Life Science Interesting Questions! Trivia Quiz

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Life Science Quizzes & Trivia

What we have here are some life science interesting questions! The questions are designed to not only test out what you know about living organisms but how they survive in their environments, their genetic makeup and organs too. If you think you have a good understanding of the all you need to do is take up the quiz. Do give it a shot and see how well you will do. All the best as you tackle it!


Questions and Answers
  • 1. 

    Which scientist first "thought" there were only two classifications for all organisms, which were only plants and animals?

    • A.

      Plato

    • B.

      Aristole

    • C.

      Mendel

    • D.

      Robert Hooke

    Correct Answer
    B. Aristole
    Explanation
    Aristotle is the correct answer because he was the first scientist to propose the idea of a two-fold classification system for organisms, dividing them into plants and animals. His work laid the foundation for the field of taxonomy and his classification system was widely accepted for centuries until more complex classifications were developed.

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  • 2. 

    Who was known as the "Father of Genetics" and experimented with the pea plants?

    • A.

      Dalton

    • B.

      Robert Hooke

    • C.

      Mendel

    • D.

      Carolus Linnaeus

    Correct Answer
    C. Mendel
    Explanation
    Mendel is known as the "Father of Genetics" because he conducted groundbreaking experiments with pea plants that laid the foundation for the modern understanding of inheritance. Through his experiments, Mendel discovered the principles of dominant and recessive traits, as well as the concept of genetic inheritance. His work paved the way for the field of genetics and revolutionized our understanding of how traits are passed from one generation to the next.

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  • 3. 

    Who discovered the "cell theory" when he experimented with cork?

    • A.

      Robert Hooke

    • B.

      Mendel

    • C.

      Bohr

    • D.

      Galileo

    Correct Answer
    A. Robert Hooke
    Explanation
    Robert Hooke discovered the "cell theory" when he experimented with cork. He observed tiny compartments in the cork under a microscope and named them "cells" because they reminded him of the cells in a monastery. This discovery led to the development of the cell theory, which states that all living organisms are composed of cells, and cells are the basic units of life. Mendel, Bohr, and Galileo are not associated with the discovery of the cell theory.

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  • 4. 

    Who invented the microscope which was very simple with only one lense period during that time period?

    • A.

      Mendeleev

    • B.

      Archimedes

    • C.

      Rutherford

    • D.

      Leevwenhook

    Correct Answer
    D. Leevwenhook
    Explanation
    Leevwenhook is the correct answer because he was the inventor of the microscope during that time period. He is known for his simple microscopes with a single lens, which allowed for the observation of small organisms and cells. Mendeleev is known for his work on the periodic table, Archimedes was an ancient Greek mathematician and physicist, and Rutherford was a physicist known for his work on atomic structure.

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  • 5. 

    Which cycle produce about 78% nitrogen in the atmosphere to help build proteins and other chemicals for living organisms by plants taking nitrogen compounds from the soil to make their own compounds?

    • A.

      Water cycle

    • B.

      Oxygen and carbon cycle

    • C.

      Life cycle

    • D.

      Nitrogen cycle

    Correct Answer
    D. Nitrogen cycle
    Explanation
    The nitrogen cycle is the correct answer because it is the process by which nitrogen is converted into various forms that can be used by living organisms. During this cycle, nitrogen is taken from the atmosphere and converted into nitrogen compounds by bacteria in the soil. Plants then absorb these compounds from the soil and use them to build proteins and other chemicals necessary for their growth. This cycle is essential for the availability of nitrogen, which is a crucial element for the formation of proteins and other organic molecules in living organisms.

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  • 6. 

    Which cycle states that three-fouths of the Earth's is covered by water and water circulates between the atmosphere and land?

    • A.

      Water cycle

    • B.

      Nitrogen cycle

    • C.

      Carbon and oxygen cycle

    • D.

      Recycle

    Correct Answer
    A. Water cycle
    Explanation
    The water cycle states that three-fourths of the Earth's surface is covered by water and water circulates between the atmosphere and land. This cycle involves processes such as evaporation, condensation, precipitation, and runoff, which continuously move water from the Earth's surface to the atmosphere and back again. Through the water cycle, water is constantly being recycled and redistributed, ensuring the availability of freshwater for various ecosystems and human use.

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  • 7. 

    What is the process when water loses water through its leaves?

    • A.

      Respiration

    • B.

      Transpiration

    • C.

      Perspiration

    • D.

      Condensation

    Correct Answer
    B. Transpiration
    Explanation
    Transpiration is the process by which water is lost from the leaves of plants. It involves the movement of water through the plant's tissues and its subsequent evaporation from the surface of the leaves. This process is essential for the plant's survival as it helps in the absorption of nutrients from the soil and the regulation of temperature. Respiration is the process of converting nutrients into energy, perspiration refers to the release of sweat by mammals, and condensation is the process of water vapor turning into liquid.

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  • 8. 

    What is the process of water passing in and out of a cell? 

    • A.

      Osmosis

    • B.

      Ion

    • C.

      Respiration

    • D.

      Transpiration

    Correct Answer
    A. Osmosis
    Explanation
    Osmosis is the process of water passing in and out of a cell. It involves the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. This process is crucial for maintaining the water balance and regulating the concentration of solutes inside and outside the cell.

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  • 9. 

    What is the process of a living orgainism taking in oxygen in its lungs?

    • A.

      Perspiration

    • B.

      Transpiration

    • C.

      Respiration

    • D.

      Translation

    Correct Answer
    C. Respiration
    Explanation
    Respiration is the correct answer because it is the process by which a living organism takes in oxygen in its lungs. During respiration, oxygen is inhaled and transported to the lungs where it is exchanged with carbon dioxide. This exchange occurs in the alveoli, tiny air sacs in the lungs, where oxygen is absorbed into the bloodstream and carbon dioxide is released. Respiration is essential for the survival of organisms as it provides the necessary oxygen for cellular respiration, which produces energy for the body's functions. Perspiration is the process of sweating, transpiration is the release of water vapor from plants, and translation is a process in genetics.

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  • 10. 

    What is a material that has once been living and contains carbon?

    • A.

      Inorganic material

    • B.

      Organic material

    • C.

      Dead material

    • D.

      Living material

    Correct Answer
    B. Organic material
    Explanation
    Organic material refers to a substance that was once alive or derived from living organisms and contains carbon. This can include plants, animals, and their byproducts. Organic materials are composed of carbon-based compounds and are essential for supporting life processes. In contrast, inorganic materials do not contain carbon and are typically derived from non-living sources such as minerals or synthetic substances. Dead material refers to organic matter that is no longer alive, while living material refers to organisms that are currently alive.

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  • 11. 

    What is the light in an organism as a firefly?

    • A.

      DC

    • B.

      AC

    • C.

      Bioluminous

    • D.

      Fire

    Correct Answer
    C. Bioluminous
    Explanation
    Bioluminescence refers to the ability of an organism to produce and emit light. Fireflies are known for their bioluminescence, as they are able to generate light through a chemical reaction in their bodies. This light is used for various purposes, such as attracting mates or deterring predators. Therefore, the term "bioluminous" accurately describes the light produced by a firefly.

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  • 12. 

    What type of organisms cannot make their own food?

    • A.

      Autotrophs

    • B.

      Producers

    • C.

      Decomposer

    • D.

      Heterotrophs

    Correct Answer
    D. Heterotrophs
    Explanation
    Heterotrophs are organisms that cannot make their own food. They rely on consuming other organisms or organic matter for energy and nutrients. Autotrophs, on the other hand, are able to produce their own food through photosynthesis or chemosynthesis. Producers are also autotrophs that convert energy from the sun or chemicals into food. Decomposers, while not able to produce their own food, obtain nutrients by breaking down dead organic matter. Therefore, the correct answer is heterotrophs.

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  • 13. 

    What type of cell has no membrane around the nucleus (bacteria, moss)?

    • A.

      Eukaryotic cell

    • B.

      Prokaryotic cell

    • C.

      All cellls

    Correct Answer
    B. Prokaryotic cell
    Explanation
    A prokaryotic cell is the correct answer because it is a type of cell that lacks a membrane-bound nucleus. In prokaryotic cells, the genetic material is not enclosed within a membrane, but instead floats freely in the cytoplasm. This is in contrast to eukaryotic cells, which have a membrane-bound nucleus where the DNA is housed. Bacteria are examples of prokaryotic cells, while moss is an example of a eukaryotic cell. Therefore, the correct answer is prokaryotic cell.

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  • 14. 

    What organelle supports and protects plants?  Animal cells do not have it.

    • A.

      Cell memebrane

    • B.

      Cell wall

    • C.

      Chloroplast

    • D.

      Nucleus

    Correct Answer
    B. Cell wall
    Explanation
    The cell wall is a rigid structure that provides support and protection to plant cells. It is made up of cellulose and other materials, and it surrounds the cell membrane. The cell wall helps maintain the shape of the cell and prevents it from bursting under pressure. It also provides protection against external factors such as pathogens and physical damage. Animal cells do not have a cell wall, which is why it is specifically mentioned in the question.

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  • 15. 

    What type of organisms make their own food (example: plants)?

    • A.

      Autotrophs

    • B.

      Heterotrophs

    • C.

      Consumers

    • D.

      Mammals

    Correct Answer
    A. Autotrophs
    Explanation
    Autotrophs are organisms that are capable of producing their own food through the process of photosynthesis or chemosynthesis. They are able to convert sunlight or inorganic compounds into organic molecules, such as glucose, which serves as their source of energy. Plants are a classic example of autotrophs, as they use sunlight, carbon dioxide, and water to produce glucose through photosynthesis. Autotrophs play a crucial role in the food chain as they are the primary producers, providing energy for other organisms in the ecosystem.

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  • 16. 

    Which organelle (part) of the cell allows substances to go in and out of the plant cell and animal cell?

    • A.

      Cell wall

    • B.

      Cell membrane

    • C.

      Sepals

    • D.

      Leaves

    Correct Answer
    B. Cell membrane
    Explanation
    The cell membrane is responsible for controlling the movement of substances in and out of both plant and animal cells. It acts as a barrier, allowing only certain molecules to pass through via active or passive transport processes. The cell membrane is made up of a phospholipid bilayer with embedded proteins that help facilitate the transport of ions and molecules across the membrane. Therefore, the cell membrane is the correct answer as it allows substances to enter and exit the cell.

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  • 17. 

    Which type of cell has a cell wall?

    • A.

      Animal cell

    • B.

      Heterotrophs

    • C.

      Cosumers

    • D.

      Plant cell

    Correct Answer
    D. Plant cell
    Explanation
    Plant cells have a cell wall. The cell wall is a rigid structure that surrounds the cell membrane, providing support and protection to the cell. It is composed mainly of cellulose, a complex carbohydrate. Unlike animal cells, plant cells have this additional layer outside the cell membrane, which gives them a more defined shape and allows them to withstand the pressure from the internal contents. This characteristic is unique to plant cells and is not found in animal cells or other types of cells.

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  • 18. 

    What is used for genetic coding?

    • A.

      RNA

    • B.

      Ribonucleic acid

    • C.

      DNA

    • D.

      Nucleus

    Correct Answer
    C. DNA
    Explanation
    DNA is used for genetic coding. DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms. It contains the genetic information that determines the traits and characteristics of an organism. RNA, or ribonucleic acid, is also involved in genetic coding, but it is primarily responsible for translating the genetic information stored in DNA into proteins. The nucleus is a cellular organelle that houses the DNA, but it is not directly involved in genetic coding itself.

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  • 19. 

    What is used to read the genetic coding?

    • A.

      DNA

    • B.

      RNA

    • C.

      SONAR

    • D.

      NASA

    Correct Answer
    B. RNA
    Explanation
    RNA is used to read the genetic coding. RNA, or ribonucleic acid, plays a crucial role in the process of gene expression. It acts as a messenger between DNA and proteins, carrying the genetic information from the DNA to the protein-making machinery in the cell. This process, known as transcription, involves the synthesis of RNA molecules that are complementary to specific regions of the DNA. These RNA molecules then serve as templates for protein synthesis. Therefore, RNA is an essential component in the decoding and translation of the genetic code.

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  • 20. 

    What is the chain that always begins with a producers and shows one string of animals?

    • A.

      Food chain

    • B.

      Food web

    • C.

      Energy pyramid

    • D.

      Water cycle

    Correct Answer
    A. Food chain
    Explanation
    A food chain is a sequence of organisms in which each organism is the food source for the next organism in the chain. It always begins with a producer, such as plants, and shows the flow of energy from one organism to another. This chain represents the transfer of food energy from plants to herbivores, then to carnivores, and finally to decomposers. A food web, on the other hand, is a more complex network of interconnected food chains. An energy pyramid represents the flow of energy through different trophic levels in an ecosystem. The water cycle, on the other hand, is the continuous movement of water on, above, and below the surface of the Earth.

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  • 21. 

    What is the animal that is being hunted?

    • A.

      Predator

    • B.

      Host

    • C.

      Prey

    • D.

      Decomposer

    Correct Answer
    C. Prey
    Explanation
    The correct answer is prey. Prey refers to the animal that is being hunted or consumed by another animal, known as the predator. In a predator-prey relationship, the predator hunts and feeds on the prey as a means of survival. The prey is the target of the predator's hunting efforts and is typically smaller or weaker in comparison. This relationship is crucial for maintaining the balance of ecosystems and the overall food chain.

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  • 22. 

    Which type of graph shows the energy levels from greatest to least? 

    • A.

      Food web

    • B.

      Energy pyramid

    • C.

      Food chain

    • D.

      Energy chain

    Correct Answer
    B. Energy pyramid
    Explanation
    An energy pyramid is a type of graph that shows the energy levels from greatest to least. In an ecosystem, energy flows through different trophic levels, with each level containing organisms that occupy a specific position in the food chain. The energy pyramid represents this flow of energy, with the producers (such as plants) at the bottom, followed by primary consumers (herbivores), secondary consumers (carnivores), and so on. As we move up the pyramid, the energy available decreases because energy is lost as heat at each trophic level. Therefore, the energy pyramid displays the energy levels in a hierarchical manner, from the highest amount of energy at the bottom to the lowest amount at the top.

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  • 23. 

    What are animals called that eat producers?

    • A.

      Consumers

    • B.

      Producers

    • C.

      Autotrophs

    • D.

      Plants

    Correct Answer
    A. Consumers
    Explanation
    Consumers are animals that eat producers, which are organisms that produce their own food through photosynthesis or chemosynthesis. Consumers obtain energy by consuming other organisms, such as plants or other animals. They are an important part of the food chain or food web, as they transfer energy and nutrients from lower trophic levels to higher trophic levels. Producers, on the other hand, are organisms that produce their own food and are typically plants or other autotrophs. Autotrophs are organisms that can produce their own food using energy from the sun or inorganic substances.

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  • 24. 

    What is first on all food chains and make their own food?

    • A.

      Consumers

    • B.

      Heterotrophs

    • C.

      Producers

    • D.

      Animals

    Correct Answer
    C. Producers
    Explanation
    Producers are the first on all food chains and make their own food through the process of photosynthesis. They are able to convert sunlight, water, and carbon dioxide into energy-rich organic compounds, such as glucose. These producers, mainly plants and some types of bacteria, form the base of the food chain by providing food and energy for other organisms.

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  • 25. 

    What breaks down materials, examples mushroom, fungi?

    • A.

      Producers

    • B.

      Consumers

    • C.

      Decomposer

    • D.

      Biome

    Correct Answer
    C. Decomposer
    Explanation
    Decomposers, such as mushrooms and fungi, break down organic materials into simpler forms, aiding in the process of decomposition. These organisms play a crucial role in ecosystems by breaking down dead plants and animals, releasing nutrients back into the environment. Unlike producers, which convert sunlight into energy, and consumers, which feed on other organisms, decomposers primarily focus on breaking down dead organic matter. Therefore, decomposer is the correct answer in this context.

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  • Mar 20, 2023
    Quiz Edited by
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  • Apr 26, 2011
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