p2 cell evolution

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What is a characteristic of the cell wall of Archaea?

It is composed of peptidoglycan

It is composed of a single layer of protein

It is composed of various polysaccharides and glycoconjugates (correct)

It is composed of lipids with branched hydrocarbons

What is the name of the phylum of Archaea that provides evidence on the transition from Archaea to Eukarya?

Thaumarcheota

Euryarcheota

Crenarcheota

Lokiarchaeum (correct)

What is the term used to describe Archaea that thrive in extreme environments?

Halophiles

Thermophiles

Extremophiles (correct)

Methanogens

What is the unique feature of the archaeal cytoplasmic membrane that allows it to function in extreme environments?

It contains unique lipids that are temperature and mechanically resistant Signup and view all the answers

What is the primary role of methanogens in the environment?

They are responsible for the majority of methane produced on earth Signup and view all the answers

In which type of environments are Archaea commonly found?

Extreme environments, such as hot springs and volcanic vents Signup and view all the answers

What percentage of the genome is unknown?

32% Signup and view all the answers

What is a characteristic of eukaryotic cells?

Membrane-bound organelles Signup and view all the answers

Which group of organisms is most closely related to animals?

Chaonoflagellates Signup and view all the answers

What is a characteristic of fungi as eukaryotes?

Heterotrophic nutrition Signup and view all the answers

Which group of organisms shares traits with plants like cellulose synthesizing proteins and flagellated sperm?

Green algae Signup and view all the answers

What percentage of the human diet is from flowering plants?

50-90% Signup and view all the answers

What is the common characteristic of Archaea's membrane lipids?

They have branched hydrocarbons Signup and view all the answers

Which of the following is NOT a characteristic of Archaea's cell wall?

Have a thick layer of peptidoglycan Signup and view all the answers

What is the significance of Lokiarchaeum in the context of Archaea and Eukarya?

It provides evidence on the transition from Archaea to Eukarya Signup and view all the answers

Why are Archaea able to thrive in extreme environments?

Because their cytoplasmic membrane contains unique lipids Signup and view all the answers

What is the term used to describe the environment in which Archaea are commonly found?

Extremophilic Signup and view all the answers

What is the primary role of Archaea in the ecosystem?

To produce methane Signup and view all the answers

What is the primary difference between autotrophic and heterotrophic eukaryotes?

The mode of energy production Signup and view all the answers

Which of the following groups of eukaryotes is most closely related to land plants?

Green algae Signup and view all the answers

What is the characteristic that distinguishes fungi from other eukaryotes?

Their nutritional mode and structural organization Signup and view all the answers

What is the common ancestor of all eukaryotes?

A group of ancient protists Signup and view all the answers

Which eukaryotic kingdom is classified based on the type of nutrition they obtain?

Animals Signup and view all the answers

What is the characteristic shared by green algae and land plants?

All of the above Signup and view all the answers