Please enable JavaScript.
Coggle requires JavaScript to display documents.
BIODIVERSITY, DOMAIN BACTERIA & ARCHEA, Reproduction - mostly sexually…
BIODIVERSITY
-
PROTISTA
CHARACTERISTIC
ALGAE
Unicellular green algae
● Mostly freshwater inhabitants
● Pear-shape
● Cup-shape chloroplast
● Two long flagella
● Has eyespot
Chlamydomonas sp.
● Eukaryotes
● Mostly photosynthetic pigments in plastids.
●Mostly live in aquatic environments
PROTOZOA
● Unicellular eukaryotes
● Mostly motile
● Mostly heterotroph nutrition
● Lack of cell wall
● Live in many different environments ; marine, freshwater and damp soil
CLASSIFICATION
-
PROTOZOA
Euglenophyta
● Euglena sp.
(Flagella)
Rhizopoda
● Amoeba sp.
(Pseudopodia)
Ciliophora
● Paramecium sp.
(Cilia)
Apicomplexa
● Plasmodium sp.
(Non-motile)
IMPORTANCE OF PROTISTA
-
HUMAN HEALTH
● Malaria is caused by parasite Plasmodium sp.
●Plasmodium sp. can live in two hosts
(human and Anopheles mosquitoes)
-
-
-
-
DOMAIN BACTERIA & ARCHEA
CLASSIFICATION
DOMAIN BACTERIA
- DNA not associated with histone protein
- Membrane lipids consist of unbranched hydrocarbon chain connected to glycerol by ester linkage
-
- Cell wall contain peptidoglycan
DOMAIN ARCHEA
- Cell wall lack (absent) with peptidoglycan
- DNA is associated with histone protein
- Membrane lipids consist of branched hydrocarbon chain connected to glycerol by ether linkage.
-
-
ROLES OF BACTERIA
PATHOGENIC
- Harmful bacteria cause various disease in animal and plant
- e.g
-food poisoning ; Salmonella sp.
-Tetanus ; Clostridium tetani
-Cholera ; Vibrio cholerae
IN RESEARCH AND TECHNOLOGY
- In biotechnology, bacterial plasmid is used as DNA cloning vector to carry target gene into the host cell
RECYCLING OF CHEMICAL ELEMENTS IN ECOSYSTEM
- Bacteria involved in nitrogen cycle to fix nitrogen into various forms that can be used by other organisms
- Example ; Nitrogen fixing bacteria (Rhizobium sp.)
SYMBIOTIC (ENTEROBACTERIA)
- E.coli live symbiotically in human intestine
- Human intestine provides them food and shelter
- They produce biotin and vitamin K for the host.
-
-
-
-
-
-
-
Chordata (Amphioxus sp.)
:diamond_shape_with_a_dot_inside: notochord
:diamond_shape_with_a_dot_inside: pharyngeal slits or cleft
:diamond_shape_with_a_dot_inside: dorsal, hollow nerve cord
:diamond_shape_with_a_dot_inside: muscular, post-anal tail
:diamond_shape_with_a_dot_inside: myotomes / segmented muscles
-
-
-
-
-
-
-