Cell Wall and Cell Membrane

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Questions and Answers

What is the main component of the cell wall in plants?

  • Starch
  • Chitin
  • Cellulose (correct)
  • Lipids

What function does the cell wall serve in cells?

  • Regulates cell division
  • Stores genetic material
  • Facilitates cellular respiration
  • Gives shape to the cell (correct)

How are the lipids arranged within the cell membrane?

  • Randomly distributed throughout the membrane
  • Polar head towards the outer sides and hydrophobic tails towards the inner part (correct)
  • Polar head towards the inner sides and hydrophilic tails towards the outer part
  • Concentrated at the center of the membrane

What are the major lipids found in the cell membrane?

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

What is the main function of the cell wall in plants and fungi?

<p>Gives shape to the cell and protects it from mechanical damage and infection (A)</p> Signup and view all the answers

What are the primary components of the plant cell wall?

<p>Cellulose, hemicellulose, pectin, and proteins (A)</p> Signup and view all the answers

How are lipids arranged within the cell membrane?

<p>Phospholipids are arranged in a bilayer with polar heads outward and hydrophobic tails inward (D)</p> Signup and view all the answers

What is the main composition of the cell membrane?

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

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