Question

how are the following shapes of bacterial cell technically described ? a) elongated and rod like and b) comma like cells

Answer 1

Explanation:

pls look at the figs given above

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Answer 2

The given shape of bacterial cells are described as follows-

a) Elongated and rod like cells

• Rod-shaped bacilli can be found after cell division as single or numerous connected cells.
• Numerous bacterial taxonomic groupings contain bacilliform bacteria.
• Bacilliform bacteria can be either gram-positive, e.g. Actinomyces, Bacillus, Clostridium or gram-negative bacteria, e.g. Klebsiella, Salmonella, Escherichia, Streptobacillus, etc.
• Bacillus bacteria are rod-shaped, gram-positive bacteria.
• They are facultative anaerobic or obligate aerobe bacteria.
• They are able to produce endospores, can remain dormant for years, and are immune to heat, radiation, and disinfectants.
• They can withstand temperatures of up to 420 °C and severe heat.
• They are the most prevalent and pervasive type of bacteria.
• primarily free-living, non-parasitic species
• Bacillus cereus, which causes food poisoning, and Bacillus anthracis, which causes anthrax, are two parasitic and dangerous bacillus species.

b) Comma like cells

• These have a comma-like appearance and are curved called Vibrio.
• These primarily gram-negative bacteria are recognized to be the root of a number of foodborne illnesses.
• As facultative anaerobes with two independently replicating chromosomes, Vibrio sp.
• Vibrio cholerae and Vibrio parahaemolyticus are a few examples.
• In addition to the primary 4 forms, the bacterial cell has a variety of other morphologies, including rectangular, filamentous, star-shaped,  Stalked, fusiform, etc.

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