Biology Chapter on Carbohydrates and Transport
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Questions and Answers

What is the primary function of carbohydrates in the human body?

  • Providing energy (correct)
  • Facilitating transport across cell membranes
  • Storage of genetic information
  • Acting as enzymes
  • What type of transport requires energy to move molecules against the concentration gradient?

  • Active transport (correct)
  • Passive transport
  • Facilitated diffusion
  • Osmosis
  • Which of the following is NOT a type of macromolecule essential for life?

  • Nucleic acids
  • Vitamins (correct)
  • Carbohydrates
  • Proteins
  • How does secondary active transport differ from primary active transport?

    <p>It relies on energy created by primary active transport.</p> Signup and view all the answers

    What is the stoichiometric formula for carbohydrates?

    <p>(CH2O)n</p> Signup and view all the answers

    What role do carbohydrates play in cell communication?

    <p>They act as ID tags for cell recognition.</p> Signup and view all the answers

    What is the main driving force of passive transport mechanisms?

    <p>Kinetic energy from concentration gradients.</p> Signup and view all the answers

    Which of the following factors would NOT affect membrane transport?

    <p>Shape of the cell.</p> Signup and view all the answers

    What type of transport requires energy (ATP) to move substances across the cell membrane?

    <p>Primary active transport.</p> Signup and view all the answers

    What happens to molecular movement at higher temperatures?

    <p>It speeds up.</p> Signup and view all the answers

    Which transport mechanism directly involves the bulk movement of materials?

    <p>Bulk transport.</p> Signup and view all the answers

    Why do larger molecules have more difficulty crossing cell membranes?

    <p>They require different transport proteins.</p> Signup and view all the answers

    Which of the following accurately describes diffusion?

    <p>Movement from high concentration to low concentration.</p> Signup and view all the answers

    What is the primary role of carbohydrates in the body?

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

    Which carbohydrate is classified as a disaccharide?

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

    Which of the following carbohydrates is a polysaccharide that serves as energy storage in animals?

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

    Which of the following is a misconception about carbohydrates?

    <p>They are not important for muscle performance.</p> Signup and view all the answers

    What type of carbohydrate is cellulose?

    <p>Structural carbohydrate</p> Signup and view all the answers

    Which type of carbohydrate is primarily found in fruits and honey?

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

    What is a primary function of dietary fiber, which is a type of carbohydrate?

    <p>Supporting digestion</p> Signup and view all the answers

    Which disaccharide is found in milk products?

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

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    Description

    Test your knowledge on the functions of carbohydrates and various transport mechanisms in human biology. This quiz covers essential concepts such as active and passive transport, diffusion, and macromolecules. Perfect for students studying biological systems and cellular processes.

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