Photosynthesis, Cellular Respiration, and Nitrogen Cycle Quiz
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Questions and Answers

Which nucleic acid is found in the nucleus and is double-stranded?

  • tRNA
  • RNA
  • mRNA
  • DNA (correct)
  • What type of nucleic acid contains ribose sugar and is single-stranded?

  • mRNA
  • RNA (correct)
  • rDNA
  • DNA
  • Which process involves the conversion of inorganic compounds to organic compounds in plants?

  • Diffusion
  • Active Transport
  • Photosynthesis (correct)
  • Osmosis
  • How do animals obtain organic compounds necessary for their survival?

    <p>By Ingesting plants and other animals</p> Signup and view all the answers

    Which type of transport involves the movement of substances across a cell membrane against a concentration gradient?

    <p>Active Transport</p> Signup and view all the answers

    What is the main function of fats in living organisms?

    <p>Serve as a source of energy</p> Signup and view all the answers

    Which of the following is NOT a good source of protein according to the text?

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

    What is the significance of essential amino acids in the diet?

    <p>They are necessary for growth and repair</p> Signup and view all the answers

    Which chemical unit is NOT present in nucleic acids according to the text?

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

    What does DNA stand for according to the text?

    <p>Deoxyribonucleic acid</p> Signup and view all the answers

    Which element is NOT mentioned as essential for life in the text?

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

    Which compound is mentioned as being the energy currency of our cells?

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

    Which type of compounds contain carbon according to the text?

    <p>Organic compounds</p> Signup and view all the answers

    Which element is mainly responsible for carrying oxygen to cells in the blood?

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

    Which part of our body relies on many metal elements for the conduction of electricity?

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

    What are the four main types of organic molecules that make up all living organisms?

    <p>Carbohydrates, Lipids, Proteins, Nucleic acids</p> Signup and view all the answers

    Which of the following foods are considered sources of lipids?

    <p>Animal body oils, plant seeds</p> Signup and view all the answers

    What is the primary function of carbohydrates in cellular respiration?

    <p>Providing energy for cellular respiration</p> Signup and view all the answers

    What distinguishes 'simple carbohydrates' from 'complex carbohydrates'?

    <p>Simple carbohydrates are monosaccharides or disaccharides, while complex carbohydrates are polysaccharides.</p> Signup and view all the answers

    Why are lipids important for living organisms?

    <p>To store energy for later use</p> Signup and view all the answers

    Which process involves converting glucose and oxygen into water and carbon dioxide?

    <p>Cellular Respiration</p> Signup and view all the answers

    What is the primary purpose of the process of 'Nitrogen Fixation'?

    <p>Fixing free nitrogen from the air into usable compounds</p> Signup and view all the answers

    What is the element needed for protein and nucleic acid synthesis that must be 'fixed' before it can be used by living organisms?

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

    Which statement best describes how plants impact the environment through chemical transformations?

    <p>Plants convert sunlight into oxygen and glucose</p> Signup and view all the answers

    'Living organisms change chemicals in the environment' primarily through which processes mentioned in the text?

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

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