Autotroph and Heterotroph quiz

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Autotroph And Heterotroph Quiz - 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.


Questions and Answers
  • 1. 

    What is a herbivore?

    • A.

      An animal that gets energy from eating other animals.

    • B.

      An organism that gets energy from eating only plants.

    • C.

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

    • D.

      None of the above

    Correct Answer
    B. 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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  • 2. 

    What is an autotroph?

    • A.

      An organism that cannot make its own food.

    • B.

      Herbivore

    • C.

      An organism that can make its own food. 

    • D.

      Omnivore

    Correct Answer
    C. 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. 

    What is a carnivore?

    • A.

      An animal that gets energy by eating other animals

    • B.

      An animal that gets energy by eating only plants

    • C.

      An animal that gets energy by eating both plants and animals

    • D.

      None of the above

    Correct Answer
    A. An animal that gets energy by eating other animals
    Explanation
    A carnivore is an animal that gets its energy by consuming other animals. This means that carnivores primarily feed on the flesh of other animals as their main source of nutrition. They have adapted to have sharp teeth and strong jaws to help them catch and kill their prey. Examples of carnivores include lions, tigers, and wolves.

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  • 4. 

    What is Chlorophyll?

    • A.

      A green pigment is responsible for the absorption of light to provide energy for photosynthesis.

    • B.

      A type of reproduction.

    • C.

      A stage of mitosis.

    • D.

      An organism that must reproduce asexually.

    Correct Answer
    A. A green pigment is responsible for the absorption of light to provide energy for photosynthesis.
    Explanation
    Chlorophyll is a green pigment found in plants and algae that is responsible for absorbing light energy from the sun. This absorbed energy is then used in the process of photosynthesis to convert carbon dioxide and water into glucose and oxygen. Chlorophyll is essential for plants to produce their own food and is what gives them their green color.

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  • 5. 

    Which of the following formulas represents photosynthesis?

    • A.

      6 H2O + 6 O2 = C6H12O6 + 6 CO2

    • B.

      6 H2O + 6 CO2 = C6H12O6 + 6 O2

    • C.

      C6H12O6 + + 6 O2 = 6 H2O + 6 CO2

    • D.

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

    Correct Answer
    B. 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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  • 6. 

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

    • A.

      Thylakoids

    • B.

      Plants

    • C.

      Autotrophs

    • D.

      Heterotrophs

    Correct Answer
    D. 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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  • 7. 

    Which of the following is NOT a consumer?

    • A.

      Fish

    • B.

      Grass

    • C.

      Dog

    • D.

      Shark

    Correct Answer
    B. 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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  • 8. 

    Which term is synonymous with the producer?

    • A.

      Heterotroph

    • B.

      Consumer

    • C.

      Decomposer

    • D.

      Autotroph

    Correct Answer
    D. 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. 

    Which term is synonymous with the consumer?

    • A.

      Heterotroph

    • B.

      Decomposer

    • C.

      Consumer

    • D.

      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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  • 10. 

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

    • A.

      Decomposer

    • B.

      Producer

    • C.

      Consumer

    • D.

      Herbivore

    Correct Answer
    C. 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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