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Question

Organisms without nucleus and cell organelles belong to

(i) fungi (ii) protista (iii) cyanobacteria (iv) archaebacteria


A

(i) and (ii)

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B

(iii) and (iv)

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C

(i) and (iv)

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D

(ii) and (iii)

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Solution

The correct option is B

(iii) and (iv)


The correct option is B.

Explanation of correct option:

Statement (iii):

  1. Kingdom-Monera includes cyanobacteria and archaebacteria.
  2. Cyanobacteria lack a membrane-bound nucleus, mitochondria, the Golgi apparatus, chloroplasts, and the endoplasmic reticulum, much like all other prokaryotes.
  3. In prokaryotes, the bacterial cell membrane performs all of the functions performed by these membrane-bound organelles in eukaryotes.

Statement (v):

  1. Archaebacteria are a collection of microorganisms that originated independently from bacteria and blue-green algae and are sometimes categorized as a kingdom.

Explanation of incorrect option:

Statement (i):

  1. Fungi and Protista are Eukaryotes with nuclei and cell organelles.
  2. True hyphae (multicellular filamentous fungus) and yeasts (unicellular fungi), which produce pseudohyphae, are the two primary morphological kinds of fungal cells.
  3. A real nucleus, internal cell components, and a cell wall are all present in a fungal cell.

Statement (ii):

  1. A eukaryote cell is a cell that belongs to the class of protists.
  2. The nucleus, mitochondria, vacuole, golgi body, chloroplast, and endoplasmic reticulum are the organelles that are found in protists.
    Final answer
    Archaebacteria are thought to be the world's earliest living organisms. Cyanobacteria are multicellular prokaryotic filamentous organisms.

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