Biology Quiz
27 Questions
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Biology Quiz

Created by
@BeneficentValley

Questions and Answers

What is the ultimate source of energy for all living organisms?

  • Photosynthesis (correct)
  • Proteins
  • Fats
  • Vitamins
  • What is autotrophic nutrition?

  • When organisms take in nutrients in solution form from dead and decaying matter
  • When organisms make their own food from simple substances (correct)
  • When organisms depend on other organisms for food
  • When organisms obtain nutrition from a living host
  • What is chlorophyll's role in photosynthesis?

  • It provides energy for the reaction
  • It is used to build carbohydrates
  • It is the source of electrons
  • It absorbs sunlight and converts it into chemical energy (correct)
  • What is saprotrophic nutrition?

    <p>When organisms take in nutrients in solution form from dead and decaying matter</p> Signup and view all the answers

    What is nitrogen fixation?

    <p>The process of converting gaseous nitrogen into a usable form for plants</p> Signup and view all the answers

    What is the role of leaves in plants?

    <p>To synthesize food through photosynthesis</p> Signup and view all the answers

    What is holozoic nutrition?

    <p>When organisms ingest solid food and digest it internally</p> Signup and view all the answers

    What is the role of rhizobium in leguminous plants?

    <p>To provide usable nitrogen in exchange for food and shelter</p> Signup and view all the answers

    What is the role of mycorrhizae in plants?

    <p>To help plants absorb nutrients from the soil</p> Signup and view all the answers

    What is the ultimate source of energy for all living organisms?

    <p>Photosynthesis</p> Signup and view all the answers

    What is autotrophic nutrition?

    <p>When organisms make their own food from simple substances</p> Signup and view all the answers

    What is chlorophyll's role in photosynthesis?

    <p>It absorbs sunlight and converts it into chemical energy</p> Signup and view all the answers

    What is saprotrophic nutrition?

    <p>When organisms take in nutrients in solution form from dead and decaying matter</p> Signup and view all the answers

    What is nitrogen fixation?

    <p>The process of converting gaseous nitrogen into a usable form for plants</p> Signup and view all the answers

    What is the role of leaves in plants?

    <p>To synthesize food through photosynthesis</p> Signup and view all the answers

    What is holozoic nutrition?

    <p>When organisms ingest solid food and digest it internally</p> Signup and view all the answers

    What is the role of rhizobium in leguminous plants?

    <p>To provide usable nitrogen in exchange for food and shelter</p> Signup and view all the answers

    What is the role of mycorrhizae in plants?

    <p>To help plants absorb nutrients from the soil</p> Signup and view all the answers

    What is the ultimate source of energy for all living organisms?

    <p>Photosynthesis</p> Signup and view all the answers

    What is autotrophic nutrition?

    <p>When organisms make their own food from simple substances</p> Signup and view all the answers

    What is the necessary component for photosynthesis that is used to build carbohydrates?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is saprotrophic nutrition?

    <p>When organisms take in nutrients from dead and decaying matter in the solution form</p> Signup and view all the answers

    What is nitrogen fixation?

    <p>The process of converting atmospheric nitrogen into a usable form for plants</p> Signup and view all the answers

    What is rhizobium?

    <p>A bacterium that takes atmospheric nitrogen and converts it into a usable form for plants</p> Signup and view all the answers

    What is the process of photosynthesis?

    <p>Capturing solar energy and converting it into chemical energy</p> Signup and view all the answers

    What is symbiotic relationship?

    <p>A relationship between organisms in which they live together and share shelter and nutrients</p> Signup and view all the answers

    What is insectivorous plants?

    <p>Plants that derive nutrition from trapping and digesting insects, despite being autotrophs</p> Signup and view all the answers

    Study Notes

    Biology: Nutrition and Photosynthesis

    • Living organisms require carbohydrates, proteins, fats, vitamins, and minerals for nutrition.

    • Photosynthesis, a process carried out in leaves, is the ultimate source of energy for all living organisms.

    • Autotrophic nutrition is the mode of nutrition in which organisms make their own food from simple substances, while heterotrophic nutrition is the mode of nutrition in which organisms depend on other organisms for food.

    • Chlorophyll is necessary for photosynthesis as it absorbs sunlight and converts it into chemical energy.

    • Nitrogen fixation is the process by which gaseous nitrogen is converted into a usable form for plants.

    • Saprotrophic nutrition is the mode of nutrition in which organisms take in nutrients in solution form from dead and decaying matter.

    • Rhizobium is a bacterium that takes atmospheric nitrogen and converts it into a soluble form, which it provides to leguminous plants in exchange for food and shelter.

    • Insectivorous plants are partial heterotrophs since they derive nutrition from other organisms despite being autotrophs.

    • Symbiotic relationships allow organisms to live together and share shelter and nutrients, which is significant for their survival.

    • Leaves are the food factories of plants, and the synthesis of food in plants occurs in leaves through the process of photosynthesis.

    • The necessary components for photosynthesis are chlorophyll, sunlight, carbon dioxide, and water. Chlorophyll traps light energy, sunlight provides energy for the reaction, carbon dioxide is used to build carbohydrates, and water is the source of electrons.

    • The process of photosynthesis involves capturing solar energy and converting it into chemical energy, which is the ultimate source of energy for all living organisms.Nutrition in Organisms

    • Autotrophic nutrition is when organisms make their food from simple substances, while heterotrophic nutrition is when they depend on other organisms for food.

    • Saprotrophic nutrition is when organisms take in nutrients from dead and decaying matter in the solution form.

    • Nitrogen, a component of proteins and nucleic acids, is necessary for plant growth, and soil bacteria convert gaseous nitrogen into a usable form for plants.

    • Fungi secrete digestive juices on dead and decaying matter, convert it into a solution, and absorb nutrients from it.

    • Rhizobium takes atmospheric nitrogen and converts it into a soluble form, which it provides to leguminous plants in exchange for food and shelter.

    • Insectivorous plants derive nutrition from trapping and digesting insects, despite being autotrophs.

    • Symbiotic relationships are significant for the survival of the organisms involved because they share shelter and nutrients, and this association benefits both organisms by providing food, shelter, or protection.

    • Parasitic nutrition is when organisms obtain nutrition from a living host, which may harm the host.

    • Holozoic nutrition is when organisms ingest solid food and digest it internally.

    • Mycorrhizae is a symbiotic relationship between fungi and plant roots that helps plants absorb nutrients from the soil.

    • Carnivorous plants derive nutrition from trapping and digesting animals, such as insects, spiders, and small rodents.

    • Some bacteria are chemosynthetic, meaning they make their food using energy from chemical reactions instead of sunlight.

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    Description

    Test your knowledge of biology with our quizzes on nutrition and photosynthesis, and nutrition in organisms. Learn about the different modes of nutrition, the necessary components for photosynthesis, and the significance of symbiotic relationships in the survival of organisms. Challenge yourself with questions on autotrophic and heterotrophic nutrition, saprotrophic and parasitic nutrition, and the role of bacteria in nitrogen fixation. Discover fascinating facts about insectivorous and carnivorous plants and their unique ways of deriving nutrition. Take the quiz

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