Lesson 2.5: Classification of Prokaryotes Flashcards

1
Q

What are prokaryotes

A

lack nucleus and other membrane-bound organelles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

describe the two groups of prokaryotes

A

bacteria- most abundant domain

archaea- single-cell; extreme conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the two domain system and explain how it was debunked?

A

the two-domain system consisting of archaea and bacteria was proposed in 1970 through rRNA it was revealed that archaea are more related to eukaryotes than to bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the three domains of life

A

Bacteria
Eukarya
Archaea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How are the domains further classified

A

genotype: DNA sequences to reveal evolutionary relationships

Phenotype: observable characteristics: cell shape, size, motility, and metabolic pathways

Ecology: environment and ecological niche

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

_____ are the fundamental units of biological diversity

A

species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

most widely accepted species concept

A

polyphenetic species concept

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Levels of classification

A

Kingdoms: not universally adopted
Phyla
Classes
Orders
Families
Genera
Species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Committee responsible for maintaning and updating ICNB

A

International Committee on Systematics of Prokaryotes ICSP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Additional points for nomenclature of prokaryotes

A

Separate systems: independent naming codes
Not static: periodically revised

How well did you know this?
1
Not at all
2
3
4
5
Perfectly