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

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

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

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

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

What is the semifluid substance inside the cell called?

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

What is the site of protein synthesis in the cell?

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

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

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

What type of transport requires energy?

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

What is the basic unit of life?

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

Which type of cells lack a nucleus?

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

Which type of cells have a nucleus?

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

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

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

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

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

What is the semifluid substance inside the cell called?

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

What is the site of protein synthesis in the cell?

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

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

<p>Liquid (C)</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 (D)</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 (A)</p> Signup and view all the answers

What type of transport requires energy?

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

What is the basic unit of life?

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

What is the function of ribosomes?

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

What is the function of aquaporins?

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

What is the fluid-mosaic model?

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

What is endosymbiosis?

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

What is the function of the cytoplasm?

<p>To contain organelles (A)</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 (B)</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 (C)</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 (B)</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 (D)</p> Signup and view all the answers

What is the function of active transport?

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

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