Carbohydrates

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Questions and Answers

Where do insoluble carbohydrate polymers serve as structural and protective elements?

  • Nucleus
  • Cell cytoplasm
  • Cell walls of bacteria and plants (correct)
  • Mitochondria

What do more complex carbohydrate polymers covalently attached to proteins or lipids act as?

  • Energy storage units
  • Structural components of cell membranes
  • Signals determining intracellular location or metabolic fate (correct)
  • Enzymes for digestion

What is the most abundant biomolecule on Earth?

  • Lipids
  • Proteins
  • Carbohydrates (correct)
  • Nucleic acids

What is the central energy-yielding pathway in most nonphotosynthetic cells?

<p>Oxidation of carbohydrates (D)</p> Signup and view all the answers

Which process converts CO2 and H2O into cellulose and other plant products?

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

Which process converts more than 100 billion metric tons of CO2 and H2O into cellulose and other plant products?

<p>Photosynthesis (D)</p> Signup and view all the answers

Where do insoluble carbohydrate polymers serve as structural and protective elements?

<p>Cell walls of bacteria and plants (C)</p> Signup and view all the answers

What is the central energy-yielding pathway in most nonphotosynthetic cells?

<p>Oxidation of carbohydrates (B)</p> Signup and view all the answers

What do more complex carbohydrate polymers covalently attached to proteins or lipids act as?

<p>Signals determining intracellular location or metabolic fate (D)</p> Signup and view all the answers

What are certain carbohydrates (sugar and starch) in most parts of the world?

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

What are the most abundant biomolecules on Earth?

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

Where do insoluble carbohydrate polymers serve as structural and protective elements?

<p>Cell walls of bacteria and plants (C)</p> Signup and view all the answers

What serves as the central energy-yielding pathway in most nonphotosynthetic cells?

<p>Oxidation of carbohydrates (B)</p> Signup and view all the answers

What do more complex carbohydrate polymers covalently attached to proteins or lipids act as?

<p>Signals determining intracellular location or metabolic fate (D)</p> Signup and view all the answers

What process converts CO2 and H2O into cellulose and other plant products?

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

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