Question

2 characteristics each of Archaebacteria, Eubacteria and Eukaryota.​

Answer 1

Answer:

Archaebacteria are obligate anaerobes, i.e., they flourish in the strict absence of oxygen., and that is why only they can undergo methanogenesis.

The cell membranes of the Archaebacteria are composed of lipids.

The rigid cell wall provides shape and support to the Archaebacteria.

Eubacteria are considered to be "true bacteria," according to Reference.com. They are characterized by a lack of nuclear membrane, single circular chromosome and have cell walls composed of peptidogycan

Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes.

The nucleus houses the cell’s DNA and directs the synthesis of proteins and ribosomes.

Mitochondria are responsible for ATP production; the endoplasmic reticulum modifies proteins and synthesizes lipids; and the golgi apparatus is where the sorting of lipids and proteins takes place.

Answer 2

Answer:

The common characteristics of Archaebacteria known to date are these:

(1) the presence of characteristic tRNAs and ribosomal RNAs;

(2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.

The characteristics of Eubacteria are:

• They are unicellular, prokaryotic microscopic cells.
• Their cell membrane contain lipids made up of glycerol-ester lipids.

The characteristic of Eukaryota are:

1. Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes.
2. However, unlike prokaryotic cells, eukaryotic cells have: a membrane-bound nucleus.
3. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)