Protozoa Characteristics and Types

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Questions and Answers

What is the main way amebas move?

  • By means of pseudopodia (correct)
  • By using flagella
  • By using cilia
  • By bacterial symbiosis

Which of the following is a general effect of parasitic protozoa on their hosts?

  • Increasing the host's metabolism
  • Providing nutrients to the host
  • Causing physical damage to the host tissue (correct)
  • Enhancing the host's immune response

What is the name of the superphylum that the Apicomplexa is recently proposed to be under?

  • Sporozoa
  • Alveolata (correct)
  • Chromista
  • Excavata

How do some parasitic protozoa, such as trypanosomes, affect their hosts?

<p>By absorbing glucose (B)</p> Signup and view all the answers

What is the term used to describe amoebas that are capable of freeliving and parasitic existence?

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

What is the shape of the projections (acanthopods) found in some Acanthamoeba spp.?

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

What is the composition of the endocyst of Acanthamoeba spp. cysts?

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

What process do trophozoites of Acanthamoeba spp. use to replicate?

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

What is a common habitat of Acanthamoeba spp.?

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

What is the typical shape of Acanthamoeba spp. cysts?

<p>Polyhedral or stellate (C)</p> Signup and view all the answers

What is the mode of movement and phagocytosis in Amoebozoa?

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

What is the characteristic of the cytoplasm in Amoebozoa?

<p>Divided into ectoplasm and endoplasm (D)</p> Signup and view all the answers

What is the usual mode of reproduction in Amoebozoa?

<p>Asexual reproduction by binary fission (A)</p> Signup and view all the answers

Which of the following genera of Amoebozoa is known to cause primary amebic meningoencephalitis (PAM)?

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

What is the characteristic of the nucleus in Amoebozoa?

<p>Single, membrane-bound nucleus (B)</p> Signup and view all the answers

What is the term for the process by which Amoebozoa ingest food?

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

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