Domains of Life vs. Cell Theory Quiz

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Questions and Answers

What is the main difference between bacteria and archaea?

  • The way they create energy
  • The structure of their cell membrane lipids (correct)
  • The presence of plasmids
  • Their genetic material organization

In prokaryotic cells, what is the function of a nucleoid?

  • Stores excess nutrients
  • Contains all the genes required for survival (correct)
  • Aids in cellular respiration
  • Facilitates protein synthesis

Which prokaryotic cell component is NOT essential for life but often contains beneficial genes?

  • Plasmids (correct)
  • Ribosomes
  • Capsule
  • Cell wall

What distinguishes the two domains of prokaryotes, Bacteria, and Archaea?

<p>Their preferred environments (A)</p> Signup and view all the answers

Which type of archaea is known for thriving in high-temperature and acidic environments?

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

What is a defining feature of prokaryotic cells compared to eukaryotic cells?

<p>Simpler genetic material organization (A)</p> Signup and view all the answers

Which characteristic is common to both Gram Positive bacteria and Methanogens?

<p>Production of methane gas (C)</p> Signup and view all the answers

How do bacteria and archaea differ in terms of their lipid composition?

<p>Archaea have phospholipid membranes with ether linkages, while bacteria have ester linkages (C)</p> Signup and view all the answers

Which feature is common to all cells?

<p>Presence of genetic material (DNA) (B)</p> Signup and view all the answers

In what way do single cellular organisms differ from multicellular organisms?

<p>Composition of the barrier between cell and environment (B)</p> Signup and view all the answers

Which statement characterizes aerobes?

<p>They require oxygen in their metabolism. (A)</p> Signup and view all the answers

What differentiates autotrophs from heterotrophs?

<p>Source of energy creation (C)</p> Signup and view all the answers

Which factors must cells exist and survive in according to the text?

<p>Toxic molecules and limited oxygen (A)</p> Signup and view all the answers

What is a key difference in how organisms are classified based on energy creation?

<p>Method of accessing energy (C)</p> Signup and view all the answers

Which is a common feature found in all cells?

<p>&quot;Presence of ribosomes&quot; (A)</p> Signup and view all the answers

What distinguishes Archaea from Bacteria in terms of cell walls?

<p>Archaea have cell walls made of other types of proteins and/or sugars (C)</p> Signup and view all the answers

Which eukaryotic organelles exhibit features of prokaryotic cells according to the Endosymbiotic Theory?

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

What is the distinguishing feature of Eukaryotic Genomes compared to Prokaryotic Genomes?

<p>Presence of multiple linear chromosomes (B)</p> Signup and view all the answers

What is a common characteristic shared by Eukaryotes and Archaea?

<p>Having membrane-bound organelles (B)</p> Signup and view all the answers

Which domain includes organisms that live in high salt concentrations?

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

Which organelle is responsible for energy creation in eukaryotic cells?

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

What is the main environmental requirement for Methanogens, a type of Archaea, to survive?

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

What is the primary characteristic that influences the classification of organisms into different kingdoms within Eukarya?

<p>Presence or absence of membrane-bound organelles (C)</p> Signup and view all the answers

What term is used to describe organisms that lack a membrane-bound nucleus and other membrane-bound organelles?

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

Where are prokaryotes commonly found?

<p>In all environments including air, soil, and water (B)</p> Signup and view all the answers

Which type of prokaryote is beneficial to the host organism?

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

What is the distinguishing feature between Bacteria and Archaea based on their typical environments?

<p>The environments in which they are found (C)</p> Signup and view all the answers

What do Prokaryotes lack in terms of cellular structure?

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

Which type of prokaryote is detrimental to the host organism?

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

What term is used to describe organisms that benefit from a mutually beneficial relationship with another organism?

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

Where are Archaea typically found?

<p>'Extreme' environments only (B)</p> Signup and view all the answers

What is the meaning of 'prokaryote' when broken down into its roots?

<p>'Before nucleus' (C)</p> Signup and view all the answers

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