Archaea

Archaea

Assessment

Interactive Video

Biology

11th Grade - University

Hard

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Mr. Andersen discusses Archaea bacteria, initially thought to inhabit only extreme environments like Yellowstone's hot pots and the Great Salt Lake. However, they are found everywhere, including oceans and human guts. Archaea are more closely related to eukaryotes than bacteria, despite being prokaryotic. They lack a nucleus and organelles but have a unique cell wall structure. Methanogens, a type of Archaea, produce methane in environments like cow guts. Archaea are versatile, living in diverse environments, and share more similarities with eukaryotes than previously thought.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where were Archaea bacteria first discovered?

In the ocean

In the hot pots of Yellowstone Park

In the Amazon rainforest

In the Sahara Desert

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of life in the ocean was found to be Archaea bacteria?

20%

30%

10%

5%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the phylogenetic tree, which group are humans more closely related to?

Plants

Fungi

Archaea

Bacteria

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key feature of Archaea bacteria's cell wall?

Lacks a cell wall

Made of peptidoglycan

Contains cellulose

Composed of an S-layer

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a characteristic of Archaea bacteria?

They are multicellular

They are prokaryotic

They have organelles

They have a nucleus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do methanogens produce as a byproduct?

Methane

Oxygen

Hydrogen

Nitrogen

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where can methanogens be commonly found?

In the gut of a cow

In the atmosphere

In the ocean

In volcanic rocks