Domains of Life vs. Cell Theory Quiz

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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?

Their preferred environments Signup and view all the answers

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

Thermoacidophiles Signup and view all the answers

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

Simpler genetic material organization Signup and view all the answers

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

Production of methane gas Signup and view all the answers

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

Archaea have phospholipid membranes with ether linkages, while bacteria have ester linkages Signup and view all the answers

Which feature is common to all cells?

Presence of genetic material (DNA) Signup and view all the answers

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

Composition of the barrier between cell and environment Signup and view all the answers

Which statement characterizes aerobes?

They require oxygen in their metabolism. Signup and view all the answers

What differentiates autotrophs from heterotrophs?

Source of energy creation Signup and view all the answers

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

Toxic molecules and limited oxygen Signup and view all the answers

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

Method of accessing energy Signup and view all the answers

Which is a common feature found in all cells?

"Presence of ribosomes" Signup and view all the answers

What distinguishes Archaea from Bacteria in terms of cell walls?

Archaea have cell walls made of other types of proteins and/or sugars Signup and view all the answers

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

Mitochondria and Chloroplasts Signup and view all the answers

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

Presence of multiple linear chromosomes Signup and view all the answers

What is a common characteristic shared by Eukaryotes and Archaea?

Having membrane-bound organelles Signup and view all the answers

Which domain includes organisms that live in high salt concentrations?

Archaea Signup and view all the answers

Which organelle is responsible for energy creation in eukaryotic cells?

Mitochondria Signup and view all the answers

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

Anaerobic conditions Signup and view all the answers

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

Presence or absence of membrane-bound organelles Signup and view all the answers

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

Prokaryotes Signup and view all the answers

Where are prokaryotes commonly found?

In all environments including air, soil, and water Signup and view all the answers

Which type of prokaryote is beneficial to the host organism?

Symbiotes Signup and view all the answers

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

The environments in which they are found Signup and view all the answers

What do Prokaryotes lack in terms of cellular structure?

Nucleus Signup and view all the answers

Which type of prokaryote is detrimental to the host organism?

Pathogens Signup and view all the answers