WorksheetsIntroduction To Energy Review
Total questions: 10
Worksheet time: 5mins
(True or False) Energy processing is one of the characteristics of living organisms.
True
False
Autotrophs, also known as producers, make their own food. Which of the following pairs correctly represents the two types of autotrophs?
Chemoheterotrophs and photoheterotrophs
Lithoautotrophs and geoautotrophs
Lightheterotrophs and permaheterotrophs
Chemoautotrophs and photoautotrophs
Heterotrophs, also known as consumers, obtain their food from other sources. Which of the following is NOT a type of heterotroph?
Herbivore
Carnivore
Plantivore
Decomposer/Detritivore
Which of the following statements best explains how energy flows through an ecosystem, including the roles of producers, consumers, and decomposers?
Energy flows from consumers to producers, and decomposers recycle energy within the ecosystem.
Energy flows from producers to consumers, and decomposers break down waste materials.
Energy flows from decomposers to consumers, and producers generate energy from organic matter.
Energy flows from consumers to decomposers, and producers store energy for future use.
What is the primary source of energy for photoautotrophs?
Inorganic compounds like hydrogen sulfide (H2S)
Organic matter obtained from other organisms
Atmospheric oxygen (O2)
Sunlight
Which type of autotrophs utilize inorganic compounds like hydrogen sulfide (H2S) as an energy source for photosynthesis?
Chemoautotrophs
Photoautotrophs
Chemoheterotrophs
Photoheterotrophs
In an energy pyramid, which trophic level typically contains the most energy, and why?
The primary consumers (herbivores) because they directly consume producers.
The secondary consumers (carnivores) because they are at a higher trophic level.
The producers (autotrophs) because they capture energy from the sun.
The decomposers because they break down organic matter and release energy.
Which of the following is an example of a detritivore, and what is its role in nutrient cycling?
Lion: It feeds on herbivores and contributes to nutrient recycling by consuming animal remains.
Oak tree: It absorbs nutrients from the soil, enriching the ecosystem through its root system.
Earthworm: It consumes dead plant material and organic debris, aiding in the decomposition process.
Hawk: It preys on small mammals and helps maintain ecosystem balance.
What is the main function of decomposers in an ecosystem?
To capture sunlight and convert it into chemical energy for other organisms.
To control the population of herbivores and carnivores.
To serve as the primary producers in aquatic ecosystems.
To break down dead organic matter and recycle nutrients back into the environment.
How does the process of chemosynthesis differ from photosynthesis, and where is it commonly found in nature?
Chemosynthesis uses inorganic compounds as an energy source, while photosynthesis uses sunlight; it is commonly found in deep-sea hydrothermal vent communities.
Chemosynthesis uses sunlight as an energy source, while photosynthesis uses inorganic compounds; it is commonly found in plant leaves.
Chemosynthesis uses organic matter as an energy source, while photosynthesis uses sunlight; it is commonly found in tropical rainforests.
Chemosynthesis and photosynthesis are the same process, occurring in all ecosystems.
