Biomolecules Three Dimensional Structure Quiz
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Questions and Answers

What is the main role of covalent bonds in biological structures?

  • Facilitating biomolecular interactions
  • Determining the binding pockets in proteins
  • Providing energy for metabolic reactions
  • Maintaining 3D structures (correct)

Which element, in addition to carbon, is commonly found in biomolecules?

  • Calcium (Ca)
  • Nitrogen (N) (correct)
  • Zinc (Zn)
  • Sodium (Na)

How does ATP serve as the chemical currency of energy?

  • By forming weak forces to stabilize biomolecular interactions
  • By facilitating metabolic reactions within cells (correct)
  • By directly producing energy from sunlight
  • By maintaining the 3D structure of proteins

Which type of carbon-based molecule can have linear, cyclic, branched, and planar structures?

<p>Lipids (B)</p> Signup and view all the answers

In living systems, where does the energy required to maintain life primarily come from?

<p>Energy transformations within cells (D)</p> Signup and view all the answers

Which of the following is NOT an essential element for life, besides carbon?

<p>Magnesium (Mg) (A)</p> Signup and view all the answers

What is the central role of a carbon atom in biomolecules?

<p>Acting as a structural component (B)</p> Signup and view all the answers

Which statement accurately describes the 3D structure of macromolecules?

<p>Allows macromolecules to interact with other molecules (B)</p> Signup and view all the answers

What distinguishes anabolism from catabolism?

<p>Anabolism is exergonic, while catabolism is endergonic. (A)</p> Signup and view all the answers

Why is the spatial separation of energy-yielding and energy-consuming reactions important in eukaryotic cells?

<p>To maintain homeostasis and avoid equilibrium (D)</p> Signup and view all the answers

Which statement best describes the role of metabolism in living organisms?

<p>Metabolism involves all chemical reactions that occur in cells (A)</p> Signup and view all the answers

Which characteristic defines living matter according to the text?

<p>Extraction and use of energy for building structures and performing work (C)</p> Signup and view all the answers

Which of the following is NOT an inorganic precursor converted to metabolites in living systems?

<p>Glucose (C)</p> Signup and view all the answers

What are the major constituents of cells according to the text?

<p>Carbohydrates, lipids, proteins, and nucleic acids (D)</p> Signup and view all the answers

What is the function of macromolecules in cells?

<p>Serve as building blocks for biosynthesis (B)</p> Signup and view all the answers

Which organelles are involved in synthesis reactions (anabolism) within a cell?

<p>Endoplasmic reticulum and Golgi apparatus (B)</p> Signup and view all the answers

What is the significance of the three-dimensional structure of molecules?

<p>Influences the molecule's function (C)</p> Signup and view all the answers

What do macromolecules primarily consist of?

<p>Polymers made of covalently connected monomers (B)</p> Signup and view all the answers

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