Podcast
Questions and Answers
Which of the following accurately represents the relationship between photosynthesis and cellular respiration?
Which of the following accurately represents the relationship between photosynthesis and cellular respiration?
- Photosynthesis is an anabolic process, while cellular respiration is also anabolic.
- Photosynthesis produces glucose and oxygen, which are then used in cellular respiration. (correct)
- Cellular respiration converts solar energy into chemical energy, which is then stored by photosynthesis.
- Both processes occur simultaneously in the same organelles.
Decomposers obtain energy directly from sunlight, similar to producers.
Decomposers obtain energy directly from sunlight, similar to producers.
False (B)
Describe the impact of biotechnology, specifically the use of GMOs in farming, on food security and the environment. Include both positive and negative aspects.
Describe the impact of biotechnology, specifically the use of GMOs in farming, on food security and the environment. Include both positive and negative aspects.
GMOs can increase crop yields and reduce the need for pesticides, enhancing food security. However, they also raise environmental and ethical concerns, such as potential impacts on biodiversity and questions about corporate control over food production.
In the equation for photosynthesis, $CO_2 + H_2O + sunlight \rightarrow ______ + O_2$, the missing product is ______.
In the equation for photosynthesis, $CO_2 + H_2O + sunlight \rightarrow ______ + O_2$, the missing product is ______.
Match each term related to food chains and webs with its correct description.
Match each term related to food chains and webs with its correct description.
Which of the following factors primarily determines the carrying capacity of an environment for a particular species?
Which of the following factors primarily determines the carrying capacity of an environment for a particular species?
Sustainable agriculture primarily focuses on maximizing crop yields regardless of environmental impact.
Sustainable agriculture primarily focuses on maximizing crop yields regardless of environmental impact.
Explain how climate change and poverty can interact to threaten food security.
Explain how climate change and poverty can interact to threaten food security.
The process by which plants convert sunlight into chemical energy is called ______.
The process by which plants convert sunlight into chemical energy is called ______.
Match the farming method with its primary goal.
Match the farming method with its primary goal.
What is the primary role of decomposers in an ecosystem?
What is the primary role of decomposers in an ecosystem?
Genetically Modified Organisms (GMOs) always require more chemical inputs than conventional crops.
Genetically Modified Organisms (GMOs) always require more chemical inputs than conventional crops.
Explain how the over-reliance on monoculture farming can impact sustainable agriculture practices and overall food security.
Explain how the over-reliance on monoculture farming can impact sustainable agriculture practices and overall food security.
The process of releasing energy from food using oxygen is known as ______ respiration.
The process of releasing energy from food using oxygen is known as ______ respiration.
Match each concept with its corresponding description related to ecosystems.
Match each concept with its corresponding description related to ecosystems.
Which of the following agricultural practices is most likely to increase the long-term carrying capacity of an agricultural ecosystem?
Which of the following agricultural practices is most likely to increase the long-term carrying capacity of an agricultural ecosystem?
Food security is solely dependent on food production and not influenced by access, affordability, or utilization.
Food security is solely dependent on food production and not influenced by access, affordability, or utilization.
Critically evaluate the potential trade-offs between using GMOs to increase food production and the potential environmental and ethical considerations.
Critically evaluate the potential trade-offs between using GMOs to increase food production and the potential environmental and ethical considerations.
The use of less pesticide in sustainable agriculture aims to reduce ______ to non-target organisms.
The use of less pesticide in sustainable agriculture aims to reduce ______ to non-target organisms.
Match each concept with its relevance to ensuring food for all.
Match each concept with its relevance to ensuring food for all.
Which of the following is a primary threat to food security?
Which of the following is a primary threat to food security?
All energy in food chains originates directly from producers consuming decomposers.
All energy in food chains originates directly from producers consuming decomposers.
Analyze how human actions directly influence ecosystems through farming and technology, impacting overall biodiversity and sustainable practices.
Analyze how human actions directly influence ecosystems through farming and technology, impacting overall biodiversity and sustainable practices.
Plants use ______ to convert sunlight into food.
Plants use ______ to convert sunlight into food.
Match each method of sustainable agriculture to its function
Match each method of sustainable agriculture to its function
Flashcards
Photosynthesis
Photosynthesis
The process plants use to create food from sunlight, water, and carbon dioxide.
Photosynthesis Equation
Photosynthesis Equation
CO2 + H2O + sunlight → C6H12O6 (glucose) + O2
Cellular Respiration
Cellular Respiration
Process all living things use to release energy from food.
Cellular Respiration Equation
Cellular Respiration Equation
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Producers
Producers
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Consumers
Consumers
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Decomposers
Decomposers
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Carrying Capacity
Carrying Capacity
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Limiting Factors
Limiting Factors
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Sustainable Agriculture
Sustainable Agriculture
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Genetically Modified Organisms (GMOs)
Genetically Modified Organisms (GMOs)
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Food Security
Food Security
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Study Notes
- The unit examines how living organisms acquire energy, how agriculture and biotechnology influence food production, and how science addresses the global challenge of feeding a growing population.
Photosynthesis
- Plants utilize sunlight, water, and carbon dioxide to produce their own food.
- The photosynthesis equation: CO₂ + H₂O + sunlight → C₆H₁₂O₆ (glucose) + O₂
- This process forms the foundation of most food chains and generates oxygen.
Cellular Respiration
- All living organisms employ the process of cellular respiration to extract energy from food.
- Equation for the process: C₆H₁₂O₆ + O₂ → CO₂ + H₂O + energy (ATP)
- Cellular respiration is the opposite of photosynthesis.
Food Chains & Webs
- Producers, such as plants, create their own food.
- Consumers obtain energy by consuming other organisms.
- Decomposers break down dead organic matter, recycling nutrients back into the environment.
Carrying Capacity
- The carrying capacity is the maximum population size that an environment can sustain.
- Limiting factors like food, water, and space constrain population size.
Sustainable Agriculture
- The aim is to produce sufficient food without causing harm to the environment.
- Methods include crop rotation, reduced pesticide usage, and conservation practices.
Biotechnology in Farming
- Genetically Modified Organisms (GMOs) are crops altered to improve growth, pest resistance, or weather resilience.
- GMOs can lead to increased food production and decreased need for chemicals.
- GMOs raise environmental and ethical concerns.
Food Security
- Food security exists when all individuals have consistent access to sufficient, safe, and nutritious food.
- Threats to food security include climate change, poverty, conflict, and population growth.
Big Ideas
- The sun is the primary source of energy for most food chains.
- Plants convert sunlight into food through photosynthesis.
- Human activities like farming and technology affect ecosystems.
- Science and sustainable practices offer solutions to food-related challenges.
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