Questions and Answers
Which gas is removed from the atmosphere during photosynthesis?
What process is most likely occurring in the muscles of a weightlifter who is experiencing fatigue during heavy lifting?
Anaerobic respiration
What function does ATP carry out in living organisms?
It is used to capture and transfer energy.
The energy captured in photosynthesis is used to power cellular respiration. During cellular respiration, energy is transferred to ______ molecules.
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Based on the observations of two bacterial species, which conclusion can be drawn?
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How are photosynthesis and cellular respiration different?
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Study Notes
Photosynthesis
- Carbon dioxide is absorbed from the atmosphere during the process of photosynthesis.
- Reactants for photosynthesis include carbon dioxide and water, leading to glucose production and oxygen release.
Anaerobic Respiration
- Weightlifters may experience muscle fatigue due to insufficient oxygen intake, leading to anaerobic respiration.
- Anaerobic respiration occurs when cells switch to this process, enabling small ATP production without oxygen.
- This process converts sugars into alcohol and carbon dioxide, resulting in significantly less ATP than aerobic respiration.
ATP Functionality
- ATP (adenosine triphosphate) serves as the "energy currency" of living cells, enabling energy capture and transfer.
- Energy is stored within the chemical bonds of ATP molecules and released to perform cellular work when bonds are broken.
- ATP is generated during cellular respiration, providing the energy necessary for various cellular activities.
Relationship Between Photosynthesis and Cellular Respiration
- The energy harnessed through photosynthesis is utilized in cellular respiration.
- Sunlight energy is stored in glucose molecules, which is later converted to ATP during cellular respiration for cellular functioning.
Bacterial Respiration
- In experiments with two bacteria species, species X produces carbon dioxide and water, while species Y produces ethyl alcohol and carbon dioxide.
- This indicates that species Y is anaerobic, as it relies on anaerobic cellular respiration which transforms sugars into ethyl alcohol and carbon dioxide in low-oxygen environments.
Differences Between Photosynthesis and Cellular Respiration
- Photosynthesis consumes carbon dioxide, whereas cellular respiration generates carbon dioxide.
- The reactants of photosynthesis are the end products of cellular respiration, establishing a cyclical relationship between the two processes.
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Test your knowledge on photosynthesis and cellular respiration with these flashcards. Explore key concepts such as the gases exchanged during photosynthesis and the energy processes in muscle cells during exercise.
