial respiratory systems
- C.
Internal and External respiratory systems
- D.
Superior and Inferior respiratory systems
Correct Answer
C. Internal and External respiratory systemsExplanation
The respiratory system consists of two main systems: the internal respiratory system and the external respiratory system. The internal respiratory system includes the lungs, where the exchange of oxygen and carbon dioxide takes place. It also includes the bronchial tree, which helps in the transportation of air to and from the lungs. The external respiratory system includes the nose, mouth, throat, and trachea, which are responsible for the intake and filtration of air. Both systems work together to ensure the proper functioning of the respiratory system and the exchange of gases in the body.Rate this question:
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- 2.
Which system involves the exchange of gases between the blood and cells?
- A.
Lateral respiratory system
- B.
Internal respiratory system
- C.
Inferior respiratory system
- D.
High pressure respiratory system
Correct Answer
B. Internal respiratory systemExplanation
The internal respiratory system involves the exchange of gases between the blood and cells. This system includes the lungs, where oxygen is taken in and carbon dioxide is released. Oxygen from the lungs is transported to the cells through the bloodstream, and carbon dioxide produced by the cells is carried back to the lungs to be exhaled. This system ensures that oxygen is delivered to the cells for cellular respiration and that waste carbon dioxide is removed from the body.Rate this question:
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- 3.
Which system works closely with the respiratory system to ensure there is a ready supply of oxygen for the working muscles?
- A.
Muscular system
- B.
Skeletal system
- C.
Energy systems
- D.
Cardio - vascular system
Correct Answer
D. Cardio - vascular systemExplanation
The cardiovascular system works closely with the respiratory system to ensure there is a ready supply of oxygen for the working muscles. The respiratory system is responsible for bringing in oxygen into the body, while the cardiovascular system transports the oxygen-rich blood to the muscles. The heart pumps the oxygenated blood throughout the body, delivering oxygen to the muscles and removing waste products such as carbon dioxide. This collaboration between the respiratory and cardiovascular systems ensures that the muscles receive the necessary oxygen for energy production during physical activity.Rate this question:
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- 4.
The cardiac notch is there to provide…
- A.
Space for the left lung to inflate when the body is working intensely
- B.
Space for the aorta to transport blood to the pulmonary artery
- C.
Space for diaphragm to contract beyond maximum when under intense pressure
- D.
Space for the heart to sit in as the left lung is slightly smaller
Correct Answer
D. Space for the heart to sit in as the left lung is slightly smallerExplanation
The cardiac notch is a small indentation in the left lung that allows space for the heart to sit in. This is because the left lung is slightly smaller than the right lung, and the cardiac notch accommodates for this size difference. The heart needs a space to fit in the thoracic cavity, and the cardiac notch provides that space specifically for the heart.Rate this question:
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- 5.
Which gas has approximately the same percentage of air when inhaled and exhaled
- A.
Nitrogen
- B.
Oxygen
- C.
Carbon Dioxide
Correct Answer
A. NitrogenExplanation
When we inhale, the air we breathe in contains approximately 78% nitrogen. Similarly, when we exhale, the air we breathe out also contains approximately 78% nitrogen. This is because nitrogen is an inert gas and does not undergo any significant chemical reactions in our body. On the other hand, the percentage of oxygen decreases when we exhale because our body utilizes oxygen during various metabolic processes. Carbon dioxide, on the other hand, is produced as a waste product during cellular respiration and is exhaled in higher concentrations compared to its percentage in inhaled air.Rate this question:
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- 6.
Which gas sees an increase in percentage when exhaled from the body?
- A.
Nitrogen
- B.
Oxygen
- C.
Carbon dioxide
Correct Answer
A. NitrogenExplanation
When we exhale, the percentage of nitrogen in the exhaled air increases. This is because our body does not utilize nitrogen during respiration, so the concentration of nitrogen in the air we exhale is higher compared to the air we inhale. On the other hand, the percentage of oxygen and carbon dioxide decreases when we exhale because our body uses oxygen for cellular respiration and produces carbon dioxide as a waste product, leading to a decrease in their concentrations in exhaled air.Rate this question:
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- 7.
From approximately 21% of inhaled oxygen, how much of this amount is then exhaled from the body?
- A.
10%
- B.
4%
- C.
6%
- D.
1%
Correct Answer
B. 4%Explanation
Approximately 4% of the inhaled oxygen is exhaled from the body. This is because during respiration, oxygen is taken in by the body and used for various metabolic processes. The oxygen that is not used is then expelled as carbon dioxide during exhalation. Since only a small portion of the inhaled oxygen is exhaled, the correct answer is 4%.Rate this question:
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- 8.
As the oxygen enters the muscle cell, which organelle does it work combine with fats and carbohydrates to ensure energy production?
- A.
Golgi complex
- B.
Mitochondria
- C.
Lysosomes
- D.
Ribosomes
Correct Answer
B. MitochondriaExplanation
The mitochondria is the organelle responsible for energy production in the cell. It combines oxygen with fats and carbohydrates through a process called cellular respiration to produce ATP, the main source of energy for the cell. The golgi complex is involved in protein modification and packaging, lysosomes are responsible for intracellular digestion, and ribosomes are involved in protein synthesis. Therefore, the mitochondria is the correct organelle that works with oxygen to ensure energy production.Rate this question:
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- 9.
During exercise the increase in breathing rate is as a result of the body demanding more oxygen?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
During exercise, the body's demand for oxygen increases because the muscles need more energy to perform the physical activity. To meet this increased demand, the breathing rate increases to bring in more oxygen and remove carbon dioxide from the body. This allows the oxygen to be transported to the muscles through the bloodstream, enabling them to continue functioning efficiently. Therefore, the statement that the increase in breathing rate during exercise is a result of the body demanding more oxygen is true.Rate this question:
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- 10.
An increase in breathing may occur before muscular contractions occur.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Initial responses of the respiratory system are neural in nature i.e. they come from neural detectors in the muscle and the command centre in the brain
As the intensity of breathing increases, this represents an increased metabolism in the muscles e.g. CO2 production is detectedRate this question:
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- 11.
Identify the following short term responses of the respiratory system to exercise
- A.
Decrease in breathing rate
- B.
Increase in respiratory volume
- C.
Decrease in tidal volume
- D.
CO2 production increases
Correct Answer(s)
B. Increase in respiratory volume
D. CO2 production increasesExplanation
During exercise, the demand for oxygen by the muscles increases, leading to an increase in respiratory volume. This means that the respiratory system takes in more air per breath to deliver more oxygen to the muscles. Additionally, as exercise intensity increases, the body produces more carbon dioxide as a byproduct of increased metabolism. This leads to an increase in CO2 production. Therefore, the correct answer is an increase in respiratory volume and CO2 production increases.Rate this question:
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- 12.
The lungs will grow in size following long term physical fitness training
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The lungs do not actually grow in size following long term physical fitness training. However, regular exercise and physical fitness training can improve lung function and capacity by strengthening the muscles involved in breathing and increasing the efficiency of oxygen uptake and distribution in the body.Rate this question:
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- 13.
Gaseous exchange at the alveoli stays the same following long term physical fitness training
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Increase in capillary density surrounding the alveoli thus improving gaseous exchangeRate this question:
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- 14.
Long term adaptations of the respiratory system are permanent
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
All of these effects only occur if regular exercise is maintained. If the exercise is stopped for a period of time then the training effects will be lostRate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
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May 04, 2017Quiz Created by
Ags2511
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