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Questions and Answers
What is the primary source of energy for all life on Earth?
What is the primary source of energy for all life on Earth?
- Solar energy from the sun (correct)
- Chemical energy from deep-sea vents
- Nuclear energy from the Earth's core
- Geothermal energy from volcanic activity
Which term refers to the process by which nutrients are replenished in an ecosystem?
Which term refers to the process by which nutrients are replenished in an ecosystem?
- Biomagnification
- Biodiversity maintenance
- Ecosystem balance
- Nutrient cycling (correct)
Which factor is associated with the enzyme activity in the digestive system?
Which factor is associated with the enzyme activity in the digestive system?
- Type of food consumed
- Temperature and pH levels (correct)
- Presence of hormones in the bloodstream
- Duration of digestion
What is the main effect of deforestation on ecosystems?
What is the main effect of deforestation on ecosystems?
Which of the following processes is NOT involved in cellular respiration?
Which of the following processes is NOT involved in cellular respiration?
Flashcards
Photosynthesis
Photosynthesis
The process by which producers convert light energy into chemical energy (glucose) using carbon dioxide and water, releasing oxygen as a byproduct.
Cellular Respiration
Cellular Respiration
The process by which organisms break down glucose to release energy, using oxygen and producing carbon dioxide and water as byproducts.
Eutrophication
Eutrophication
The gradual increase in the concentration of nutrients, especially nitrogen and phosphorus, in a body of water, often leading to excessive algal growth and oxygen depletion.
Chemosynthesis
Chemosynthesis
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10% Rule
10% Rule
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Study Notes
Unit A: Energy and Matter Exchange in the Biosphere
- Energy source: Earth's energy originates from the sun
- Biosphere organization: Species, populations, communities, and ecosystems
- Energy pyramids: 10% of energy transfers between trophic levels
- Laws of Thermodynamics: govern energy flow
- Food chains/webs: illustrate energy transfer in ecosystems
- Nutrient cycles: Hydrological, carbon, nitrogen, and phosphorus
- Photosynthesis and chemosynthesis: Essential processes for energy production
Unit B: Ecosystems and Population Change
- Eutrophication: Nutrient enrichment of water bodies
- Deforestation and forest fires: Major ecosystem disturbances
- Biomes: Various ecosystems categorized by climate and organisms
- Taxonomy: Scientific naming and classification of organisms
- Evolution: Natural selection impacting adaptation and speciation
- Mutations: Changes in genetic material
- Gradualism and punctuated equilibrium: Evolutionary rate patterns
- Allopatric speciation: Speciation caused by geographical isolation
- Evidence for evolution: Scientific data supporting biological evolution
Unit C: Photosynthesis and Cellular Respiration
- Photosynthesis and Cellular respiration: Both processes taking place inside and outside the cell.
- ATP (Adenosine Triphosphate): Key energy currency in cellular processes
Unit D: Human Systems
- Digestive system enzymes: Function and location
- Factors affecting digestive enzyme activity
- Inhalation and exhalation: Breathing process
- Respiratory disorders: Diseases related to respiration
- Blood oxygenation/deoxygenation: Processes in the circulatory system
- Sliding filament theory: Mechanism of muscle contraction
- Blood vessel types and blood cells
- Thermoregulation: Maintenance of body temperature
- Blood flow/transfusions: Blood circulation and blood replacement
- Immune response: Body defense system
- Lymphatic system: Functions
- Excretory system: Organ structure and urine production
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