DNA vs RNA: Structure, Function, and Differences
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Questions and Answers

Which molecule functions as a blueprint for genetic information and replicates DNA?

  • Ribose
  • Deoxyribose
  • RNA
  • DNA (correct)
  • What is the structure of DNA, consisting of two strands arranged in a double helix, made up of?

  • Nucleotides (correct)
  • Phosphates
  • Ribose sugar molecules
  • Nitrogenous bases
  • Which base is unique to RNA and replaces Thymine in its nucleotide sequence?

  • Uracil (correct)
  • Cytosine
  • Guanine
  • Adenine
  • Where is RNA primarily formed before being transported to specialized regions in the cell?

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

    What is the main purpose of homeostatic regulation in living organisms?

    <p>To maintain a stable internal environment</p> Signup and view all the answers

    Which factor is NOT considered for grouping organisms into domains and kingdoms?

    <p>Color of the organism</p> Signup and view all the answers

    What happens to a system in dynamic equilibrium when it is disturbed?

    <p>Regulatory devices respond to establish a new balance</p> Signup and view all the answers

    Which statement best describes the process of feedback control in dynamic equilibrium systems?

    <p>It helps in establishing a new balance after a disturbance</p> Signup and view all the answers

    Which molecule is the most abundant in cells, whole organisms, and on earth?

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

    What is the main function of water in the body?

    <p>Regulates body temperature</p> Signup and view all the answers

    What is the base structure of carbohydrates?

    <p>CH2O</p> Signup and view all the answers

    What are electrolytes in the context of the text?

    <p>Small molecules like mineral ions and salts</p> Signup and view all the answers

    Which type of lipid is responsible for cell membrane structure?

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

    Why is water considered a natural solvent in cells?

    <p>To dissolve macromolecules and small molecules</p> Signup and view all the answers

    Why must water-soluble vitamins be consumed regularly?

    <p>To prevent shortages or deficiencies</p> Signup and view all the answers

    Which group of vitamins can be stored in the liver for many years?

    <p>Fat-soluble vitamins</p> Signup and view all the answers

    What is the main focus of biology?

    <p>Study of living things</p> Signup and view all the answers

    Which Greek words make up the term 'biology'?

    <p>Bio = life, Logos = study</p> Signup and view all the answers

    What is homeostasis in biology?

    <p>A self-regulating process to maintain stability</p> Signup and view all the answers

    Why is the control of body temperature in humans mentioned as an example of homeostasis?

    <p>To illustrate the importance of maintaining stability in biological systems</p> Signup and view all the answers

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