Amoeba Cell Wall Quiz

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Questions and Answers

What is the main function of invagination in microbial physiology?

  • To regulate selective permeability
  • To maintain membrane fluidity
  • To transport proteins across the cell membrane
  • To allow the cell to turn inside out or be folded back (correct)

Where are ICTYOSOMES primarily found?

  • Within the Golgi apparatus of plant cells
  • Exclusively in algae (correct)
  • In animal cells
  • Only in bacteria

Which structure is made of the protein pilin and is found on gram-negative bacteria?

  • ILI
  • IFFERENCE
  • IMBRIAE (correct)
  • PHAGOCYTOSIS

What is the main difference between a slime layer and a capsule in microbial physiology?

<p>Capsule is more organized, while a slime layer is loose and easily removed. (C)</p> Signup and view all the answers

What process involves an amoeba using extensions of its cytoplasm to surround and engulf large particles?

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

Which cellular attachment involves being attached to surfaces?

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

Why can't the cell wall undergo pinocytosis or phagocytosis?

<p>The cell wall is made of alternating sugars (A)</p> Signup and view all the answers

What is the main function of the tiny vacuoles filled with water in an Amoeba cell?

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

Which component of the cell membrane is responsible for connecting flagellin to the motor portion?

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

What is the main function of a bacterial capsule in terms of transport mechanisms?

<p>Inhibiting phagocytosis (B)</p> Signup and view all the answers

Why do bacterial capsules serve as a 'cellular garbage dump'?

<p>To accumulate waste materials (D)</p> Signup and view all the answers

What drives the rotation of the flagellar motor in bacteria?

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

Where is the P ring located in the flagellar structure?

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

What is the main function of the apothecium in lichens?

<p>Serve as the reproductive organ of the fungus (A)</p> Signup and view all the answers

Which organelle is essential for the survival and growth of plants and photosynthetic protists?

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

What structure is formed by the imbrication of fungal filaments and algal cells in lichens?

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

Which characteristic is NOT associated with protists?

<p>Cell wall composed of cellulose (D)</p> Signup and view all the answers

What is the function of the nucleus in protists?

<p>Protects the protist's DNA (B)</p> Signup and view all the answers

How do protists exhibit locomotion?

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

Which type of reproduction is characteristic of symbiotic units among protists?

<p>Asexual by cell division (A)</p> Signup and view all the answers

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