Autotroph and Heterotroph quiz

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  • 1/10 Questions

    What is Chlorophyll?

    • A green pigment is responsible for the absorption of light to provide energy for photosynthesis.
    • A type of reproduction.
    • A stage of mitosis.
    • An organism that must reproduce asexually.
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About This Quiz

Do you know the difference between autotrophs and heterotrophs? Take this autotroph and heterotroph quiz to see how much you know. This quiz is a combination of questions about autotrophs and heterotrophs. If you have studied it well, it is going to be an easy quiz for you. You must give this quiz a try to prove your knowledge. All the best! You can share this quiz with others, too, and challenge them on scores.

Autotroph And Heterotroph Quiz - Quiz

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  • 2. 

    What is an autotroph?

    • An organism that cannot make its own food.

    • Herbivore

    • An organism that can make its own food. 

    • Omnivore

    Correct Answer
    A. An organism that can make its own food. 
    Explanation
    An autotroph is an organism that can make its own food. Autotrophs are capable of synthesizing organic compounds from inorganic substances, such as carbon dioxide and water, through processes like photosynthesis or chemosynthesis. They do not rely on consuming other organisms for nutrition, unlike heterotrophs. Autotrophs play a crucial role in ecosystems as they are the primary producers, converting energy from the sun or other sources into usable forms for other organisms.

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  • 3. 

    Which of the following is NOT a consumer?

    • Fish

    • Grass

    • Dog

    • Shark

    Correct Answer
    A. Grass
    Explanation
    Grass is not a consumer because it is a producer. It undergoes photosynthesis to produce its own food using sunlight, water, and carbon dioxide. Consumers, on the other hand, obtain their energy by consuming other organisms. Fish, dog, and shark are all examples of consumers as they feed on other organisms for their energy and nutrients.

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  • 4. 

    What is a herbivore?

    • An animal that gets energy from eating other animals.

    • An organism that gets energy from eating only plants.

    • An animal that gets energy by eating both plants and other animals.

    • None of the above

    Correct Answer
    A. An organism that gets energy from eating only plants.
    Explanation
    A herbivore is an organism that obtains energy by consuming only plants. Unlike carnivores, which eat other animals, and omnivores, which consume both plants and animals, herbivores rely solely on plant-based food sources for their energy needs. This dietary preference is reflected in their specialized digestive systems, which are adapted to process and extract nutrients from plant matter. By consuming plants, herbivores play a crucial role in the ecosystem by regulating plant populations and contributing to nutrient cycling.

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  • 5. 

    Organisms that cannot make their own food and necessarily obtain energy from external sources are called.

    • Thylakoids

    • Plants

    • Autotrophs

    • Heterotrophs

    Correct Answer
    A. Heterotrophs
    Explanation
    Heterotrophs are organisms that cannot produce their own food and must obtain energy from external sources. Unlike autotrophs, which can synthesize their own food through processes like photosynthesis, heterotrophs rely on consuming organic matter produced by other organisms. This can include plants, animals, or decomposing organic material. Thylakoids, on the other hand, are membrane structures found in chloroplasts and are involved in the light-dependent reactions of photosynthesis. Therefore, the correct answer is heterotrophs.

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  • 6. 

    Which of the following statements accurately distinguishes between autotrophs and heterotrophs?

    • Autotrophs consume organic matter for energy, while heterotrophs produce their own food. 

    • Autotrophs obtain carbon from inorganic sources, while heterotrophs obtain carbon from organic sources. 

    • Autotrophs are typically primary consumers, while heterotrophs are primary producers. 

    • Autotrophs lack chloroplasts, while heterotrophs possess chloroplasts.  

    Correct Answer
    A. Autotrophs obtain carbon from inorganic sources, while heterotrophs obtain carbon from organic sources. 
    Explanation
    Autotrophs, like plants and algae, are self-feeders. They use photosynthesis to convert inorganic carbon dioxide and water into organic compounds, using sunlight as an energy source. Heterotrophs, including animals and fungi, cannot produce their own food and must obtain carbon from organic sources by consuming other organisms or their byproducts. 

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  • 7. 

    Which term is synonymous with the consumer?

    • Heterotroph

    • Decomposer

    • Consumer

    • Autotroph

    Correct Answer
    A. Heterotroph
    Explanation
    A heterotroph is an organism that obtains its energy by consuming other organisms. In the context of the question, the term "consumer" refers to an organism that consumes other organisms for energy. Therefore, "consumer" and "heterotroph" are synonymous terms.

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  • 8. 

    Which term is synonymous with the producer?

    • Heterotroph

    • Consumer

    • Decomposer

    • Autotroph

    Correct Answer
    A. Autotroph
    Explanation
    An autotroph is an organism that can produce its own food through processes like photosynthesis or chemosynthesis. This term is synonymous with the producer because producers are able to convert sunlight or inorganic compounds into organic compounds, which serve as a source of energy for other organisms in the ecosystem. Autotrophs are at the base of the food chain and provide energy for heterotrophs (consumers) and decomposers.

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  • 9. 

    An organism that gets energy from eating other organisms is a ______________

    • Decomposer

    • Producer

    • Consumer

    • Herbivore

    Correct Answer
    A. Consumer
    Explanation
    An organism that gets energy from eating other organisms is called a consumer. Consumers obtain energy by consuming other organisms, either by eating plants (herbivores) or by eating other animals (carnivores or omnivores). They are an important part of the food chain, as they help transfer energy from one organism to another. Consumers play a crucial role in maintaining the balance of ecosystems by regulating population sizes and controlling the flow of energy and nutrients.

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  • 10. 

    Which of the following formulas represents photosynthesis?

    • 6 H2O + 6 O2 = C6H12O6 + 6 CO2

    • 6 H2O + 6 CO2 = C6H12O6 + 6 O2

    • C6H12O6 + + 6 O2 = 6 H2O + 6 CO2

    • 6C6H12O6 + + 6 O2 = 6 H2O + 6 CO2

    Correct Answer
    A. 6 H2O + 6 CO2 = C6H12O6 + 6 O2
    Explanation
    The correct answer is 6 H2O + 6 CO2 = C6H12O6 + 6 O2. This formula represents photosynthesis, which is the process by which plants convert carbon dioxide and water into glucose (C6H12O6) and oxygen (O2) using sunlight as an energy source.

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  • Current Version
  • Oct 15, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 25, 2022
    Quiz Created by
    Sophia Smith
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