Cards (74)

    • Consumers play a key role in secondary productivity by converting ingested organic matter into new biomass.
    • Steps of secondary productivity in consumers
      1️⃣ Feeding
      2️⃣ Digestion
      3️⃣ Assimilation
      4️⃣ Excretion
      5️⃣ Respiration
    • What does the formula GPP=GPP =TotalCO2FixedbyPhotosynthesis Total CO₂ Fixed by Photosynthesis represent?

      Gross Primary Productivity
    • Productivity in ecology measures the rate at which energy is converted into organic matter.
    • Match the productivity type with its description:
      GPP ↔️ Total energy captured by photosynthesis
      NPP ↔️ Energy stored after respiration
    • Why does a rainforest have a high GPP but a lower NPP?
      Energy used for respiration
    • Gross Primary Productivity (GPP) is the total amount of energy captured by plants
    • Net Primary Productivity (NPP) is calculated by subtracting respiration losses from GPP.
    • What are the key processes involved in secondary productivity?
      Feeding, digestion, assimilation
    • In the primary productivity process, plants convert sunlight into organic matter and oxygen
    • Secondary productivity results in biomass gain by consumers.
    • What are the two main types of productivity in ecosystems?
      Primary and secondary
    • Primary productivity uses sunlight as its main energy source
    • Photosynthesis is the key process in primary productivity.
    • What are the outputs of primary productivity?
      Organic matter, oxygen
    • Gross primary productivity (GPP) is the total amount of energy captured by plants
    • Productivity in ecology refers to the rate at which energy is converted into organic matter
    • What does Gross Primary Productivity (GPP) measure?
      Energy captured by photosynthesis
    • Net Primary Productivity (NPP) accounts for respiration losses.
    • NPP is calculated by subtracting plant respiration from GPP.
    • Why might a rainforest have a high GPP but a lower NPP?
      Plants use energy for respiration
    • Understanding productivity helps in assessing ecosystem health.
    • Secondary productivity measures the rate at which consumers convert organic matter into their own biomass
    • Match the productivity type with its key process:
      Primary ↔️ Photosynthesis
      Secondary ↔️ Digestion
    • How does light intensity affect primary productivity?
      Increases GPP until saturation
    • Optimal temperature for photosynthesis is the same for all plant species.
      False
    • Nitrogen and phosphorus are examples of nutrients crucial for primary productivity
    • Arrange the factors affecting primary productivity based on their importance for photosynthesis.
      1️⃣ Light intensity
      2️⃣ Water availability
      3️⃣ Nutrient availability
      4️⃣ Temperature
    • Drought conditions reduce primary productivity.
    • Increased light intensity enhances primary productivity until it reaches saturation
    • Drought conditions can significantly reduce primary productivity.
    • Nitrogen and phosphorus are examples of nutrients vital for plant growth
    • Arrange the factors affecting primary productivity from most positive to most negative impact.
      1️⃣ Optimal temperature
      2️⃣ Sufficient water availability
      3️⃣ Increased light intensity
      4️⃣ Drought conditions
      5️⃣ Nutrient deficiency
    • Drought reduces Gross Primary Productivity (GPP).
    • Nutrient deficiency limits Gross Primary Productivity (GPP) if deficient
    • In a rainforest, nutrient availability can limit GPP due to rapid nutrient cycling.
    • Gross Primary Productivity (GPP) measures the total amount of energy captured by plants through photosynthesis
    • What is the formula for Net Primary Productivity (NPP)?
      NPP=NPP =GPPRespiration GPP - Respiration
    • A rainforest has a high GPP but a lower NPP due to energy loss from respiration.
    • Secondary productivity measures the rate at which consumers convert organic matter into their own biomass
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