NEET Botany Biological Classification Questions Solved


Read the following statements regarding archaebacteria.

I. Their cell wall lacks peptidoglycan.

II. They contain membrane bound organelles.

III. These have distinct ribosomal RNA sequence.

IV. Lipid in cell membrane of archaebacteria have different structure than those in all other organisms.

Choose the incorrecct option.

(1) I and II

(2) Only II

(3) Only IV

(4) III and IV

Audio Explanation:


(2) The term archaebacteria refers to the ancient origin of this group of bacteria, which seems to have diverged very early from the eubacteria. They do not contain membrane bound organelles. Their cell wall lacks peptidoglycan which is an important component of cell wall of eubacteria. Archaebacteria have distinct ribosomal RNA sequence. Lipid prsent in cell membrane of archaebacteria have different structures than those in all other organisms.

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