Cell Biology and Reproduction Quiz

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Questions and Answers

What is the defining characteristic of Telonemia?

  • Have two different length flagella
  • Heterotrophic bacterivores
  • Freeliving marine and freshwater eukaryotes
  • Have cilia of equal length (correct)

Why did Chromista and Chromalveolata end up being polyphyletic?

  • Due to multiple endosymbiotic events
  • Having gained chloroplasts from red algae (correct)
  • Being freeliving marine and freshwater eukaryotes
  • Having two different length flagella

What is the evolutionary connection between alveolates and stramenopiles in the SAR group?

  • Alveolates are sister taxa to stramenopiles (correct)
  • Both groups have two different length flagella
  • They acquired a chloroplast at the same time
  • Both are bacterivores

How many described species of Telonemia are there?

<p>7 described species (B)</p> Signup and view all the answers

What is the distinguishing feature of Isokonts?

<p>Having cilia of equal length (A)</p> Signup and view all the answers

In the Russian Doll Example, what does the Tertiary Endosym. refer to?

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

What is the primary source of chloroplast for dinoflagellates?

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

Which feature distinguishes Cercozoa (phylum) as a group?

<p>Cells are amoeboids and flagellates (B)</p> Signup and view all the answers

What is a characteristic of Foraminifera under retaria?

<p>Incorporation of chloroplasts from algae (B)</p> Signup and view all the answers

Which group undergoes secondary capture (secondary endosymbiosis) of green algae?

<p>Rhizaria - Cercozoa (C)</p> Signup and view all the answers

What is the significance of zooxanthellae for corals?

<p>Acts as a source of chloroplasts for the coral (B)</p> Signup and view all the answers

What is a primary endosymbiont characterized by in terms of membrane structure?

<p>2 membranes and originated from 2 eukarya (B)</p> Signup and view all the answers

Which group of protists is known for having a system of sacs called alveoli under their cell membranes?

<p>Ciliates, Dinoflagellates, Apicomplexans (D)</p> Signup and view all the answers

Which organelle is described as nonphotosynthetic within the group of Apicomplexans?

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

What type of nuclei do Ciliophorans exhibit?

<p>Nuclear dualism with macro and micro nuclei (D)</p> Signup and view all the answers

What is the main function of the macronucleus in ciliate reproduction?

<p>Performs most cellular functions like protein synthesis (C)</p> Signup and view all the answers

In ciliate reproduction, what leads to the production of diploid nuclei?

<p>Fusion of male and female pronuclei (B)</p> Signup and view all the answers

What is the dominant phase in the life cycle of Laminaria?

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

What is the characteristic feature of oogamy in terms of gametes?

<p>Female egg is much larger and immotile (C)</p> Signup and view all the answers

Which group is known as the 'lower fungi'?

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

What is the main mode of reproduction in Water Moulds from the Order Saprolegniales?

<p>Asexual reproduction via zoospores (B)</p> Signup and view all the answers

Which order includes Downy Mildews that are necrotrophs?

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

What is the main characteristic of Isomorphic algae life cycle?

<p>'Equal-sized' sporophyte and gametophyte phases (B)</p> Signup and view all the answers

What is the significance of a diploid nucleus?

<p>It contains a full set of instructions (chromosomes). (D)</p> Signup and view all the answers

What triggers the conversion of microstomes to macrostomes in Tetrahymena Vorax?

<p>Stomatin compounds released by competitors. (D)</p> Signup and view all the answers

What is a characteristic of Plasmodium Vivax compared to Plasmodium Falciparum?

<p>Plasmodium Vivax is more widespread. (C)</p> Signup and view all the answers

In Toxoplasma gondii's life cycle, what role does the cat play?

<p>Facilitates the production of oocysts through sexual reproduction. (B)</p> Signup and view all the answers

What is the role of an apicoplast in Apicomplexa?

<p>Nonphotosynthetic plastid with vestigial characteristics. (B)</p> Signup and view all the answers

What distinguishes Triphasic Life Cycle from Diphasic Life Cycle in Apicomplexa?

<p>Introduction of meorgony phase. (D)</p> Signup and view all the answers

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