Question

Question :-

(A) What are the salient features of monera ?

(B) What will be the shape of bacillus and coccus type of bacteria ?

(C) Why is binomial nomenclature important ?

♦ No spamming​

Answer 1

Answer:

a)Salient features of Kingdom Monera:

Size: The organisms included in this kingdom are microscopic, unicellular, and prokaryotic.

Occurrence: These are omnipresent. ...

Nucleus: These organisms do not have a well-defined nucleus.

b)Cocci (or coccus for a single cell) are round cells, sometimes slightly flattened when they are adjacent to one another. Bacilli (or bacillus for a single cell) are rod-shaped bacteria. Spirilla (or spirillum for a single cell) are curved bacteria which can range from a gently curved shape to a corkscrew-like spiral.

c)Every recognized species on earth (at least in theory) is given a two-part scientific name. This system is called "binomial nomenclature." These names are important because they allow people throughout the world to communicate unambiguously about animal species.

Answer 2

${\large{\underline{\bf{\underline{Answers\: : - }}}}}$

(A) Monera is derived from a Greek word Moneres which means single . These are most primitive organisms . It includes all unicellular prokaryotic organisms

Some salient features of monera are :-

♦ Organisms which belong to Kingdom Monera are ubiquitous in distribution i.e found in water , air , soil , high temperature , low temperature , in our body → everywhere

♦ They lack nuclear membrane.

♦ Membrane bound organelles are absent like mitochondria, lysosomes , endoplasmic reticulum, plastids, Golgi bodies , etc.

♦ They contain 70S type of ribosomes

♦ Most of membranes of Monera have cell wall made up of peptidoglycan but in some don't have a cell wall like Mycoplasma .

♦ They show different modes of nutrition such as autotrophic, parasitic, heterotrophic , or saprophytic

♦ Reproduction in such organisms is primarily asexual by the process of fission or budding.

♦ Protosexual phenomenon also occurs in such animals.

♦ Monera are divided into two groups :-

1 ) Eubacteria

2 ) Archaebacteria

(B) Bacillus is derived from Greek word . The shape of bacillus will be Rod shaped .

Examples :-

♦ Lactobacillus

♦ Bacillus anthracis

Coccus is a Greek word . The shape of coccus will be spherical or ovoid .

Example :-

♦ Streptococcus

(C) $\clubsuit\: \: \sf\bold{\red{Binomial \: nomenclature}}$

☆ Bino = two

☆ mial = parts

☆ nomen = name

☆ clature = calling

It is a system of providing organism with a distinct name that consists of two parts .

Binomial nomenclature is important because of three main reasons :-

1 ) We give two different animals one name

2 ) Same plant and same animal have different names in other areas and in other languages

Like , Loin in Hindi is known as "shair" , in Africa Loin is known as "simba"

3) Some common names are misleading i.e they are wrong name but we call it .

Examples :-

1 ) Jelly fish : It's not a fish but belong to Coelenterata

2 ) Silver fish : It's also not a fish but belong to Arthropoda

3 ) Star fish : It is also not a fish but belong to Echinodermata

So , that's why Binomial nomenclature is important .

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Hope it helps :)