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Questions and Answers
Which of the following statements accurately describes the relationship between respiration and photosynthesis in plants?
Which of the following statements accurately describes the relationship between respiration and photosynthesis in plants?
- Photosynthesis occurs only at night, and respiration occurs only during the day.
- Both respiration and photosynthesis occur continuously, day and night.
- Respiration is continuous day and night, but photosynthesis only happens during the day. (correct)
- Respiration occurs only at night, while photosynthesis occurs only during the day.
The intercostal muscles play no role in the process of ventilation.
The intercostal muscles play no role in the process of ventilation.
False (B)
Briefly explain how the structure of alveoli is adapted to facilitate efficient gas exchange.
Briefly explain how the structure of alveoli is adapted to facilitate efficient gas exchange.
Alveoli have thin walls, a large surface area, and are surrounded by numerous capillaries, all of which promote efficient gas exchange.
__________ in cigarette smoke reduces the oxygen-carrying capacity of the blood, while __________ is a carcinogenic substance that can cause lung cancer, and __________ is a substance that can cause a build up of plaque in arteries.
__________ in cigarette smoke reduces the oxygen-carrying capacity of the blood, while __________ is a carcinogenic substance that can cause lung cancer, and __________ is a substance that can cause a build up of plaque in arteries.
Match the component of the human thorax with its primary function:
Match the component of the human thorax with its primary function:
Which of the following statements accurately describes the role of ATP in living organisms?
Which of the following statements accurately describes the role of ATP in living organisms?
Anaerobic respiration produces more ATP per glucose molecule than aerobic respiration.
Anaerobic respiration produces more ATP per glucose molecule than aerobic respiration.
What is the primary difference between aerobic and anaerobic respiration in terms of oxygen requirement?
What is the primary difference between aerobic and anaerobic respiration in terms of oxygen requirement?
In yeast cells, anaerobic respiration produces ethanol and ______.
In yeast cells, anaerobic respiration produces ethanol and ______.
Which of the following products are created using anaerobic respiration by yeast?
Which of the following products are created using anaerobic respiration by yeast?
Which bacteria is responsible for the production of yogurt through anaerobic respiration?
Which bacteria is responsible for the production of yogurt through anaerobic respiration?
Explain the role of diffusion in gas exchange within organisms.
Explain the role of diffusion in gas exchange within organisms.
Match the type of respiration with its main characteristic:
Match the type of respiration with its main characteristic:
Flashcards
Alveolus
Alveolus
Tiny air sacs in the lungs where gas exchange occurs.
Ventilation
Ventilation
The process of breathing in and out; involves ribs and intercostal muscles.
Inhale
Inhale
The act of taking air into the lungs.
Exhale
Exhale
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Effects of smoking
Effects of smoking
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ATP
ATP
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Aerobic respiration
Aerobic respiration
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Anaerobic respiration
Anaerobic respiration
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Difference between aerobic and anaerobic respiration
Difference between aerobic and anaerobic respiration
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Anaerobic respiration in humans
Anaerobic respiration in humans
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Anaerobic respiration in yeast
Anaerobic respiration in yeast
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Gas exchange
Gas exchange
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Diffusion in gas exchange
Diffusion in gas exchange
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Study Notes
Respiration and Gas Exchange
- Respiration produces ATP from glucose in all living organisms.
- ATP is the energy supply for cells.
- Aerobic respiration is defined as follows...
- The word equation for aerobic respiration is... glucose + oxygen → carbon dioxide + water + energy
- Anaerobic respiration is defined as follows...
- The word equation for anaerobic respiration in humans is... glucose → lactic acid + energy
- The word equation for anaerobic respiration in yeast is... glucose → ethanol + carbon dioxide + energy
- Bread and alcohol are produced using anaerobic respiration by yeast.
- Yoghurt is produced via anaerobic respiration by Lactobacillus bacteria using lactose sugar.
- Diffusion is crucial for gas exchange.
- Respiration releases heat.
- Gas exchange occurs in plants, particularly in leaves.
- Gas exchange also occurs in the human alveoli.
- Plant respiration is ongoing day and night, but photosynthesis only occurs during the day.
- Human lung structures include trachea, bronchi, bronchioles, alveoli, ribs, intercostal muscles, and the diaphragm.
- Inhalation and exhalation are driven by movements of the ribs and intercostal muscles, as well as the diaphragm.
- Alveoli are adapted for gas exchange due to their structure.
- Smoking impacts health negatively via carbon monoxide, nicotine, and tar effects (e.g., lung cancer, circulatory issues).
- Exercise affects breathing rate.
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