Cell Biology and Reproduction Quiz

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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?

7 described species Signup and view all the answers

What is the distinguishing feature of Isokonts?

Having cilia of equal length Signup and view all the answers

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

Alveolates and Stramenopiles Signup and view all the answers

What is the primary source of chloroplast for dinoflagellates?

Zooxanthellae Signup and view all the answers

Which feature distinguishes Cercozoa (phylum) as a group?

Cells are amoeboids and flagellates Signup and view all the answers

What is a characteristic of Foraminifera under retaria?

Incorporation of chloroplasts from algae Signup and view all the answers

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

Rhizaria - Cercozoa Signup and view all the answers

What is the significance of zooxanthellae for corals?

Acts as a source of chloroplasts for the coral Signup and view all the answers

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

2 membranes and originated from 2 eukarya Signup and view all the answers

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

Ciliates, Dinoflagellates, Apicomplexans Signup and view all the answers

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

Apicoplast Signup and view all the answers

What type of nuclei do Ciliophorans exhibit?

Nuclear dualism with macro and micro nuclei Signup and view all the answers

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

Performs most cellular functions like protein synthesis Signup and view all the answers

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

Fusion of male and female pronuclei Signup and view all the answers

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

Sporophyte Signup and view all the answers

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

Female egg is much larger and immotile Signup and view all the answers

Which group is known as the 'lower fungi'?

Oomycetes Signup and view all the answers

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

Asexual reproduction via zoospores Signup and view all the answers

Which order includes Downy Mildews that are necrotrophs?

Peronosporales Signup and view all the answers

What is the main characteristic of Isomorphic algae life cycle?

'Equal-sized' sporophyte and gametophyte phases Signup and view all the answers

What is the significance of a diploid nucleus?

It contains a full set of instructions (chromosomes). Signup and view all the answers

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

Stomatin compounds released by competitors. Signup and view all the answers

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

Plasmodium Vivax is more widespread. Signup and view all the answers

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

Facilitates the production of oocysts through sexual reproduction. Signup and view all the answers

What is the role of an apicoplast in Apicomplexa?

Nonphotosynthetic plastid with vestigial characteristics. Signup and view all the answers

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

Introduction of meorgony phase. Signup and view all the answers