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Science Review 5th

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  • What are two types of factors in ecosystems?
    Biotic and abiotic factors.
  • What is the role of mitochondria in animal cells?
    They perform cellular respiration.
  • What are nutrients? Give examples of three types of nutrients.
    Carbohydrates, proteins, vitamins, fiber, fats.
  • How many planets are there in the solar system?
    Eight planets.
  • What is photosynthesis?
    It’s a process where plants combine elements from the environment to make their own food.
  • What gas is absorbed during photosynthesis?
    Carbon Dioxide (CO2).
  • What is a food chain?
    A representation of how energy moves in an ecosystem.
  • What is an ecosystem?
    It’s a place that combines living and nonliving things.
  • Can matter or energy be created or destroyed?
    No, it can only be transformed.
  • What is a solar system?
    A collection of celestial objects orbiting a star.
  • What are examples of populations?
    Examples of the same species interacting. Example: 5 giraffes in the savannah.
  • What is cellular respiration?
    A process that occurs in animals where energy cells are created.
  • What are examples of communities?
    Different species interacting. Example: Penguins and seals in the arctic.
  • List biotic and abiotic factors in an ecosystem.
    Biotic: plants, bacteria, animals, fungi. Abiotic: virus, rocks, water, sun, temperature, air.
  • What is the name of the sugar produced in photosynthesis?
    Glucose
  • What is a planet?
    A celestial body moving in an orbit.
  • What is the role of chloroplasts in plant cells?
    They perform photosynthesis.
  • What gas is produced during photosynthesis?
    Oxygen (O2).
  • What is a galaxy?
    A system of millions or billions of stars in their system held together by gravity.
  • What are the levels of organizations in ecosystems?
    Individual → Population → Community
  • What is a star?
    It’s a luminous celestial body of gas.
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