Life on Earth Essay Example
Life on earth
A. Procaryotic Organisms
1. The prokaryotic cell, unlike the eukaryotic cell, is able to survive in an oxygen-deprived, mineral-deprived and vitamin-deprived environment. The normal cells in our body, the eukaryotic cells need oxygen, vitamins and minerals to be able to survive.
2.
The classification system of prokaryotes
Classification of Prokaryotes
Procaryotes can be divided into two distinct groups, archaea and eubacteria. Each group has its own characteristics.
The characteristics of the archaea group is o No Murein in the cell wall o The lipids within its cell membrane are branched o Its RNA synthesis involves one large enzyme o It is sensitive to the antibiotics streptomycin and chloramphenicol
The Archaea division can be further classified into the three groups: methanogens, halophiles and thermophiles.
The characteristics of the eubacteria group is o The Cell wall is composed of murein o The lipids in the cell membrane are not branched o Its RNA synthesis involves one small enzyme o It is not sensitive to the antibiotics streptomycin and chloramphenicol
Eubacteria can be classified into a number of different groups, including green bacteria, purple bacteria, spirochaetes, Gram-positive bacteria and cyanobacteria
How technological advances impacted on classifying Procaryotes
Technological advances in the development of microscopy, particularly the development of the electron microscope, have increased our knowledge of procaryotic organisms.
3.
Cyanobacteria
The environment it occupies
Cyanobacteria live in environments that are naturally wet or damp. These environments include: ponds, streams, wet rocks and damp soil. They thrive in warm conditions, especially in areas where the water contains dissolved organic material. They flourish in water that is salty, brackish or fresh, in cold and hot springs, and in environments where no other microalgae can exist.
Cyanobacteria, are small in
A. Procaryotic Organisms
1. The prokaryotic cell, unlike the eukaryotic cell, is able to survive in an oxygen-deprived, mineral-deprived and vitamin-deprived environment. The normal cells in our body, the eukaryotic cells need oxygen, vitamins and minerals to be able to survive.
2.
The classification system of prokaryotes
Classification of Prokaryotes
Procaryotes can be divided into two distinct groups, archaea and eubacteria. Each group has its own characteristics.
The characteristics of the archaea group is o No Murein in the cell wall o The lipids within its cell membrane are branched o Its RNA synthesis involves one large enzyme o It is sensitive to the antibiotics streptomycin and chloramphenicol
The Archaea division can be further classified into the three groups: methanogens, halophiles and thermophiles.
The characteristics of the eubacteria group is o The Cell wall is composed of murein o The lipids in the cell membrane are not branched o Its RNA synthesis involves one small enzyme o It is not sensitive to the antibiotics streptomycin and chloramphenicol
Eubacteria can be classified into a number of different groups, including green bacteria, purple bacteria, spirochaetes, Gram-positive bacteria and cyanobacteria
How technological advances impacted on classifying Procaryotes
Technological advances in the development of microscopy, particularly the development of the electron microscope, have increased our knowledge of procaryotic organisms.
3.
Cyanobacteria
The environment it occupies
Cyanobacteria live in environments that are naturally wet or damp. These environments include: ponds, streams, wet rocks and damp soil. They thrive in warm conditions, especially in areas where the water contains dissolved organic material. They flourish in water that is salty, brackish or fresh, in cold and hot springs, and in environments where no other microalgae can exist.
Cyanobacteria, are small in