Representative Organisms

Question 1

Which RO’s are in the prokaryotes?

Answer 1

1. Bifidobacterium (bacteria)
2. Anabaena (bacteria)
3. Halobacterium (archaea)

Question 2

Similarities and differences in the Prokaryotes:

Answer 2

Similarities:
- All use binary fission for reproduction

Differences:
Bifidobacterium
- saprotroph
- unicellular

Anabaena
- photoautotrophic
- multicellular

Halobacterium
- photoheterotrophic
- unicellular

Question 3

What RO’s are in the Protists?

Answer 3

1. Amoeba
2. Paramecium
3. Micrasterias
4. Fucus

Question 4

Similarities and differences in the Protists:

Answer 4

Similarities:
- all are unicellular except for fucus
- amoeba and paramecium are heterotrophic (intracellular digestion)
- Micrasterias and fucus are photoautotrophic

Differences:
Amoeba
- reproduces asexually by mitosis

Paramecium
- reproduces both sexually (conjugation) and asexually (mitosis)

Micrasterias
- reproduces asexually by mitosis

Fucus
- reproduces sexually with conceptacles

Question 5

What RO’s are in the fungi?

Answer 5

1. Allomyces
2. Rhizopus
3. Sordaria
4. Agaricus bisporus

Question 6

Similarities and differences in the fungi:

Answer 6

Similarities:
- all are saprotrophs
- all reproduce both sexually and asexually (fragmentation)
- Rhizopus, Sordaria, and Agaricus bisporus sexually reproduce by fused hyphaes (non-motile gametes)

Differences:
Allomyces
- sexually reproduce by gametes being motile

Question 7

What RO’s are in the Plantae (green algae, mosses, ferns)?

Answer 7

1. Polytrichum
2. Lycopodium
3. Polypodium

Question 8

Similarities and differences in the plantae part 1:

Answer 8

Similarities:
- all are photoautotrophic
- all are multicellular
- all have a sporophyte and gametophyte generation (use both asexual and sexual reproduction)