The Ultimate Cell Theory Quiz
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Questions and Answers

What is the basic unit of life?

  • Atoms
  • Molecules
  • Cells (correct)
  • Proteins

    • What is the limit to how large a cell can be while remaining efficient and metabolically active?

  • Surface area
  • Cytoplasm
  • Volume
  • Surface area-to-volume ratio (correct)

    • Which type of cells lack a nucleus?

  • Archaeal cells
  • Prokaryotic cells (correct)
  • Eukaryotic cells
  • Bacterial cells

    • Which type of cells have a nucleus?

    <p>Eukaryotic cells</p> Signup and view all the answers

    Which type of cells include animals, plants, fungi, and protists?

    <p>Eukaryotic cells</p> Signup and view all the answers

    Which type of cells include two groups of bacteria: eubacteria and archaea?

    <p>Prokaryotic cells</p> Signup and view all the answers

    What is the semifluid substance inside the cell called?

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

    What is the site of protein synthesis in the cell?

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

    What is the consistency of the plasma membrane at body temperature?

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

    What is the function of aquaporins in the plasma membrane?

    <p>To act as channels for water to cross the membrane</p> Signup and view all the answers

    What is the random movement of molecules from a higher concentration to a lower concentration called?

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

    What type of transport requires energy?

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

    What is the basic unit of life?

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

    What is the limit to how large a cell can be while remaining efficient and metabolically active?

    <p>Surface area-to-volume ratio</p> Signup and view all the answers

    Which type of cells lack a nucleus?

    <p>Prokaryotic cells</p> Signup and view all the answers

    Which type of cells have a nucleus?

    <p>Eukaryotic cells</p> Signup and view all the answers

    Which type of cells include animals, plants, fungi, and protists?

    <p>Eukaryotic cells</p> Signup and view all the answers

    Which type of cells include two groups of bacteria: eubacteria and archaea?

    <p>Prokaryotic cells</p> Signup and view all the answers

    What is the semifluid substance inside the cell called?

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

    What is the site of protein synthesis in the cell?

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

    What is the consistency of the plasma membrane at body temperature?

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

    What is the function of aquaporins in the plasma membrane?

    <p>To act as channels for water to cross the membrane</p> Signup and view all the answers

    What is the random movement of molecules from a higher concentration to a lower concentration called?

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

    What type of transport requires energy?

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

    What is the basic unit of life?

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

    What is the difference between prokaryotic and eukaryotic cells?

    <p>Eukaryotic cells have a nucleus, while prokaryotic cells do not.</p> Signup and view all the answers

    What is the function of ribosomes?

    <p>Site of protein synthesis</p> Signup and view all the answers

    What is the function of aquaporins?

    <p>To act as channels for water to cross the membrane</p> Signup and view all the answers

    What is the fluid-mosaic model?

    <p>A model of the plasma membrane</p> Signup and view all the answers

    What is endosymbiosis?

    <p>The process by which eukaryotic cells evolved from archaea</p> Signup and view all the answers

    What is the function of the cytoplasm?

    <p>To contain organelles</p> Signup and view all the answers

    What is the function of facilitated diffusion?

    <p>To move molecules from a higher concentration to a lower concentration</p> Signup and view all the answers

    What is the limit to how large a cell can be while remaining efficient and metabolically active?

    <p>The smaller the better</p> Signup and view all the answers

    What is the function of bulk transport?

    <p>To move large molecules or particles into or out of the cell</p> Signup and view all the answers

    What is the function of glycoproteins and glycolipids in the plasma membrane?

    <p>To identify the cell as 'self' or 'foreign' and act as receptors</p> Signup and view all the answers

    What is the function of active transport?

    <p>To move molecules against their concentration gradient</p> Signup and view all the answers

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