Tag: monera

Questions Related to monera

Which of the following differentiates gram positive and gram negative bacteria?

biology classification of plants monera five kingdoms of living organisms biodiversity and need of classification

  1. A liposaccharide, outer covering with a small peptidoglycan component in the cell wall

  2. A small peptidoglycan, component covering a large liposaccharide base

  3. A large peptidoglycan, component in the cell wall

  4. A cell wall composed of liposaccharide and chitin

  5. A cell wall composed of chitin over peptidoglycan

Show answer
Correct Option: C
Explanation:

The gram-negative cell wall is characterized by presence of outer membrane, a thinner peptidoglycan layer and extensive periplasmic space surrounding the peptidoglycan. The uppermost layer of the outer membrane has lipopolysaccharide while the innermost layer is a typical lipid layer. Gram positive cells are characterized by presence of single thick layer of cell wall which is made up of peptidogycan, teichoic acid and lipoteichoic acid. They lack outer membrane and porin and have narrow periplasmic space. Correct answer is C.

All autotrophs are monerans.

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

  • Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization such as a bacteria.
  • Moneran has heterogenicity in the mode of nutrition.
  • They are single-celled organisms with no true nuclear membrane 
  • The taxon Monera was first proposed as a phylum by Ernest Haeckel in 1866.
  • Autotrophs are the organism which prepares their own food. plants are autotrophs but belongs to Plantae.
So, the correct option is 'False'.

All monerans ___________________.

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Contain $DNA$ and $RNA$

  2. Demonstrate a long circular strand of $DNA$, not formed enclosed in a nuclear membrane

  3. Are bacteria

  4. All of the above

Show answer
Correct Option: D

Choose the correct answers from the alternatives given.
In Whittaker system of classification, all prokaryotes were included In the kingdom:

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Monera

  2. Protista

  3. Fungi

  4. Mychota

Show answer
Correct Option: A