2.1 Classification And Biodiversity

Question 1

Three domains

Answer 1

Eubacteria - bacteria - E.coli
Eukaryota - plantae fungi animalia and protoctista
Archea - bacteria

Question 2

5 kingdoms

Answer 2

Animalia - multicellular eukaryotes
Heterotrophic. No cell wall
Plantae - Multicellular eukaryotes. Photosynthetic. Cellulose cell walls
Protoctista - eukaryotic singled cells
Fungi - heterotrophic eukaryotes cell wall made up of chitin
Prokaryote - bacteria single celled and no membrane bound organelles

Question 3

Homologous structures

Answer 3

Have a similar arrangement of component parts and similar developmental origin but different functions

Question 4

Analogous structures

Answer 4

Have a corresponding function but different developmental origins

Question 5

DNA base sequence

Answer 5

Closely related organisms share more similarity in their DNA than those distantly related

Question 6

Hybridisation

Answer 6

Comparing the DNA base sequence of two species

Question 7

Amino acid sequencing

Answer 7

The sequence of amino acids is determined by the DNA base sequence.
The more similar the sequence of amino acid the more closely related the organisms are.