Energy Flow through living organisms
Quiz by Heba Ibrahim
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10 questions
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- Q1What process do plants use to convert chemical energy into thermal energy?Cellular respirationFermentationPhotosynthesisDecomposition30s
- Q2What is the last trophic level in a food chain?DecomposersSecondary consumersPrimary consumersAutotrophs (plants)30s
- Q3What is the main role of decomposers in an ecosystem?Producing oxygenPreying on other organismsRecycling chemical energy back into the soilConversion of light energy into chemical30s
- Q4If a plant receives 1000 joules of solar energy and uses only 2% for photosynthesis, how much energy is lost?980 joules20 joules200 joules1000 Joules30s
- Q5How might the removal of a trophic level (e.g., predators) affect an ecosystem?Increase the efficiency of energy transferIncrease the number of decomposersMinimize energy lossEcological imbalance30s
- Q6If energy is neither created nor destroyed, but converted from form to another, what other forms can lost energy be converted to in the food chain?Chemical energyAll of the aboveThermal energyKinetic energy30s
- Q7What challenges might organisms face at the end of the food chain due to loss of energy?Increased energy availabilityIncrease the number of decomposers organismsLack of foodImproving the efficiency of energy transfer30s
- Q8Which compound is the source of carbon in photosynthesis?GlucoseCarbon dioxideWaterAdenosine triphosphate (ATP)30s
- Q9Which of the following is directly involved in cellular respiration?RibosomesChloroplastsNucleiMitochondria30s
- Q10The amount of available energy decreases as it moves from one trophic level to a higher one because......?Excessive consumption of energy by organismsEnergy storage in animal tissuesEnergy is lost as heat during metabolismEnergy is transferred to space30s