MCQ on Archaebacteria: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.

In this post we are providing you MCQ on Archaebacteria, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.

MCQ on Archaebacteria

Q1. Methanococcus, Thermococcus and Methanobacterium exemplify _______.
a) bacteria that contain a cytoskeleton and ribosomes
b) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
c) archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
d) archaebacteria that contain protein homologous to eukaryotic core histones

Q2. Which of the following is found in extreme saline conditions?
a) eubacteria
b) cyanobacteria
c) archaebacteria
d) mycobacteria

Q3. After the new classification of living organisms into three domains of life (bacteria, archaea and eukarya) which one of the following is true about archaea?
a) completely differ from prokaryotes
b) completely differ from both eukaryotes and prokaryotes
c) have some novel features that are absent in other eukaryotes and prokaryotes
d) resemble eukarya in all respects

Q4. Methanogens belong to ______.
a) slime moulds
b) dinoflagellates
c) eubacteria
d) archaebacteria

Q5. Archaebacteria is different from eubacteria in having _______.
a) cell shape
b) mode of reproduction
c) mode of nutrition
d) cell membrane structure

Q6. Some bacteria thrive in extreme environment conditions such as absence of oxygen, high salt concentration, high temperature and acidic pH. It is _______.
a) Eubacteria
b) Cyanobacteria
c) Archaebacteria
d)

Q7. Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups called ______.
a) Cyanobacteria and Diatoms
b) Liverworts and Yeast
c) Protists and Mosses
d) Eubacteria and Archaea

Q8. Which of the following are likely to be present in deep sea water?
a) eubacteria
b) archaebacteria
c) saprophytic fungi
d) blue-green algae

Q9. Which of the following about archaebacteria is true ?
a) All halophiles
b) all photosynthetic
c) old living entities
d) all fossils

Q10. Most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorized as _______.
a) heterotrophic bacteria
b) archaebacteria
c) cyanobacteria
d) chemosynthetic autotrophs

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By Team Learning Mantras