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Questions and Answers
What is the purpose of respiration in organisms?
What is the purpose of respiration in organisms?
- To eliminate waste from the body
- To facilitate reproduction in organisms
- To provide energy for cellular functions (correct)
- To regulate body temperature
Why does running make a person breathe faster?
Why does running make a person breathe faster?
- To expel excess carbon dioxide from the body
- To cool down the body temperature
- To increase the heart rate for better circulation
- To supply more oxygen to the muscles for energy production (correct)
What is the smallest structural and functional unit of an organism?
What is the smallest structural and functional unit of an organism?
- Organ
- Organ system
- Tissue
- Cell (correct)
What are the functions performed by each cell of an organism?
What are the functions performed by each cell of an organism?
What is the purpose of breathing rapidly after physical activity?
What is the purpose of breathing rapidly after physical activity?
Flashcards
Respiration
Respiration
The process of taking in oxygen and releasing carbon dioxide, providing energy for cells.
Why we breathe faster during exercise
Why we breathe faster during exercise
Increased physical activity demands more energy, requiring more oxygen and resulting in faster breathing to meet this need.
Cell
Cell
The basic building block of all living things, performing essential life functions.
Functions of a cell
Functions of a cell
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Why we breathe hard after exercise
Why we breathe hard after exercise
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Study Notes
Cellular Biology
- The smallest structural and functional unit of an organism is the cell.
Cellular Functions
- Each cell of an organism performs various functions such as:
- Regulating what enters and leaves the cell
- Maintaining a stable internal environment
- Responding to stimuli
- Growing and reproducing
- Metabolizing and producing energy
Respiration
- Respiration is the process by which cells generate energy from the food they consume.
- The purpose of respiration in organisms is to generate energy for various cellular activities.
Respiratory Response to Exercise
- During physical activities like running, the body's oxygen demand increases to meet the energy needs of the muscles.
- Running makes a person breathe faster to take in more oxygen and expel more carbon dioxide.
- Breathing rapidly after physical activity helps to:
- Replenish oxygen stores
- Remove excess lactic acid
- Regulate body temperature
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Description
Test your knowledge of respiration in organisms with this quiz! Explore the process of breathing, exchange of gases, and the importance of respiration in living organisms.
