Eubacteria about eubacteria general characteristics microbiology

1. EUBACTERIA

2. Eubacteria is a large group of bacteria
having rigid cell walls, flagella, DNA
(single circular chromosome), and a
single cell lacking a nucleus.
All types of bacteria are included (Gram’s
positive and negative) under the eubacteria
except for archaebacteria.
They are single-celled prokaryotic
microorganisms, also known as true bacteria.
They consist of a range of characteristics and
are present in various conditions throughout the
world.
All living organisms are classified into three
domains of life: Domain Archeae, Domain
Eukaryota, and Domain Eubacteria.
Eubacteria are a complex domain of the
kingdom Monera.

3. CHARACTERISTICS
OF EUBACTERIA

4. THEY ARE UNICELLULAR,
PROKARYOTIC MICROORGANISMS;
HOWEVER, SOME BACTERIAL
COLONIES ARE FOUND IN
FILAMENTS OR AGGREGATES IN
THE FORM OF SURFACE BIOFILM.

5. THEY HAVE
FLAGELLA,
WHICH HELPS IN
LOCOMOTION.

6. EUBACTERIA
REPRODUCE BY
BINARY FISSION
OR BY BUDDING.

7. SOME OF THE EUBACTERIA
HAVE PILLI (SMALL
APPENDAGES ON THE CELL’S
SURFACE, THE FUNCTION OF
PILLI IS TO HELP IN SEXUAL
REPRODUCTION).

8. THE CELL WALL IS MADE
UP OF PEPTIDOGLYCAN
(MUREIN) IN A CROSS-
LINKED CHAIN PATTERN.

9. A CHROMOSOME IS SINGLE AND
CIRCULAR, BUT SOME BACTERIA
HAVE TWO CHROMOSOMES (LIKE
VIBRIO CHOLERA), WHILE OTHER
SPECIES HAVE A LINEAR
CHROMOSOME, AND NUCLEOSOMES
MAY BE PRESENT.

10. EUBACTERIA LACK A
MEMBRANE-BOUND
NUCLEUS.

11. THE SIZE OF THE BACTERIA
RANGES FROM 0.2 TO GREATER
THAN 5 MICROMETERS.

12. THEIR CELLS CONSIST OF
LIPIDS, CARBOHYDRATES,
PROTEIN, AND NUCLEIC ACID.

13. DEPENDING UPON THE
PEPTIDOGLYCAN IN THE CELL
WALL AND THE GRAM STAIN
THEY TAKE, EUBACTERIA ARE
CLASSIFIED AS GRAM-POSITIVE
AND GRAM-NEGATIVE.

14. THE PLASMA MEMBRANE CONTAINS
CYTOSOL (FLUID), WHICH IS PRIMARILY
COMPOSED OF WATER (80%), BUT IT HAS
A GEL-LIKE CONSISTENCY DUE TO THE
PRESENCE OF DISSOLVED NUTRIENTS,
DNA, CYTOSKELETAL ELEMENTS DNA,
AND OTHER SUBSTANCES.

15. THEY HAVE 70S-TYPE
RIBOSOMES AS ORGANELLES
COMPOSED OF RNA AND
PROTEIN THAT COMPLETE THE
PROCESS OF TRANSLATION.

16. THE SHAPE OF THE
EUBACTERIA IS DIFFERENT
SUCH AS COCCI, BACILLI,
RODS, VIBRIO, FILAMENT,
OR SPIROCHETES.

17. INTRONS ARE
ABSENT IN
EUBACTERIA.

18. EXHIBIT BOTH
GLYCOLYSIS
AND KERB’S
CYCLE.

19. THEY CAN PRODUCE SPORES
TO REMAIN DORMANT IN
UNFAVORABLE CONDITIONS
AND MAY CAUSE SERIOUS
DISEASES.